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In JoVE (2)
- Ortotopisk Levertransplantation hos råttor
- Tillverkning Utrustning för enklare Rat LeverTransplantation
Other Publications (108)
- Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
- Transplantation
- Transplant International : Official Journal of the European Society for Organ Transplantation
- Microvascular Research
- Hepatology (Baltimore, Md.)
- Transplantation
- Swiss Medical Weekly
- Journal of Hepatology
- Lancet
- Journal of Hepatology
- Liver International : Official Journal of the International Association for the Study of the Liver
- European Radiology
- Swiss Medical Weekly
- Journal of Clinical Microbiology
- Transplant International : Official Journal of the European Society for Organ Transplantation
- AJR. American Journal of Roentgenology
- Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
- Surgery
- Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
- Annals of Surgery
- Journal of Hepatology
- Pediatric Transplantation
- Journal of Hepatology
- Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
- Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology
- Xenotransplantation
- World Journal of Gastroenterology : WJG
- Swiss Medical Weekly
- Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract
- Journal of the American College of Surgeons
- Journal of Hepatology
- European Journal of Gastroenterology & Hepatology
- Clinical Transplantation
- Swiss Medical Weekly
- Journal of Clinical Anesthesia
- Annals of Surgery
- Gastroentérologie Clinique Et Biologique
- European Radiology
- Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract
- Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
- The American Journal of Gastroenterology
- Swiss Medical Weekly
- Archives of Internal Medicine
- Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
- Rheumatology International
- Pediatric Transplantation
- Revue Médicale Suisse
- Journal of Pediatric Gastroenterology and Nutrition
- Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract
- European Journal of Immunology
- Annals of Surgical Oncology
- Case Reports in Gastroenterology
- Digestive Surgery
- Journal of Surgical Oncology
- Transplant International : Official Journal of the European Society for Organ Transplantation
- Modern Pathology : an Official Journal of the United States and Canadian Academy of Pathology, Inc
- Annals of Surgery
- Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
- Transplant International : Official Journal of the European Society for Organ Transplantation
- Journal of Clinical Gastroenterology
- HPB : the Official Journal of the International Hepato Pancreato Biliary Association
- Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract
- Clinical Transplantation
- Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
- Journal of Clinical Gastroenterology
- Hepatology (Baltimore, Md.)
- Journal of Hepatology
- Annals of Surgical Oncology
- Journal of the American College of Surgeons
- Virchows Archiv : an International Journal of Pathology
- Journal of Pediatric Surgery
- Histopathology
- BMC Surgery
- BMC Gastroenterology
- Transplant International : Official Journal of the European Society for Organ Transplantation
- European Radiology
- Hepatobiliary & Pancreatic Diseases International : HBPD INT
- Cell Transplantation
- Clinical Transplantation
- Molecular Cancer Therapeutics
- Journal of Hepatology
- Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
- Annals of Surgical Oncology
- BMC Cancer
- Journal of Hepatology
- Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology
- Archives of Surgery (Chicago, Ill. : 1960)
- European Journal of Pediatrics
- Digestive and Liver Disease : Official Journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver
- PloS One
- BMC Gastroenterology
- The American Journal of Emergency Medicine
- World Journal of Surgery
- Transplantation
- Hepatology (Baltimore, Md.)
- Antiviral Therapy
- Cancer
- International Journal of Surgery Case Reports
- Journal of Hepato-biliary-pancreatic Sciences
- Cell Transplantation
- Annals of Surgery
- European Journal of Pediatric Surgery : Official Journal of Austrian Association of Pediatric Surgery ... [et Al] = Zeitschrift Für Kinderchirurgie
- Transplant International : Official Journal of the European Society for Organ Transplantation
- JAMA Surgery
- Journal of the American College of Surgeons
- HPB : the Official Journal of the International Hepato Pancreato Biliary Association
- Surgery
- Journal of Hepatology
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Articles by Gilles Mentha in JoVE
Ortotopisk Levertransplantation hos råttor
Graziano Oldani1,2, Stephanie Lacotte3, Philippe Morel4, Gilles Mentha1, Christian Toso1
1Transplantation Division, Department of Surgery, University of Geneva Hospitals, 2Department of Surgery, University of Pavia, 3Department of Surgery, University of Geneva, 4Division of Abdominal Surgery, Department of Surgery, University of Geneva Hospitals
Vi presenterar ett lätt att fastställa revidering av den klassiska två-manschetten teknik för ortotopisk levertransplantation hos råtta.
Tillverkning Utrustning för enklare Rat LeverTransplantation
Graziano Oldani1,2, Stephanie Lacotte3, Lorenzo Orci1, Philippe Morel4, Gilles Mentha1, Christian Toso1
1Transplantation Division, Department of Surgery, University of Geneva Hospitals, 2Department of Surgery, University of Pavia, 3Department of Surgery, University of Geneva, 4Division of Abdominal Surgery, Department of Surgery, University of Geneva Hospitals
Vi beskriver utformningen av "quick-linker" enhet för enklare orthotopic råtta levertransplantation.
Other articles by Gilles Mentha on PubMed
Liver Allocation in Switzerland
Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society. Jan, 2002 | Pubmed ID: 11799494
Immunological and Virological Effects of Ribavirin in Hepatitis C After Liver Transplantation
Transplantation. Feb, 2002 | Pubmed ID: 11884933
Hepatitis C recurring after liver transplant may cause progressive liver dysfunction, and available treatment regimens are unsatisfactory. A better understanding of the mechanisms of action of drugs currently used to manage hepatitis C would be helpful.
Persistence of Mild Parkinsonism 4 Months After Liver Transplantation in Patients with Preoperative Minimal Hepatic Encephalopathy: a Study on Neuroradiological and Blood Manganese Changes
Transplant International : Official Journal of the European Society for Organ Transplantation. Apr, 2002 | Pubmed ID: 11976741
Pallidal hyperintensity at magnetic resonance imaging (MRI) correlates to blood manganese (Mn) levels and parkinsonian signs in patients with cirrhosis. Similarly, metabolite changes in the basal ganglia (BG) at proton spectroscopy are related to these neurological signs. The evolution of these abnormalities after liver transplantation (OLT) is incompletely described. We evaluated 14 unselected consecutive patients with cirrhosis (minimal hepatic encephalopathy [HE] n=8, no HE n=6) before and 4 months after successful OLT for the evolution of parkinsonism using a validated scale (the United Parkinson's Disease Rating Scale, or UPDRS). Pallidal intensity at MRI, spectroscopic changes in the BG at magnetic resonance spectroscopy (MRS), and whole blood manganese concentrations were measured. After OLT in patients with preoperative minimal HE, the UPDRS scores improved, but mild parkinsonism persisted (16.1+/-3.6 to 6.2+/-4.8, P<0.05). Pallidal hyperintensity remained abnormal in 5/8 of cases, but spectroscopic changes normalized in all patients. Blood Mn remained elevated in 4/6 patients. In patients without HE, UPDRS values remained negligible (2.42+/-1.5 to 2.5+/-1.4). Pallidal hyperintensity normalized in 7/8 patients and spectroscopic changes normalized in all patients. Blood Mn remained elevated in 5/6 patients. Four months after successful OLT, patients with preoperative minimal HE and severe pallidal hyperintensity showed persistent mild parkinsonism. The role of blood manganese determination appears limited in the monitoring of MRI and parkinsonian signs changes after OLT.
Prostaglandin E(1) Protects Human Liver Sinusoidal Endothelial Cell from Apoptosis Induced by Hypoxia Reoxygenation
Microvascular Research. Jul, 2002 | Pubmed ID: 12074635
Hepatic ischemia-reperfusion injury is an important cause of graft dysfunction after liver transplantation. Liver sinusoidal endothelial cells (LSECs) are particularly sensitive to ischemia-reperfusion injury and undergo apoptosis. This study investigates the protective role of PGE(1) on apoptosis of LSEC during hypoxia-reoxygenation in vitro. Hypothermia-hypoxia followed by reoxygenation triggered LSEC apoptosis, and prostaglandin PGE(1) protected LSEC from apoptosis in a dose-dependent manner. The release of matrix metalloproteinases (MMPs) and nitric oxide (NO) by LSECs were increased after hypoxia reoxygenation. Both the MMP inhibitor BB3103 and the NO inhibitor LNAM effectively decreased LSEC apoptosis, suggesting a separate role of MMPs and NO in hypoxia-reoxygenation-induced LSEC apoptosis. PGE(1) down-regulated NO production by inhibiting the expression of inducible NO synthase in LSEC. PGE(1) also inhibited MMP-2 release from LSEC during hypoxia reoxygenation. These results indicate that the protection of LSECs from apoptosis by PGE(1) in hepatic ischemia-reperfusion injury is mediated by inhibiting inducible NO synthase and MMP release.
Lack of Evidence for Ribavirin-induced Bone Loss
Hepatology (Baltimore, Md.). Jul, 2002 | Pubmed ID: 12085375
Potential Impact of in Situ Liver Splitting on the Number of Available Grafts
Transplantation. Jul, 2002 | Pubmed ID: 12151735
The potential increase in the number of liver grafts gained from systematically using the technique of splitting optimal organs is still unknown. This study investigates the proportion of donors that should be considered for in situ split-liver harvesting according to strict criteria on which a consensus could be reached easily.
Liver Transplantation for Alcoholic Liver Disease: a Medical and Ethical Debate
Swiss Medical Weekly. Jun, 2002 | Pubmed ID: 12362289
Effect of Hyperthermic Preconditioning on Cold Preserved Rat Portal Veins
Journal of Hepatology. Nov, 2002 | Pubmed ID: 12399231
Little information is available regarding the effect of cold storage and hyperthermic preconditioning on the contractile responses of hepatic vessels. We then studied, after cold preservation, the in vitro contractile responses of rat portal veins (RPV) isolated from normal rats or from rats previously subjected to hyperthermia.
Budd-Chiari Syndrome: a Review by an Expert Panel
Journal of Hepatology. Mar, 2003 | Pubmed ID: 12586305
Hepatocellular Adenoma and Polycystic Ovary Syndrome
Liver International : Official Journal of the International Association for the Study of the Liver. Feb, 2003 | Pubmed ID: 12640725
Various identified risk factors predispose to hepatocellular adenomas. We present the case of a young woman with liver adenoma in a context of polycystic ovary syndrome, associated with high levels of androgens and following a high dose hormonal therapy. In view of this complication, we recommend a close screening of patients with such hormonal imbalance, especially those who are treated with high doses of hormones, with repeated liver tests and ultrasonographies.
Percutaneous Treatment of Liver Tumors with an Adapted Probe for Cooled-tip, Impedance-controlled Radio-frequency Ablation Under Open-magnet MR Guidance: Initial Results
European Radiology. May, 2003 | Pubmed ID: 12695834
Percutaneous radio-frequency (RF) ablation of liver tumors is usually performed under guidance of real-time US, but some tumor nodules in some patients cannot be adequately visualized with this technique. We report our preliminary results with an MR-compatible, internally perfused 17-G RF probe adapted to a standard RF generator for impedance-controlled RF ablation under MR guidance. Following initial testing of the probe for MR compatibility, artifacts and macroscopic effects on an ex vivo pig liver, four patients with eight neoplastic liver nodules (five metastatic and three primary), which could not be properly targeted by US, were treated with the cooled-tip technique under MRI guidance in an open 0.23-T magnet. Metallic artifacts produced by the probe were useful for accurate placement and did not interfere with MRI monitoring at the end of the procedure. Based on imaging findings, the immediate result of RF was considered adequate in all instances. Local recurrence occurred in one instance after 6 months, requiring repeat treatment. No adverse effects were noted. Initial experience suggests that the probe we used allows to perform impedance-controlled cooled-tip RF ablation of liver tumors under open-magnet MR guidance.
Long Term Results After Complete or Incomplete Surgical Resection of Liver Hydatid Disease
Swiss Medical Weekly. May, 2003 | Pubmed ID: 12833196
The liver is the organ most frequently infected by hydatid disease and medical therapy alone is ineffective in eliminating the parasite. Surgical options vary from complete resection (e.g. total pericystectomy or hepatectomy) to limited procedures (e.g. percutaneous aspiration or unroofing of cysts). The aim of this study was to determine the long-term outcome after complete or partial resection of liver hydatid cysts.
Monitoring of Cytomegalovirus Infection in Solid-organ Transplant Recipients by an Ultrasensitive Plasma PCR Assay
Journal of Clinical Microbiology. Aug, 2003 | Pubmed ID: 12904387
Early and accurate monitoring of cytomegalovirus (CMV) infection in solid-organ transplant recipients is of major importance. We have assessed the potential benefit of an ultrasensitive plasma-based PCR assay for renal transplant recipients. The pp65 CMV antigen (pp65 Ag) assay using leukocytes was employed as a routine test for the monitoring of CMV in 23 transplant recipients. We compared the pp65 antigenemia with the CMV load quantified by an ultrasensitive PCR (US-PCR) with a limit of detection of 20 CMV DNA copies/ml of plasma. CMV infection was detected in 215 (67%) of 321 plasma samples by the US-PCR compared with 124 (39%) of 321 samples by the pp65 Ag assay. The US-PCR assay permitted the detection of CMV infection episodes following transplantation a median of 12 days earlier than the pp65 Ag assay. Moreover, during CMV infection episodes, DNA detection by the US-PCR was consistently positive, whereas false negative results were frequently observed with the pp65 Ag assay. We found a good correlation between the two assays, and the peak viral loads were significantly higher in patients with CMV-related complications (median, 5000 DNA copies/ml) than in those without symptoms (1160 DNA copies/ml) (P = 0.048). In addition, patients that did not require preemptive therapy based on the results of the pp65 assay had CMV loads significantly lower (median, 36 DNA copies/ml) than those that needed treatment (median, 4703 DNA copies/ml) (P < 0.001). These observations provided cutoff levels that could be applied in clinical practice. The ultrasensitive plasma-based PCR detected CMV infection episodes earlier and provided more consistent results than the pp65 Ag assay. This test could improve the monitoring of CMV infection or reactivation in renal transplant recipients.
Ribavirin/interferon-alpha Sequential Treatment of Recurrent Hepatitis C After Liver Transplantation
Transplant International : Official Journal of the European Society for Organ Transplantation. May, 2004 | Pubmed ID: 15060764
Hepatitis C virus (HCV) infection invariably recurs after liver transplantation (LT), and sequels of chronic hepatitis of the graft are a significant cause of morbidity and mortality. In an uncontrolled trial, 31 patients with histologically confirmed hepatitis C after LT received, sequentially, ribavirin (10 mg/kg body weight q.d.) for 12 weeks, followed by ribavirin at the same dose q.d. plus interferon-alpha (IFN-alpha) [3 million units three times a week (3 MU TIW)] for another 48 weeks. Based on an intent-to-treat analysis, the percentages of patients with undetectable HCV RNA in their serum were 0%, 38.7% and 45.2% after 12, 36 and 60 weeks of therapy, respectively. A sustained virological response, as defined by undetectable serum HCV RNA 24 weeks after the end of treatment, was observed in 9/31 patients (29%). Sustained responders had a significant improvement of their liver inflammatory activity score (P=0.025), but not of their liver fibrosis score. The chances of sustained virological response correlated with the length of treatment, but not with the HCV genotype or baseline HCV RNA level. In conclusion, patients with recurrent hepatitis C after LT might benefit from ribavirin/IFN-alpha therapy, provided that the treatment is tolerated for a sufficient duration of time.
Blunt Abdominal Trauma: Does the Use of a Second-generation Sonographic Contrast Agent Help to Detect Solid Organ Injuries?
AJR. American Journal of Roentgenology. Nov, 2004 | Pubmed ID: 15505293
The objective of our study was to prospectively evaluate whether a second-generation sonography contrast agent (SonoVue) can improve the conspicuity of solid organ injuries (liver; spleen; or kidney, including adrenal glands) in patients with blunt abdominal trauma.
Microchimerism After Liver Transplantation: Absence of Rejection Without Abrogation of Anti-donor Cytotoxic T-lymphocyte-mediated Alloreactivity
Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society. Mar, 2005 | Pubmed ID: 15719407
Microchimerism (MC) is defined by the persistence of <1% circulating donor cells resulting from cell migration from the graft; MC may play a role in the induction of unresponsiveness to allogeneic tissues, or may be merely the consequence of the graft's acceptance following immunosuppression. To analyze early MC (7 patients) and late MC (12 patients) following a liver transplantation, we designed a sensitive and semiquantitative nested polymerase chain reaction (PCR) protocol based on the detection of incompatible human leukocyte antigen (HLA)-DRB1 donor alleles. MC was measured in multiple PCR samples and expressed as percent positive PCRs / time point. The detection level was 1 donor cell / 10(5) patient cells. All patients had detectable early MC, ranging from 5 to 100% positive PCRs in the 1st 3 months after transplantation. The kinetic analysis demonstrated that MC decreased during the 1st year in 6 of 7 patients. All of the 4 patients with the lowest MC had rejection episodes, vs. none among the 3 patients with MC >50%. However, cytotoxic T-lymphocyte reactivity (CTL) against HLA class I donor antigens could be demonstrated 1 year posttransplant in 2 patients with a high level of early MC. MC is a dynamic process, which is easily detectable <3 months after liver transplantation. In conclusion, a correlation between the level of early MC and the absence of rejection episodes was observed. However, high levels of early MC did not abrogate the persistence of an alloreactive response measured in vitro 1 year after transplantation, which suggests that MC did not lead to clonal deletion of donor-specific CTL.
Surgical Management and Long-term Outcome of Complicated Liver Hydatid Cysts Caused by Echinococcus Granulosus
Surgery. Mar, 2005 | Pubmed ID: 15746785
The aim of this retrospective study was to evaluate clinical presentation and long-term outcome of patients treated surgically for complicated liver hydatid cysts.
Impact of HLA Matching on the Outcome of Simultaneous Pancreas-kidney Transplantation
Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association. May, 2005 | Pubmed ID: 15814550
Simultaneous pancreas-kidney (SPK) transplantation has become the therapy of choice for type 1 diabetic patients with end-stage renal disease. The current analysis examined the impact of human leukocyte antigen (HLA) matching on graft outcome following SPK transplantation. The study population was obtained from patients enrolled in the Euro-SPK 001 study.
Effect of Surgical Margin Status on Survival and Site of Recurrence After Hepatic Resection for Colorectal Metastases
Annals of Surgery. May, 2005 | Pubmed ID: 15849507
To evaluate the influence of surgical margin status on survival and site of recurrence in patients treated with hepatic resection for colorectal metastases.
Management of Hepatocellular Carcinoma in the Waiting List Before Liver Transplantation
Journal of Hepatology. 2005 | Pubmed ID: 15858867
Glomerular and Tubular Function Following Orthotopic Liver Transplantation in Children
Pediatric Transplantation. Aug, 2005 | Pubmed ID: 16048605
Since its advent, cyclosporine nephrotoxicity has been a major concern to pediatricians attending to liver transplant recipients. The aims of this study were to examine glomerular and tubular function after orthotopic liver transplantation (OLT) in children, their correlation to CsA, and how they differed according to the underlying disease. Patients and methods: Glomerular and tubular function was examined in 28 patients aged 7 months to 14 yr at the time of transplantation (mean 4.0 +/- 3.6), retrospectively examining creatinine clearance, tubular phosphate reabsorption (TRP), calcium/creatinine ratio, sodium excretion fraction, and protein/creatinine ratio. The group with metabolic disease and an underlying tubulopathy was compared with the group with liver disease only. The effect of CsA trough levels and cumulated dose on these indices was examined, as was the effect of antihypertensives on creatinine clearance. Both glomerular and tubular functions improved significantly following liver transplantation. In patients on CsA (n = 21), CrCl decreased significantly at 1 month post-OLT (42.6 +/- 26.6 mL/min/1.73 m(2)) when compared with pretransplantation, and 3, 12 and 60 months post-OLT (p < 0.05). It improved between 12 and 60 months post-OLT (p < 0.05). It was correlated with cyclosporine trough levels (p < 0.03), and with total dose of CsA at 12 months. This was not true for patients on tacrolimus (n = 7). Overall pretransplant TRP was below normal (73.7% +/- 19.6), which was significantly lower than the values at years 2, 3, and 5 post-OLT (p < 0.05), owing mainly to the metabolic group which recovered normal proximal tubular function by the end of the second week post-OLT. Calcium/creatinine ratio was significantly worse in the group with liver disease only (p < 0.01). Protein/creatinine ratio normalized rapidly in both groups. Urinary sodium excretion fraction (FENa) was very abnormal in the early postoperative phase, normalizing thereafter in both groups. Kidney function improved after liver transplantation in patients with and without pre-existing kidney dysfunction. Overall, creatinine clearance was correlated to CsA trough levels suggesting CsA did not have an irreversible 'sclerosing' effect in the medium term. Combined antihypertensive therapy using nifedipine and enalapril may be the optimal choice for patients requiring medical management of their hypertension, although the observed effect on creatinine clearance did not reach statistical significance in this study. Tubular dysfunction is frequent in both groups of patients, pre- and post-transplant, and may contribute to bone mineral density as well as to metabolic disturbances in this population.
Is There a Customised Immunosuppressive Regimen for Patients Transplanted with Hepatocellular Carcinoma?
Journal of Hepatology. Oct, 2005 | Pubmed ID: 16118027
Resection, Transplantation, Either, or Both? Other Pieces of the Puzzle
Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society. Oct, 2005 | Pubmed ID: 16184567
OncoSurge: a Strategy for Improving Resectability with Curative Intent in Metastatic Colorectal Cancer
Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology. Oct, 2005 | Pubmed ID: 16192596
Most patients with colorectal liver metastases present to general surgeons and oncologists without a specialist interest in their management. Since treatment strategy is frequently dependent on the response to earlier treatments, our aim was to create a therapeutic decision model identifying appropriate procedure sequences.
Treatment of Fulminant Liver Failure by Transplantation of Microencapsulated Primary or Immortalized Xenogeneic Hepatocytes
Xenotransplantation. Nov, 2005 | Pubmed ID: 16202069
The aim of this study was to evaluate in vitro and in vivo functions of isolated hepatocytes after immortalization, cryopreservation, encapsulation and xenotransplantation into mice with fulminant liver failure (FLF).
Management of Hepatocellular Adenoma: Solitary-uncomplicated, Multiple and Ruptured Tumors
World Journal of Gastroenterology : WJG. Sep, 2005 | Pubmed ID: 16237767
While hepatocellular adenomas (HAs) have often been studied as a unique entity, we aimed to better define current management of the various forms of HAs.
Infection and Rejection in Liver Transplant Patients: a 10-year Swiss Single-centre Experience
Swiss Medical Weekly. Oct, 2005 | Pubmed ID: 16333770
Graft rejection and infection remain major morbidities following orthotopic liver transplantation (OLT). Rejection treatment may be associated with an increased rate of infectious complications. The aim of this study was to determine the relationship between rejection, rejection therapy and the risk of associated infections.
Comparison Between Hepatic Wedge Resection and Anatomic Resection for Colorectal Liver Metastases
Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract. Jan, 2006 | Pubmed ID: 16368496
Some investigators have suggested that wedge resection (WR) confers a higher incidence of positive margins and an inferior survival compared with anatomic resection (AR) of colorectal liver metastases (CLM). We sought to investigate the margin status, pattern of recurrence, and overall survival of patients with CLM treated with WR or AR. We identified 253 consecutive patients, in a multi-institutional database from 1991 to 2004, who underwent either WR or AR. WR was defined as a nonanatomic resection of the CLM, and AR was defined as single or multiple resections of one or two contiguous Couinaud segments. Clinicopathologic factors were analyzed with regard to pattern of recurrence and survival. One hundred six WRs were performed in 72 patients and 194 ARs in 181 patients. There was no difference in the rate of positive surgical margin (8.3%), overall recurrence rates, or patterns of recurrence between patients treated with WR vs. AR. Patients who had a positive surgical resection margin were more likely to recur at the surgical margin regardless of whether they underwent WR or AR. The median survival was 76.6 months for WR and 80.8 months for AR, with 5-year actuarial survival rates of 61% and 60%, respectively. AR is not superior to WR in terms of tumor clearance, pattern of recurrence, or survival. WR should remain an integral component of the surgical treatment of CLM.
Sinusoidal Obstruction Syndrome is a Major Feature of Hepatic Lesions Associated with Oxaliplatin Neoadjuvant Chemotherapy for Liver Colorectal Metastases
Journal of the American College of Surgeons. Jan, 2006 | Pubmed ID: 16377516
Liver Transplantation for Budd-Chiari Syndrome: A European Study on 248 Patients from 51 Centres
Journal of Hepatology. Mar, 2006 | Pubmed ID: 16427719
The results of liver transplantation for Budd-Chiari syndrome (BCS) are poorly known and the role and timing of the procedure are still controversial. The aim of this study was to investigate the results of transplantation for BCS, focusing on overall outcome, on prognostic factors and on the impact of the underlying disease.
Hepatocellular Carcinoma in a Liver-cell Adenoma Within a Non-cirrhotic Liver
European Journal of Gastroenterology & Hepatology. Apr, 2006 | Pubmed ID: 16538118
Liver-cell adenomas are benign lesions of the liver occurring predominantly in young women. Hepatocellular carcinomas in most of the cases arise in a cirrhotic liver during the fifth or sixth decade. We describe the case of a 40-year-old woman in whom work-up for epigastric pain revealed a peptic ulcer and a large hepatic mass. Tests for chronic liver diseases were negative. Imaging findings and biopsy specimens of the tumour were inconclusive. The tumour was surgically removed and a hepatocellular carcinoma arising within a liver-cell adenoma in a non-cirrhotic liver was found. Malignant transformation of liver-cell adenoma has only been reported in a few case reports. Mechanisms of transformation remain unclear. The imaging findings as well as histological features are presented in detail and the literature is discussed.
Long-term Renal Function After Liver Transplantation is Related to Calcineurin Inhibitors Blood Levels
Clinical Transplantation. Jan-Feb, 2006 | Pubmed ID: 16556162
Renal dysfunction is common after liver transplantation (LT). The aim of our study was to assess the prevalence of renal dysfunction 5 yr after LT and to identify risk factors for the development of this complication.
HIV and Solid Organ Transplantation: the Swiss Experience
Swiss Medical Weekly. Mar, 2006 | Pubmed ID: 16633968
Cardiovascular Collapse Due to Massive Pulmonary Thromboembolism During Orthotopic Liver Transplantation
Journal of Clinical Anesthesia. Aug, 2006 | Pubmed ID: 16905083
Severe pulmonary thromboembolism has been occasionally reported during orthotopic liver transplantation, with fatal outcomes occurring in about 50% of cases because of low cardiac output and multiple organ failure. Perioperative alterations in coagulation, insertion of pulmonary artery and other invasive catheters, administration of antifibrinolytic agents, and repeated ischemic insults may all promote the formation of intravascular/cardiac blood clots. We present a case of intraoperative right ventricular failure associated with the presence of a large thrombus wrapped around the pulmonary artery catheter. Identification of risk factors for intraoperative pulmonary thromboembolism warrants a prophylactic medical approach including selective blood component therapy and administration of antifibrinolytics guided by bedside coagulation tests as well as noninvasive hemodynamic monitoring.
Hepatic Resection for Noncolorectal Nonendocrine Liver Metastases: Analysis of 1,452 Patients and Development of a Prognostic Model
Annals of Surgery. Oct, 2006 | Pubmed ID: 16998361
To determine the utility of hepatic resection (HR) in the treatment of patients with noncolorectal nonendocrine liver metastases (NCNELM).
Perendoscopic Variceal Pressure Measurement: a Reliable Estimation of Portal Pressure in Patients with Cirrhosis?
Gastroentérologie Clinique Et Biologique. Aug-Sep, 2006 | Pubmed ID: 17075452
In patients with cirrhosis, the hepatic venous pressure gradient (HVPG) is the reference method for the assessment of portal hypertension (PHT). Variceal pressure (VP) may be measured at endoscopy, but its relationship to the HVPG remains controversial. The aim of the study was to retrospectively compare HVPG and VP values obtained in a cohort of patients with cirrhosis and PHT.
Image-guided Multipolar Radiofrequency Ablation of Liver Tumours: Initial Clinical Results
European Radiology. Sep, 2007 | Pubmed ID: 17375306
The local effectiveness and clinical usefulness of multipolar radiofrequency (RF) ablation of liver tumours was evaluated. Sixty-eight image-guided RF sessions were performed using a multipolar device with bipolar electrodes in 53 patients. There were 45 hepatocellular carcinomas (HCC) and 42 metastases with a diameter < or =3 cm (n = 55), 3.1-5 cm (n = 29) and >5 cm (n = 3); 26 nodules were within 5 mm from large vessels. Local effectiveness and complications were evaluated after RF procedures. Mean follow-up was 17 +/- 10 months. Recurrence and survival rates were analysed by the Kaplan-Meier method. The primary and secondary technical effectiveness rate was 82% and 95%, respectively. The major and minor complication rate was 2.9%, respectively. The local tumour progression at 1- and 2-years was 5% and 9% for HCC nodules and 17% and 31% for metastases, respectively; four of 26 nodules (15%) close to vessels showed local progression. The survival at 1 year and 2 years was 97% and 90% for HCC and 84% and 68% for metastases, respectively. Multipolar RF technique creates ablation zones of adequate size and tailored shape and is effective to treat most liver tumours, including those close to major hepatic vessels.
Resection of Hepatic Colorectal Metastases Involving the Caudate Lobe: Perioperative Outcome and Survival
Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract. Jan, 2007 | Pubmed ID: 17390189
To examine clinical features and outcome of patients who underwent hepatic resection for colorectal liver metastases (LM) involving the caudate lobe.
Conversion to Sirolimus-based Immunosuppression in Maintenance Liver Transplantation Patients
Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society. May, 2007 | Pubmed ID: 17457887
Sirolimus (SRL) has been proposed to replace calcineurin inhibitors (CNI) in case of CNI-induced toxicity. The aim of this study was to evaluate the efficacy and safety of conversion from CNI to SRL in maintenance liver transplantation (LT) patients. Between 2002 and 2006, conversion was performed in 48 patients (17 female, 31 male; mean age 57 +/- 10 yr) after a median delay of 19.4 months (range 0.2-173 months) after LT. Indication for conversion was renal impairment (RI) (78%), CNI neurotoxicity (13%), or post-LT cancer (9%). Median follow-up was 22.6 +/- 11 months. Median SRL dosage and trough levels were 2.4 +/- 1.3 mg and 8.1 +/- 2.7 microg/L. Immunosuppression consisted of SRL alone (33%), or SRL + mycophenolate mofetil (MMF) (39%), SRL + prednisone (15%), SRL + CNI (4%), or SRL + MMF + prednisone (8%). Mean glomerular filtration rate (GFR) improved from 33 to 48 mL/minute in patients with severe RI (P = 0.022) and from 56 to 74 mL/minute in patients with moderate RI (P = 0.0001). After conversion, main complications were albuminuria (36%), hyperlipidemia (49%), dermatitis (14%), edema (14%), oral ulcers (12%), joint pain (4%), infection (2%), and pneumonia (2%). Acute rejection (AR) occurred in 17% of the patients. SRL was withdrawn in 17% of the patients. In conclusion, conversion from CNI to SRL is safe and is associated with significant renal function improvement.
A 3-month Course of Long-acting Repeatable Octreotide (sandostatin LAR) Improves Portal Hypertension in Patients with Cirrhosis: a Randomized Controlled Study
The American Journal of Gastroenterology. Jul, 2007 | Pubmed ID: 17488248
In patients with cirrhosis, acute octreotide administration may transiently decrease the hepatic venous pressure gradient (HVPG). Information on long-term effects of octreotide is limited and controversial. We evaluated portal and systemic hemodynamics following a prolonged administration of long-acting octreotide in patients with cirrhosis.
Lessons Learned from One Thousand Consecutive Colonic Resections in a Teaching Hospital
Swiss Medical Weekly. May, 2007 | Pubmed ID: 17557216
Elective colectomies are standard procedures carrying below 1% mortality; by contrast, emergency colonic resections remain surgical challenges in compromised and/or elderly patients and are associated with high complication rates.
A Simple Score for Predicting Alcohol Relapse After Liver Transplantation: Results from 387 Patients over 15 Years
Archives of Internal Medicine. Jun, 2007 | Pubmed ID: 17563028
Alcohol relapse can negatively influence the outcome after liver transplantation (LT). The aim of our study was to identify factors that could be associated with the recurrence of harmful alcohol consumption after LT.
Management of Hepatocellular Carcinoma on the Waiting List Before Liver Transplantation: Time for Controlled Trials?
Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society. Nov, 2007 | Pubmed ID: 17969086
Pamidronate and Osteoporosis Prevention in Liver Transplant Recipients
Rheumatology International. Jan, 2007 | Pubmed ID: 16944154
Osteoporosis is a common complication in patients with end-stage liver disease and after orthotopic liver transplantation (LT), with resulting increasing fracture rate. In this study, we investigated the role of treatment with pamidronate in preventing further bone loss after LT. Eighty-five patients with end-stage liver disease were included in the study. Pamidronate 30 mg was given intravenously every 3 months after LT for the duration of 1 year to 43 patients with osteopenia or osteoporosis prior LT. The remainders served as controls. All patients received a supplementation of calcium and vitamin D. Bone mineral density (BMD) at the lumbar spine and the femoral neck, and markers of bone metabolism were measured before and 12 months after LT. Sixty-two BMD were available at 12 months; only paired BMD were evaluated. A significant increase in lumbar spine BMD was observed in pamidronate treated patients. No change was evident in controls. Femoral neck BMD decreased in both treated and untreated patients. Osteocalcin serum levels and deoxypyridinoline urinary excretion were significantly reduced by treatment. Our study suggests that pamidronate decreases bone turnover and is effective in preventing the course of bone loss after LT, however the efficacy, at the dosage regimen employed and in a follow-up of 12 months, appears to be limited to trabecular bone, with no effect on the cortical structure of the femur.
Focal Ischemic Necrosis in Advanced Biliary Atresia Cirrhosis
Pediatric Transplantation. Jun, 2008 | Pubmed ID: 18331537
This report correlates the clinical and biological findings, liver hemodynamics and histological features of focal INL in an infant with BA cirrhosis. An eight month old boy with BA, with previous successful porto-enterostomy, was admitted with signs of cholangitis and ascites. He was treated with antibiotics and diuretics with subsequent clinical improvement. Eight days later, while being fed with hyper-osmolar milk, he became febrile again: ASAT/ALAT climbed (9000/2300 IU/L), liver function deteriorated. Infectious work-up was negative. Liver-ultrasound showed reversed portal flow and a negative arterial diastolic flow. The patient recovered within five days under supportive treatment. A similar event recurred five days later. INL was suspected and semi-urgent living-related liver transplantation was performed, with uneventful post-operative course. Histology of the explanted liver showed extensive foci of INL of different ages. This report illustrates how the association of reversed portal and arterial diastolic flows, with subsequent liver hypoperfusion, may repeatedly cause foci of INL in BA cirrhosis, and lead to rapid progression to liver failure. Because of precarious hepatic blood supply in such patients, close monitoring of portal and diastolic arterial flows is recommended.
[Liver Transplantation: New Organ Allocation System in Switzerland]
Revue Médicale Suisse. Jan, 2008 | Pubmed ID: 18335887
This article describes the new organ allocation system for liver transplantation introduced in Switzerland on July 1, 2007. In its newly adopted transplantation law, Switzerland chose the MELD score (Model for end-stage liver disease), based on three laboratory values: total bilirubin, serum creatinine and INR. Advantages and limitations of the MELD score are discussed. Finally the West Switzerland joint liver transplantation program is briefly introduced.
Biliary Atresia: Swiss National Study, 1994-2004
Journal of Pediatric Gastroenterology and Nutrition. Mar, 2008 | Pubmed ID: 18376248
To determine the epidemiology of biliary atresia (BA) in Switzerland, the outcome of the children from diagnosis, and the prognostic factors.
Surgical Management of Early-stage Hepatocellular Carcinoma: Resection or Transplantation?
Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract. Oct, 2008 | Pubmed ID: 18709418
The surgical management of hepatocellular carcinoma in patients with well-compensated cirrhosis is controversial. The purpose of the current study was to compare the outcome of patients with well-compensated cirrhosis and early stage hepatocellular carcinoma treated with initial hepatic resection versus transplantation.
Polyfunctional HCV-specific T-cell Responses Are Associated with Effective Control of HCV Replication
European Journal of Immunology. Oct, 2008 | Pubmed ID: 18958874
HCV infection has a severe course of disease in HIV/HCV co-infection and in liver transplant recipients. However, the mechanisms involved remain unclear. Here, we evaluated functional profiles of HCV-specific T-cell responses in 86 HCV mono-infected patients, 48 HIV/HCV co-infected patients and 42 liver transplant recipients. IFN-gamma and IL-2 production and ability of CD4 and CD8 T cells to proliferate were assessed after stimulation with HCV-derived peptides. We observed that HCV-specific T-cell responses were polyfunctional in HCV mono-infected patients, with presence of proliferating single IL-2-, dual IL-2/IFN-gamma and single IFN-gamma-producing CD4+ and dual IL-2/IFN-gamma and single IFN-gamma-producing CD8+ cells. In contrast, HCV-specific T-cell responses had an effector profile in HIV/HCV co-infected individuals and liver transplant recipients with absence of single IL-2-producing HCV-specific CD4+ and dual IL-2/IFN-gamma-producing CD8+ T cells. In addition, HCV-specific proliferation of CD4+ and CD8+ T cells was severely impaired in HIV/HCV co-infected patients and liver transplant recipients. Importantly, "only effector" T-cell responses were associated with significantly higher HCV viral load and more severe liver fibrosis scores. Therefore, the present results suggest that immune-based mechanisms may contribute to explain the accelerated course of HCV infection in conditions of HIV-1 co-infection and liver transplantation.
Improved Long-term Outcome of Surgery for Advanced Colorectal Liver Metastases: Reasons and Implications for Management on the Basis of a Severity Score
Annals of Surgical Oncology. Jan, 2008 | Pubmed ID: 17909911
The outcome of liver resection for colorectal liver metastases (CRLM) appears to be improving despite the fact that surgery is offered to patients with more-severe disease. To quantify this assumption and to understand its causes we analyzed a series of patients on the basis of a standardized severity score and changes in management occurring over the years.
Spontaneous Resolution of Brain Edema in Fulminant Hepatic Failure Due to Hepatitis E
Case Reports in Gastroenterology. Sep, 2008 | Pubmed ID: 21897793
Fulminant hepatic failure is characterized by the presence of hepatic encephalopathy in the setting of acute liver injury that occurs in a noncirrhotic organ. Brain edema is the ultimate complication of advanced hepatic encephalopathy as it often leads to cerebral herniation and death. Thus, the presence of fulminant hepatic failure indicates the need for urgent liver transplantation to prevent death or irreversible brain damage. We report a very unusual evolution of fulminant hepatic failure complicated by brain edema and hepatic coma in a 45-year-old woman admitted with acute viral hepatitis E infection.
'Liver First' Approach in the Treatment of Colorectal Cancer with Synchronous Liver Metastases
Digestive Surgery. 2008 | Pubmed ID: 19212115
In patients with synchronous colorectal liver metastases, an approach reversing the traditional therapeutic order - i.e. starting with chemotherapy first, doing the liver surgery second, and performing the colorectal surgery last - is theoretically appealing as it avoids the risk of metastatic progression during treatment of the primary tumor. The present series updates on a previously reported pilot experience.
Hepatic Regeneration is Decreased in a Rat Model of Sinusoidal Obstruction Syndrome
Journal of Surgical Oncology. Jun, 2009 | Pubmed ID: 19353590
Oxaliplatin is a chemotherapeutic drug for colorectal adenocarcinoma able to extend the indications for resection of colorectal liver metastases. However, the drug may severely injure hepatic sinusoids, inducing a sinusoidal obstruction syndrome in non-tumoral parenchyma with a risk of decreased regeneration in the remnant liver following partial hepatectomy.
Prognosis of Acute Kidney Injury Requiring Renal Replacement Therapy in Solid Organ Transplanted Patients
Transplant International : Official Journal of the European Society for Organ Transplantation. Nov, 2009 | Pubmed ID: 19624498
Solid organ transplanted patients represent a complex and multi-morbid population with potential acute illness. They are at high risk not only for chronic renal failure (CRF), but also for acute kidney injury (AKI) and little is known about the overall epidemiology or prognosis. We conducted a retrospective review of all solid organ transplant patients who required emergency renal replacement therapy (RRT) for AKI during a period of 7.5 years. We identified 53 episodes of AKI requiring RRT occurring in 51 transplanted patients, and 58.5% of them were freshly (<48 h) transplanted when admitted in ICU. The majority of episodes were a result of cardio-circulatory or septic events (84%), and a large proportion of the AKI episodes were a result of multifactorial causes (27%). Overall 90 days mortality was 49%, and no difference was detected between kidney and nonkidney transplants. On univariate analysis, the risk factors for death were smoking status [OR = 4.09 (CI 95%: 1.16-14.43); P = 0.028] and sepsis [OR = 4.90 (CI 95%: 1.39-17.31); P = 0.014]. Transplanted patients with AKI are younger, more prone to be diabetic and to have previous chronic renal failure compared with the general ICU population, possibly in part because of their immunosuppressive therapy. Nevertheless, they have the same prognosis.
IgG4-associated Cholangitis: a Comparative Histological and Immunophenotypic Study with Primary Sclerosing Cholangitis on Liver Biopsy Material
Modern Pathology : an Official Journal of the United States and Canadian Academy of Pathology, Inc. Oct, 2009 | Pubmed ID: 19633647
IgG4-associated cholangitis is a steroid-responsive hepatobiliary inflammatory condition associated with autoimmune pancreatitis that clinically and radiologically mimics primary sclerosing cholangitis. In this study, we conducted a morphological and immunohistochemical analysis of liver material obtained from individuals with IgG4-associated cholangitis, and compared these with well-characterized cases of primary sclerosing cholangitis. The study group consisted of 10 patients (9 biopsy and 1 hepatectomy case) with IgG4-associated cholangitis and 17 patients with primary sclerosing cholangitis (16 needle biopsy and 1 hepatectomy case). All patients with IgG4-associated cholangitis had pancreatic involvement as well, and six pancreatectomy samples revealed characteristic histopathological features of autoimmune pancreatitis. Primary sclerosing cholangitis cases were defined by the presence of a characteristic ERCP appearance. Clinical, pathological, radiological, and follow-up data were recorded for all cases. Portal and periportal inflammation was graded according to Ishak's guidelines. Immunohistochemical stains for IgG and IgG4 were performed. The cohort of patients with IgG4-associated cholangitis (mean age: 63 years) was older than individuals with primary sclerosing cholangitis (mean age: 44 years). Seven of these cases showed intrahepatic biliary strictures. IgG4-associated cholangitis liver samples showed higher portal (P=0.06) and lobular (P=0.009) inflammatory scores. Microscopic portal-based fibro-inflammatory nodules that were composed of fibroblasts, plasma cells, lymphocytes, and eosinophils were exclusively observed in five of the IgG4-associated cholangitis cases (50%). More than 10 IgG4-positive plasma cells per HPF (high power field) were observed in 6 of the IgG4-associated cholangitis cases (mean: 60, range: 0-140 per HPF), whereas all primary sclerosing cholangitis cases showed significantly lesser numbers (mean: 0.08, range: 0-1 per HPF). On a liver biopsy, the histological features of IgG4-associated cholangitis may be distinctive, and in conjunction with IgG4 immunohistochemical stain, may help distinguish this disease from primary sclerosing cholangitis.
Rates and Patterns of Recurrence Following Curative Intent Surgery for Colorectal Liver Metastasis: an International Multi-institutional Analysis of 1669 Patients
Annals of Surgery. Sep, 2009 | Pubmed ID: 19730175
To investigate rates and patterns of recurrence in patients following curative intent surgery for colorectal liver metastasis.
Pharmacokinetics, Efficacy, and Safety of Mycophenolate Mofetil in Combination with Standard-dose or Reduced-dose Tacrolimus in Liver Transplant Recipients
Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society. Feb, 2009 | Pubmed ID: 19177449
The pharmacokinetics of mycophenolate mofetil (MMF) in liver transplant recipients may change because of pharmacokinetic interactions with coadministered immunosuppressants or because changes in the enterohepatic anatomy may affect biotransformation of MMF to mycophenolic acid (MPA) and enterohepatic recirculation of MPA through the hydrolysis of mycophenolate acid glucuronide to MPA in the gut. In the latter case, the choice of formulation (oral versus intravenous) could have important clinical implications. We randomized liver transplant patients (n = 60) to standard (10-15 ng/mL) or reduced (5-8 ng/mL) trough levels of tacrolimus plus intravenous MMF followed by oral MMF (1 g twice daily) with corticosteroids. Pharmacokinetic sampling was performed after the last intravenous MMF dose, after the first oral MMF dose, and at selected times over 52 weeks. The efficacy and safety of the 2 regimens were also assessed. Twenty-eight and 27 patients in the tacrolimus standard-dose and reduced-dose groups, respectively, were evaluated. No significant differences between the tacrolimus standard-dose and reduced-dose groups were seen in dose-normalized MPA values of the time to the maximum plasma concentration (1.25 versus 1.28 hours), the maximum plasma concentration (15.5 +/- 7.93 versus 13.6 +/- 7.03 microg/mL), or the area under the concentration-time curve from 0 to 12 hours (AUC(0-12); 53.0 +/- 20.6 versus 43.8 +/- 15.5 microg h/mL) at week 26 or at any other time point. No relationship was observed between the tacrolimus trough or AUC(0-12) and MPA AUC(0-12). Exposure to MPA after oral and intravenous administration was similar. Safety and efficacy were similar in the two treatment groups. In conclusion, exposure to MPA is not a function of exposure to tacrolimus. The similar safety and efficacy seen with MMF plus standard or reduced doses of tacrolimus suggest that MMF could be combined with reduced doses of tacrolimus.
Humoral and Cellular Rejection After Combined Liver-kidney Transplantation in Low Immunologic Risk Recipients
Transplant International : Official Journal of the European Society for Organ Transplantation. Feb, 2009 | Pubmed ID: 18954373
Combined liver-kidney transplantation is considered a low risk for immunologic complication. We report an unusual case of identical ABO liver-kidney recipient without preformed anti-human leukocyte antigen (HLA) antibodies, transplanted across a T- and B-cell-negative cross-match and complicated by early acute humoral and cellular rejection, first in the liver then in the kidney. While analyzing the immunologic complications in our cohort of 12 low-risk combined liver-kidney recipients, only one recipient experienced a rejection episode without detection of anti-HLA antibody over time. Although humoral or cellular rejection is rare after combined kidney-liver transplantation, our data suggest that even in low-risk recipients, the liver does not always systematically protect the kidney from acute rejection. Indeed, the detection of C4d in the liver should be carefully followed after combined liver-kidney transplantation.
Fatal Course of Recurrent Primary Biliary Cirrhosis After Liver Transplantation
Journal of Clinical Gastroenterology. Feb, 2009 | Pubmed ID: 18679131
Comparative Performances of Staging Systems for Early Hepatocellular Carcinoma
HPB : the Official Journal of the International Hepato Pancreato Biliary Association. Aug, 2009 | Pubmed ID: 19768142
Several staging systems for patients with hepatocellular carcinoma (HCC) have been proposed, but studies of their prognostic accuracy have yielded conflicting conclusions. Stratifying patients with early HCC is of particular interest because these patients may derive the greatest benefit from intervention, yet no studies have evaluated the comparative performances of staging systems in patients with early HCC.
Repeat Curative Intent Liver Surgery is Safe and Effective for Recurrent Colorectal Liver Metastasis: Results from an International Multi-institutional Analysis
Journal of Gastrointestinal Surgery : Official Journal of the Society for Surgery of the Alimentary Tract. Dec, 2009 | Pubmed ID: 19795176
Although 5-year survival approaches 55% following resection of colorectal liver metastasis, most patients develop recurrent disease that is often isolated to the liver. Although repeat curative intent surgery (CIS) is increasingly performed for recurrent colorectal liver metastasis, only small series have been reported. We sought to determine safety and efficacy of repeat CIS for recurrent colorectal liver metastasis as well as determine factors predictive of survival in a large multicenter cohort of patients.
Injection Drug Use Before and After Liver Transplantation: a Retrospective Multicenter Analysis on Incidence and Outcome
Clinical Transplantation. Jul-Aug, 2010 | Pubmed ID: 19849705
Injecting drug use (IDU) before and after liver transplantation (LT) is poorly described. The aim of this study was to quantify relapse and survival in this population and to describe the causes of mortality after LT.
Hepatitis C Virus Infection After Liver Transplantation is Associated with Lower Levels of Activated CD4(+)CD25(+)CD45RO(+)IL-7ralpha(high) T Cells
Liver Transplantation : Official Publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society. Jan, 2010 | Pubmed ID: 19866484
The expression of interleukin 7 receptor alpha(high) (IL-7Ralpha(high)) discriminates between activated CD25(+)CD45RO(+)CD4(+) T cells [IL-7Ralpha(high) and forkhead box P3-negative (FoxP3(-))] and regulatory T cells (IL-7Ralpha(low) and FoxP3(+)). The IL-7Ralpha(high)CD25(+)CD45RO(+)CD4(+)FoxP3(-) T cell population has been shown to be expanded in the blood and tissues of patients after kidney transplantation and to contain alloreactive T cells (activated T cells). In the present study, we analyzed the distribution of IL-7Ralpha(high)CD25(+)CD45RO(+)CD4(+)FoxP3(-) T cells in the blood of 53 patients after liver transplantation. The IL-7Ralpha(high)CD25(+)CD45RO(+)CD4(+)FoxP3(-) T cell population was significantly expanded (P < 0.0001) in stable transplant recipients versus healthy donors. However, the magnitude of the expansion was significantly higher (P < 0.0001) in liver transplant recipients with no hepatitis C virus (HCV) infection in comparison with those with a preexisting HCV infection. Interestingly, effective suppression of HCV viremia after antiviral therapy was associated with an increase in the IL-7Ralpha(high)CD25(+)CD45RO(+)CD4(+)FoxP3(-) T cell population to levels comparable to those of liver transplant recipients not infected with HCV. The present results indicate that (1) the IL-7Ralpha(high)CD25(+)CD45RO(+)CD4(+)FoxP3(-) T cell population is expanded after liver transplantation, (2) it is a valuable immunological marker for monitoring activated and potential alloreactive CD4 T cells in liver transplantation, and (3) a preexisting HCV infection negatively influences the expansion of this population in liver transplant recipients.
Octreotide Bolus Injection and Azygos Blood Flow in Patients with Cirrhosis: is the Effect Really Predictable?
Journal of Clinical Gastroenterology. Oct, 2010 | Pubmed ID: 19996986
Octreotide (OCT) improves the management of variceal bleeding, but the pattern of administration is not clearly defined. Available data show a transient decrease in portal pressure and azygos blood flow (AzBF) after OCT bolus injection with desensitization at readministration.
Partial Hepatectomy Versus Radiofrequency Ablation for Hepatocellular Carcinoma: Confirming the Trial That Will Never Be, and Some Comments on the Indications for Liver Resection
Hepatology (Baltimore, Md.). Apr, 2010 | Pubmed ID: 20373366
The Place of Downstaging for Hepatocellular Carcinoma
Journal of Hepatology. Jun, 2010 | Pubmed ID: 20385428
In the treatment of hepatocellular carcinomas, therapies such as trans-arterial chemo-embolisation, trans-arterial radioembolisation, percutaneous ethanol injection and radio-frequency ablation can decrease the size (and overall viability) of the tumours, thus potentially increasing the proportion of patients qualifying for resection and transplantation. While the use of such downstaging therapies is straightforward when resection is the aim, in a similar way to other neo-adjuvant treatments in the surgery of tumours that are too large or awkwardly placed to be primarily resected the issues related to transplantation are more complex. In the context of transplantation the word "downstaging" designates not only a neo-adjuvant treatment, but also a selection strategy to allow patients who are initially outside accepted listing criteria to benefit from transplantation should the neo-adjuvant therapy be successful in reducing tumour burden. The effectiveness of downstaging as a selection strategy, at first questioned because of methodological bias in the studies that described it, has been recently demonstrated by more solid prospective investigations. Several issues however remain open, such as inclusion criteria before the strategy is implemented (size/number, surrogate markers of differentiation/vascular invasion such as alpha-fetoprotein), the choice of which downstaging therapy, the end-points of treatment, and the need and duration of a period of observation proving disease response or stabilisation before the patient can be listed. The present review discusses which treatments and strategies are available for downstaging HCC on the basis of the published literature.
Neoadjuvant Chemotherapy in Patients with Stage IV Colorectal Cancer: a Comparison of Histological Response in Liver Metastases, Primary Tumors, and Regional Lymph Nodes
Annals of Surgical Oncology. Oct, 2010 | Pubmed ID: 20405223
We report the histopathological results of a novel "inversed" strategy designed to manage patients with colorectal cancer (CRC) who have synchronous liver metastases by using chemotherapy first, liver surgery second, and resection of the primary tumor as a final step. This study was designed to compare the response to chemotherapy in liver metastases, primary tumors, and locoregional lymph nodes.
Conditional Survival After Surgical Resection of Colorectal Liver Metastasis: an International Multi-institutional Analysis of 949 Patients
Journal of the American College of Surgeons. May, 2010 | Pubmed ID: 20421045
Traditionally, survival estimates have been reported solely as survival from the time of surgery, but future survival probability likely changes based on the survival time already accumulated after therapy-otherwise known as conditional survival (CS). We sought to assess the comparative performance of various colorectal liver metastasis prognostic scoring systems, as well as to investigate the CS of patients who underwent resection of colorectal liver metastasis.
Extensive Biliary Intraepithelial Neoplasia (BilIN) and Multifocal Early Intrahepatic Cholangiocarcinoma in Non-biliary Cirrhosis
Virchows Archiv : an International Journal of Pathology. Jun, 2010 | Pubmed ID: 20428886
Biliary intraepithelial neoplasia (BilIN), a preneoplastic condition that may precede invasive intrahepatic cholangiocarcinoma (ICC), has been compared to pancreatic intraepithelial neoplasia (PanIN), a precursor lesion of pancreatic carcinoma. Biliary tract carcinoma development and progression is associated with several gene alterations, but BilIN lesions have yet to be studied in detail by molecular techniques. We describe a case of extensive intrahepatic biliary dysplasia, with lesions ranging from BilIN-1 to BilIN-3 lesions, and multifocal microscopic ICC in hepatitis C virus (HCV)- and alcohol-related cirrhosis. The small ICC foci had remained undetected prior to transplantation. Fluorescence in situ hybridization (FISH) analysis was performed on three foci of BilIN-3 lesions and on three microinvasive ICC foci with a combination of three FISH probes directed against genes frequently altered in pancreatic and biliary tract carcinomas. FISH analysis revealed a CDKNA2 heterozygous deletion in one BilIN-3 focus, and in one non-contiguous ICC focus, although the deletion was just above the chosen threshold. No deletions were detected in the genomic regions encoding TP53 and SMAD4. This report documents for the first time the development of multifocal ICC in the setting of extensive biliary dysplasia in a patient with three risk factors, HCV infection, alcohol abuse, and cirrhosis, and suggests heterogeneous carcinogenesis in ICC and possible involvement of the CDKNA2 gene.
Cure of Multifocal Panhepatic Hepatoblastoma: is Liver Transplantation Always Necessary?
Journal of Pediatric Surgery. May, 2010 | Pubmed ID: 20438949
Multifocal panhepatic hepatoblastoma (HB) without extrahepatic disease is generally considered as an indication for total hepatectomy and liver transplantation. However, after initial chemotherapy, downstaging of the tumor sometimes allows complete macroscopic resection by partial hepatectomy. This procedure is no longer recommended because of the risk of persistent viable tumor cells in the hepatic remnant. We report our experience with conservative surgery in such cases.
Sinusoidal Obstruction Syndrome and Nodular Regenerative Hyperplasia Are Frequent Oxaliplatin-associated Liver Lesions and Partially Prevented by Bevacizumab in Patients with Hepatic Colorectal Metastasis
Histopathology. Mar, 2010 | Pubmed ID: 20459550
Because of its efficacy, oxaliplatin (OX) is increasingly used as a chemotherapeutic agent in the treatment of colorectal liver metastases (CRLM). Oxaliplatin-associated liver toxicity has been reported and can affect clinical practice, but studies on its prevalence and a full pathological description are lacking. The aims of this study were to fill this gap by providing, from a pathologist's perspective, a detailed assessment of the spectrum of hepatic lesions associated with OX, to suggest a scoring system to quantify them, and to investigate the protective effect of bevacizumab against OX-associated damage.
Predicting Survival After Pulmonary Metastasectomy for Colorectal Cancer: Previous Liver Metastases Matter
BMC Surgery. 2010 | Pubmed ID: 20525275
Few patients with lung metastases from colorectal cancer (CRC) are candidates for surgical therapy with a curative intent, and it is currently impossible to identify those who may benefit the most from thoracotomy. The aim of this study was to determine the impact of various parameters on survival after pulmonary metastasectomy for CRC.
Hyperimmune Anti-HBs Plasma As Alternative to Commercial Immunoglobulins for Prevention of HBV Recurrence After Liver Transplantation
BMC Gastroenterology. 2010 | Pubmed ID: 20598161
Hepatitis B immune globulins (HBIG) in combination with nucleos(t)ide analogues (NA) are effectively used for the prevention of hepatitis B virus (HBV) recurrence after liver transplantation (LT). However, associated treatment costs for HBIG are exceedingly high.
Liver Transplantation for Malignancies. How Did We Get There?
Transplant International : Official Journal of the European Society for Organ Transplantation. Jul, 2010 | Pubmed ID: 20624260
Radiofrequency Ablation of Small Liver Malignancies Under Magnetic Resonance Guidance: Progress in Targeting and Preliminary Observations with Temperature Monitoring
European Radiology. Apr, 2010 | Pubmed ID: 19760231
To evaluate the feasibility and effectiveness of magnetic resonance (MR)-guided radiofrequency (RF) ablation for small liver tumours with poor conspicuity on both contrast-enhanced ultrasonography (US) and computed tomography (CT), using fast navigation and temperature monitoring.
Selection of Patients with Hepatocellular Carcinoma Before Liver Transplantation: Need to Combine Alpha-fetoprotein with Morphology?
Hepatobiliary & Pancreatic Diseases International : HBPD INT. Oct, 2010 | Pubmed ID: 20943453
Detecting Rejection After Mouse Islet Transplantation Utilizing Islet Protein-stimulated ELISPOT
Cell Transplantation. 2011 | Pubmed ID: 21054945
Improved posttransplant monitoring and on-time detection of rejection could improve islet transplantation outcome. The present study explored the possibility of detecting harmful events after mouse islet transplantation measuring the immune responsiveness against islet extracts. Mouse islet transplantations were performed using various donor/recipient combinations, exploring autoimmune (NOD/SCID to NOD, n = 6) and alloimmune events (C57BL/6 to BALB/c, n = 20), a combination of both (C57BL/6 to NOD, n = 8), the absence of both (BALB/c to BALB/c, n = 21), or naive, nontransplanted control mice (n = 14). The immune reactivity was measured by ELISPOT, looking at the ex vivo release of IFN-γ from splenocytes stimulated by islet donor extracts (sonicated islets). The immune reactivity was not altered in the syngeneic and autoimmune models, demonstrating similar levels as nontransplanted controls (p = 0.46 and p = 0.6). Conversely, the occurrence of an allogeneic rejection alone or in combination to autoimmunity was associated to an increase in the level of immune reactivity (p = 0.023 and p = 0.003 vs. respective controls). The observed increase was transient and lost in the postrejection period or after treatment with CTLA4-Ig. Overall, allogeneic rejection was associated to a transient increase in the reactivity of splenocytes against islet proteins. Such a strategy has the potential to improve islet graft monitoring in human and should be further explored.
Tolerability of Everolimus-based Immunosuppression in Maintenance Liver Transplant Recipients
Clinical Transplantation. Jul-Aug, 2011 | Pubmed ID: 21158921
The aim of this study was to evaluate the tolerability of the conversion from calcineurin inhibitor (CNI) to everolimus (ERL) in maintenance liver transplant (LT) recipients.
Gene Expression Profiling Provides Insights into Pathways of Oxaliplatin-related Sinusoidal Obstruction Syndrome in Humans
Molecular Cancer Therapeutics. Apr, 2011 | Pubmed ID: 21330458
Sinusoidal obstruction syndrome (SOS; formerly veno-occlusive disease) is a well-established complication of hematopoietic stem cell transplantation, pyrrolizidine alkaloid intoxication, and widely used chemotherapeutic agents such as oxaliplatin. It is associated with substantial morbidity and mortality. Pathogenesis of SOS in humans is poorly understood. To explore its molecular mechanisms, we used Affymetrix U133 Plus 2.0 microarrays to investigate the gene expression profile of 11 human livers with oxaliplatin-related SOS and compared it to 12 matched controls. Hierarchical clustering analysis showed that profiles from SOS and controls formed distinct clusters. To identify functional networks and gene ontologies, data were analyzed by the Ingenuity Pathway Analysis Tool. A total of 913 genes were differentially expressed in SOS: 613 being upregulated and 300 downregulated. Reverse transcriptase-PCR results showed excellent concordance with microarray data. Pathway analysis showed major gene upregulation in six pathways in SOS compared with controls: acute phase response (notably interleukin 6), coagulation system (Serpine1, THBD, and VWF), hepatic fibrosis/hepatic stellate cell activation (COL3a1, COL3a2, PDGF-A, TIMP1, and MMP2), and oxidative stress. Angiogenic factors (VEGF-C) and hypoxic factors (HIF1A) were upregulated. The most significant increase was seen in CCL20 mRNA. In conclusion, oxaliplatin-related SOS can be readily distinguished according to morphologic characteristics but also by a molecular signature. Global gene analysis provides new insights into mechanisms underlying chemotherapy-related hepatotoxicity in humans and potential targets relating to its diagnosis, prevention, and treatment. Activation of VEGF and coagulation (vWF) pathways could partially explain at a molecular level the clinical observations that bevacizumab and aspirin have a preventive effect in SOS.
The Impact of Waiting List Alpha-fetoprotein Changes on the Outcome of Liver Transplant for Hepatocellular Carcinoma
Journal of Hepatology. Oct, 2011 | Pubmed ID: 21334400
Liver transplantation is a recognized treatment for selected patients with hepatocellular carcinoma (HCC), but transplant criteria still need to be refined, especially in the case of more advanced or downstaged tumors.
Outcome of Treated and Untreated Asymptomatic Bacteriuria in Renal Transplant Recipients
Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association. Dec, 2011 | Pubmed ID: 21592976
No guidelines exist concerning treatment of asymptomatic bacteriuria in renal transplant recipients (RTR). Because of scarce clinical symptoms and fear of complications, such episodes are frequently treated based on subjective criteria without clear clinical benefit, with the risk of selecting resistant pathogens.
Surgery Versus Intra-arterial Therapy for Neuroendocrine Liver Metastasis: a Multicenter International Analysis
Annals of Surgical Oncology. Dec, 2011 | Pubmed ID: 21681380
Management of patients with neuroendocrine liver metastasis (NELM) remains controversial. We sought to examine the relative efficacy of surgical management versus intra-arterial therapy (IAT) for NELM and determine factors predictive of survival.
Adjuvant Radio-chemotherapy for Extrahepatic Biliary Tract Cancers
BMC Cancer. 2011 | Pubmed ID: 21702920
Extrahepatic biliary duct cancers (EBDC) are uncommon malignancies characterized by a poor prognosis with high rate of loco-regional recurrence. The purpose of the present study is to assess the feasibility and the potential impact of adjuvant radiotherapy (RT) in a series of patients treated in one institution.
Demographics and Outcomes of Severe Herpes Simplex Virus Hepatitis: a Registry-based Study
Journal of Hepatology. Dec, 2011 | Pubmed ID: 21703210
Herpes simplex virus hepatitis is a rare, but severe disease, thus far only documented by case reports and short series. The present study was based on the SRTR registry, and included all listed patients for liver transplantation from 1985 to 2009 with a diagnosis of HSV hepatitis.
Intrahepatic Cholangiocarcinoma: an International Multi-institutional Analysis of Prognostic Factors and Lymph Node Assessment
Journal of Clinical Oncology : Official Journal of the American Society of Clinical Oncology. Aug, 2011 | Pubmed ID: 21730269
To identify factors associated with outcome after surgical management of intrahepatic cholangiocarcinoma (ICC) and examine the impact of lymph node (LN) assessment on survival.
Complications of Elective Liver Resections in a Center with Low Mortality: a Simple Score to Predict Morbidity
Archives of Surgery (Chicago, Ill. : 1960). Nov, 2011 | Pubmed ID: 21768406
To develop a score predicting the morbidity of liver resections in a center with low mortality.
Caroli Disease, Bilateral Diffuse Cystic Renal Dysplasia, Situs Inversus, Postaxial Polydactyly, and Preauricular Fistulas: a Ciliopathy Caused by a Homozygous NPHP3 Mutation
European Journal of Pediatrics. Aug, 2011 | Pubmed ID: 21845392
We report the rare association of Caroli disease (intrahepatic bile duct ectasia associated with congenital hepatic fibrosis), bilateral cystic renal dysplasia, situs inversus, postaxial polydactyly, and preauricular fistulas in a female child. She presented with end-stage renal disease at the age of 1 month, followed by a rapidly progressing hepatic fibrosis and dilatation of the intrahepatic bile ducts, leading to secondary biliary cirrhosis and portal hypertension. Combined liver-kidney transplantation was performed at the age of 4 years, with excellent outcome. DNA analysis showed a NPHP3 (coding nephrocystin-3) homozygote mutation, confirming that this malformation complex is a ciliopathy. Conclusion: This rare association required an exceptional therapeutic approach: combined simultaneous orthotopic liver and kidney transplantation in a situs inversus recipient. The long-term follow-up was excellent with a very good evolution of the renal and hepatic grafts and normalization of growth and weight. This malformation complex has an autosomal recessive inheritance with a 25% recurrence risk in each pregnancy.
Acinar Cell Carcinoma: a Possible Diagnosis in Patients Without Intrapancreatic Tumour
Digestive and Liver Disease : Official Journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver. Dec, 2011 | Pubmed ID: 21893434
BACKGROUND: Acinar cell carcinomas of the pancreas are rare neoplasms. Usually diagnosed at an advanced stage, in general they are large solid pancreatic tumours with an average size of more than 10 cm. AIMS AND RESULTS: We report 3 cases of acinar cell carcinomas involving the peripancreatic lymph nodes, the liver hilum and the colon respectively, without clinical or pathological evidence of pancreatic tumours. These highly cellular neoplasms showed a predominantly acinar cell differentiation intermingled with a ductal component, with intracellular or extracellular mucin production by at least 25% of tumour cells. In addition, one case showed endocrine differentiation. Diffuse immunoreactivity for acinar enzymes trypsin and chymotrypsin was present in all cases. CONCLUSION: The occurrence of acinar cell carcinomas outside the pancreas underlines the notion that acinar cell carcinomas may originate in extrapancreatic sites and probably develop from heterotopic or metaplastic pancreatic foci present along the biliary tract.
Interleukin-1 Receptor Antagonist Modulates the Early Phase of Liver Regeneration After Partial Hepatectomy in Mice
PloS One. 2011 | Pubmed ID: 21980458
Cytokine administration is a potential therapy for acute liver failure by reducing inflammatory responses and favour hepatocyte regeneration. The aim of this study was to evaluate the role of interleukin-1 receptor antagonist (IL-1ra) during liver regeneration and to study the effect of a recombinant human IL-1ra on liver regeneration.
A Capillary Blood Ammonia Bedside Test Following Glutamine Load to Improve the Diagnosis of Hepatic Encephalopathy in Cirrhosis
BMC Gastroenterology. 2011 | Pubmed ID: 22151412
Hepatic encephalopathy (HE) is a frequent and severe complication of cirrhosis. A single determination of ammonia in venous blood correlates poorly with neurological symptoms. Thus, a better biological marker is needed.
Splenic Rupture After Colonoscopy
The American Journal of Emergency Medicine. Feb, 2011 | Pubmed ID: 20825894
Survival After Lung Metastasectomy in Colorectal Cancer Patients with Previously Resected Liver Metastases
World Journal of Surgery. Feb, 2012 | Pubmed ID: 22167262
Resection of hepatic metastases is indicated in selected stage IV colorectal cancer (CRC) patients. A minority will eventually develop pulmonary metastases and may undergo lung surgery with curative intent. The aims of the present study were to assess clinical outcome and identify parameters predicting survival after pulmonary metastasectomy in patients who underwent prior resection of hepatic CRC metastases.
A Score Predicting Survival After Liver Retransplantation for Hepatitis C Virus Cirrhosis
Transplantation. Apr, 2012 | Pubmed ID: 22267157
Approximately one fourth of patients transplanted for hepatitis C virus (HCV)-induced liver failure progress to cirrhosis within 5 years, potentially requiring retransplantation. Although the relisting decision can be difficult in these patients, a score could help in selection of candidates with the best potential outcomes.
A Model for Dropout Assessment of Candidates with or Without Hepatocellular Carcinoma on a Common Liver Transplant Waiting List
Hepatology (Baltimore, Md.). Jan, 2012 | Pubmed ID: 22271250
In many countries, the allocation of liver grafts is based on the Model of End-stage Liver Disease (MELD) score and the use of exception points for patients with hepatocellular carcinoma (HCC). With this strategy, HCC patients have easier access to transplantation than non-HCC ones. In addition, this system does not allow for a dynamic assessment, which would be required to picture the current use of local tumor treatment. This study was based on the Scientific Registry of Transplant Recipients and included 5,498 adult candidates of a liver transplantation for HCC and 43,528 for non-HCC diagnoses. A proportional hazard competitive risk model was used. The risk of dropout of HCC patients was independently predicted by MELD score, HCC size, HCC number, and alpha-fetoprotein. When combined in a model with age and diagnosis, these factors allowed for the extrapolation of the risk of dropout. Because this model and MELD did not share compatible scales, a correlation between both models was computed according to the predicted risk of dropout, and drop-out equivalent MELD (deMELD) points were calculated. CONCLUSION: The proposed model, with the allocation of deMELD, has the potential to allow for a dynamic and combined comparison of opportunities to receive a graft for HCC and non-HCC patients on a common waiting list.
Herpes Simplex Virus Load to Monitor Antiviral Treatment After Liver Transplantation for Acute Herpetic Hepatitis
Antiviral Therapy. 2012 | Pubmed ID: 22290285
Herpes simplex virus (HSV) hepatitis is an uncommon cause of acute liver failure (ALF), primarily affecting immunocompromised patients. So far, 148 cases have been published, of which 9 underwent liver transplantation (LT). The reported post-transplant survival is poor, with over 60% dying in the first year. Dosing and duration of antiviral therapy after LT are not established. Concerns include both the risk of hepatic recurrence after LT and emergence of viral resistance during prolonged therapy. HSV DNA plasma levels might be helpful to monitor therapeutic response and guide duration of therapy. We present a case of ALF complicating a primary HSV-1 infection in an immunocompetent host, who required emergency LT. We further discuss the value of measuring serial HSV DNA plasma loads to monitor antiviral therapy.
The Impact of Portal Vein Resection on Outcomes for Hilar Cholangiocarcinoma: a Multi-institutional Analysis of 305 Cases
Cancer. Mar, 2012 | Pubmed ID: 22415526
BACKGROUND. Surgical strategy for hilar cholangiocarcinoma often includes hepatectomy, but the role of portal vein resection (PVR) remains controversial. In this study, the authors sought to identify factors associated with outcome after surgical management of hilar cholangiocarcinoma and examined the impact of PVR on survival.
Management of a Ruptured Hydatid Cyst Involving the Ribs: Dealing with a Challenging Case and Review of the Literature
International Journal of Surgery Case Reports. 2012 | Pubmed ID: 22503916
Hydatid liver cysts can rupture into neighboring structures in 15-60% of patients, and most often involves the bile duct, the bronchi, and the peritoneal/pleural cavities. Rarely, chest or abdominal wall involvement occurs that are challenging to manage. This case report and literature review describes the management of patients with chest wall and rib invasion.
Factors Predicting Survival After Post-transplant Hepatocellular Carcinoma Recurrence
Journal of Hepato-biliary-pancreatic Sciences. Jun, 2012 | Pubmed ID: 22710887
Although factors associated with an increased risk of recurrence after liver transplantation for hepatocellular carcinoma (HCC) have been extensively studied, the history of patients with a post-transplant recurrence is poorly known.
Posttransplant Cellular Immune Reactivity Against Donor Antigen Correlates with Clinical Islet Transplantation Outcome: Towards a Better Posttransplant Monitoring
Cell Transplantation. 2012 | Pubmed ID: 22963841
The aim of the present study was to assess the efficiency of cell-based immune assays in the detection of alloreactivity after islet transplantation and to correlate these results with clinical outcome. Mixed lymphocyte cultures were performed with peripheral blood mononuclear cells from recipients (n = 14), donors, or third party. The immune reactivity was assessed by the release of IFN-γ (ELISpot), cell proliferation (FACS analysis for Ki67), and cytokine quantification (Bioplex). Islet function correlated with the number of IFN-γ-secreting cells following incubation with donor cells (p = 0.007, r = -0.50), but not with third party cells (p = 0.61). Similarly, a high number of donor-specific proliferating cells was associated with a low islet function (p = 0.006, r = -0.51). Proliferating cells were mainly CD3(+)CD4(+) lymphocytes and CD3(-)CD56(+) natural killer cells (with low levels of CD3(+)CD8(+) lymphocytes). Patients with low islet function had increased levels of CD4(+)Ki67(+)cells (p ≤ 0.0001), while no difference was observed in CD8(+)Ki67(+) and CD56(+)Ki67(+) cells. IFN-γ, IL-5, and IL-17 levels were increased in patients with low islet function, but IL-10 levels tended to be lower. IFN-γ-ELISpot, proliferation, and cytokines were similarly accurate in predicting clinical outcome (AUC = 0.77 ± 0.088, 0.85 ± 0.084, and 0.88 ± 0.074, respectively). Cellular immune reactivity against donor cells correlates with posttransplant islet function. The tested assays have the potential to be of substantial help in the management of islet graft recipients and deserve prospective validation.
A Survival Analysis of the Liver-first Reversed Management of Advanced Simultaneous Colorectal Liver Metastases: a LiverMetSurvey-based Study
Annals of Surgery. Nov, 2012 | Pubmed ID: 23095621
Liver-first reversed management (RM) for the treatment of patients with simultaneous colorectal liver metastases (CRLM) includes liver-directed chemotherapy, the resection of the CRLM, and the subsequent resection of the primary cancer. Retrospective data have shown that up to 80% of patients can successfully undergo a complete RM, whereas less than 30% of those undergoing classical management (CM) do so. This registry-based study compared the 2 approaches.
Donor Hypernatremia Influences Outcomes Following Pediatric Liver Transplantation
European Journal of Pediatric Surgery : Official Journal of Austrian Association of Pediatric Surgery ... [et Al] = Zeitschrift Für Kinderchirurgie. Feb, 2013 | Pubmed ID: 23165516
With the rising demand for liver transplantations (LTs), and the shortage of organs, extended criteria including donor hypernatremia have been adopted to increase the donor pool. Currently, there is conflicting evidence on the effect of donor hypernatremia on outcomes following LT. Our aim was to investigate differences in outcome in patients receiving grafts from hypernatremic donors compared with patients receiving grafts from normonatremic donors in the pediatric population.
The Impact of Wait List Body Mass Index Changes on the Outcome After Liver Transplantation
Transplant International : Official Journal of the European Society for Organ Transplantation. Feb, 2013 | Pubmed ID: 23199077
Obesity is associated with poor health outcomes in the general population, but the evidence surrounding the effect of body mass index (BMI) on postliver transplantation survival is contradictory. The aim of this study was to assess the impact of wait list BMI and BMI changes on the outcomes after liver transplantation. Using the Scientific Registry of Transplant Recipients, we compared survival among different BMI categories and examined the impact of wait list BMI changes on post-transplantation mortality for patients undergoing liver transplantation. Cox proportional hazards multivariate regression was carried out to adjust for confounding factors. Among 38 194 recipients, underweight patients had a poorer survival compared with normal weight (HR = 1.3, 95% CI: 1.13-1.49). Conversely, overweight and mildly obese men experienced better survival rates compared with their lean counterparts (HR = 0.9, 95% CI: 0.84-0.96, and HR = 0.86, 95% CI: 0.79-0.93 respectively). Female patients gaining weight over 18.5 kg/m(2) while on the wait list showed improving outcomes (HR = 0.46, (95% CI: 0.28-0.76)) compared with those remaining underweight. This study supports the harmful impact of underweight on postliver transplant survival, and highlights the need for a specific monitoring and management of candidates with BMIs close to 18.5 kg/m(2) . Obesity does not constitute an absolute contraindication to liver transplantation.
Image of the Month. Abscess Due to a "lost" Stone During the Previous Cholecystectomy
JAMA Surgery. Jan, 2013 | Pubmed ID: 23324846
Surgical Management of Patients with Synchronous Colorectal Liver Metastasis: a Multicenter International Analysis
Journal of the American College of Surgeons. Apr, 2013 | Pubmed ID: 23433970
The goal of this study was to investigate the surgical management and outcomes of patients with primary colorectal cancer (CRC) and synchronous liver metastasis (sCRLM).
Systematic Review and Meta-analysis of Fibrin Sealants for Patients Undergoing Pancreatic Resection
HPB : the Official Journal of the International Hepato Pancreato Biliary Association. Mar, 2013 | Pubmed ID: 23461684
INTRODUCTION: Post-operative pancreatic fistula (POPF) is a common complication after partial pancreatic resection, and is associated with increased rates of sepsis, mortality and costs. The role of fibrin sealants in decreasing the risk of POPF remains debatable. The aim of this study was to evaluate the literature regarding the effectiveness of fibrin sealants in pancreatic surgery. METHODS: A comprehensive database search was conducted. Only randomized controlled trials comparing fibrin sealants with standard care were included. A meta-analysis regarding POPF, intra-abdominal collections, post-operative haemorrhage, pancreatitis and wound infections was performed according to the recommendations of the Cochrane collaboration. RESULTS: Seven studies were included, accounting for 897 patients. Compared with controls, patients receiving fibrin sealants had a pooled odds ratio (OR) of developing a POPF of 0.83 [95% confidence interval (CI): 0.6-1.14], P = 0.245. There was a trend towards a reduction in post-operative haemorrhage (OR = 0.43 (95%CI: 0.18-1.0), P = 0.05) and intra-abdominal collections (OR = 0.52 (95%CI: 0.25-1.06), P = 0.073) in those patients receiving fibrin sealants. No difference was observed in terms of mortality, wound infections, re-interventions or hospital stay. CONCLUSION: On the basis of these results, fibrin sealants cannot be recommended for routine clinical use in the setting of pancreatic resection.
Recurrence After Operative Management of Intrahepatic Cholangiocarcinoma
Surgery. Mar, 2013 | Pubmed ID: 23499016
INTRODUCTION: Data on recurrence after operation for intrahepatic cholangiocarcinoma (ICC) are limited. We sought to investigate rates and patterns of recurrence in patients after operative intervention for ICC. METHODS: We identified 301 patients who underwent operation for ICC between 1990 and 2011 from an international, multi-institutional database. Clinicopathologic data, recurrence patterns, and recurrence-free survival (RFS) were analyzed. RESULTS: During the median follow up duration of 31 months (range 1-208), 53.5% developed a recurrence. Median RFS was 20.2 months and 5-year actuarial disease-free survival, 32.1%. The most common site for initial recurrence after operation of ICC was intrahepatic (n = 98; 60.9%), followed by simultaneous intra- and extrahepatic disease (n = 30; 18.6%); 33 (21.0%) patients developed extrahepatic recurrence only as the first site of recurrence. Macrovascular invasion (hazard ratio [HR], 2.08; 95% confidence interval [CI], 1.34-3.21; P < .001), nodal metastasis (HR, 1.55; 95% CI, 1.01-2.45; P = .04), unknown nodal status (HR, 1.57; 95% CI, 1.10-2.25; P = .04), and tumor size ≥5 cm (HR, 1.84; 95% CI, 1.28-2.65; P < .001) were independently associated with increased risk of recurrence. Patients were assigned a clinical score from 0 to 3 according to the presence of these risk factors. The 5-year RFS for patients with scores of 0, 1, 2, and 3 was 61.8%, 36.2%, 19.5%, and 9.6%, respectively. CONCLUSION: Recurrence after operative intervention for ICC was common. Disease recurred both at intra- and extrahepatic sites with roughly the same frequency. Factors such as lymph node metastasis, tumor size, and vascular invasion predict highest risk of recurrence.
Integrating Sorafenib into an Algorithm for the Management of Post-transplant Hepatocellular Carcinoma Recurrence
Journal of Hepatology. Apr, 2013 | Pubmed ID: 23567081


text:
Apple's CEO, Tim Cook is disputing assertions by a Senate panel that the company avoids billions of dollars in U.S. taxes by shifting profits to foreign affiliates. (May 21)
The new 2013 Xbox comes packed with features, marketing itself as more of an entertainment console than a gaming machine. Highlights include a partnership with NFL Networks and a Halo series with Stephen Spielberg.
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John Gray, author of the best-seller "Men Are From Mars, Women Are From Venus," talks to the "CBS This Morning" co-hosts about his new book, "Work With Me: The 8 Blind Spots Between Men and Women in Business."

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Antique maps > europe > germany > Antique map of Bayern by de Jode
Bavariae Utriusque cum Inferioris tu Superioris Vera et ad Amus Sim Descriptio - de Jode ,1593.Copper engraving
Size: 35 x 46cm (13.7 x 17.9 inches)
Verso text: Latin
Condition: Old coloured.
References: Van der Krogt 3, 2650:32.
From: Speculum Orbis Terrae. Antwerpen, G. De Jode, 1593. (Van der Krogt 3, 2:02)
"In 1578 Gerard de Jode published his Speculum Orbis Terrarum, an atlas aimed at competing with the Theatrum of Ortelius. However, the latter had first been issued in 1570 and had already built a commanding market presence, and so despite de Jode's longer standing reputation the atlas did not sell very well. Only a dozen or so examples have survived. Undeterred, he made plans for another expanded edition, and upon his death in 1591 it was taken on by his son Cornelis. The Speculum Orbis Terrae of 1593 likewise did not sell well and was never reissued. Although more examples than the first edition have survived, it too is very scarce. Many of de Jode's maps are judged to be superior to those of Ortelius, both in detail and style." (Burden)
Item number: 5101
Price: 780 Euro
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