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Interventional treatment with autoexpandable stents in iliofemoral arterial diseases.

UNLABELLED
The importance of peripheral arterial diseases is revealed by statistical data, which showed a frequency of arterial diseases equal to the one of stable angina Traditional treatment of these patients was the surgical bypass, but an alternative therapy in these cases is the interventional treatment. Arguments for this option could be: it is less expensive, it decreases the hospitalization time, it does not require general anesthesia, and complications are less frequent and less severe. Interventional treatment is recommended especially in cases of short, isolated lesions of great vessels. During the last years, indications for interventional treatment were expanded to more difficult and complex cases, due to the advances in technology of endoluminal treatment products and the recently introduced laser angioplasty technology.


MATERIAL AND METHOD
Among the interventional techniques we apply in our clinic, we mention: percutaneous transluminal angioplasty, intraarterial stent implantation, laser angioplasty and intraarterial thrombolysis, some of them peformed with IVUS control. In a period of 14 years we examined a total number of 6,532 patients suffering from peripheral arterial obstructive diseases. In the past 3 years, in our new laboratory of interventional cardiology, new procedures have been introduced in the algorithm of interventional treatment, such as laser angioplasty. Invasive diagnosis performed in the Cardiology Clinic consisted in aortography in 746 cases and peripheral arteriography in 2035 cases. Interventional treatment consisted in percutaneous transluminal angioplasty (1.240 procedures, 756 performed in the latest 3 years), intraarterial thrombolysis (214 procedures), laser angioplasty (since June 2002-130 procedures performed) and stent implant (since 2001-61 cases). Axillar approach was also introduced in 2001 and was applied in 23% of cases.


RESULTS
We recorded a 76.5% success rate using only PTA for repermeabilisation of the lower limb arteries. Association of intraarterial thrombolysis increased the success rate to 91%. Using laser angioplasty and autoexpandable stent implantation, the success rate achieved was 100%.


CONCLUSION
Interventional treatment is an important alternative in the complex algorithm of treatment in PAOB. Intraarterial stenting significantly improves the immediate and the long term results of interventional treatment, and autoexpandable stents with thermal memory show superior results. Laser angioplasty is an adjuvant method which significantly improves the results of interventional treatment. In all these methods, a very important role plays the good cooperation of the team formed by cardiologist, angiologist and vascular surgeon.