Our study will focus on 108 patients requiring hepatic resection for colorectal cancer metastasis or primary hepatocellular carcinoma. These patients will then be randomized into two 54 patient arms: the control arm of conventional resuscitation only and the experimental arm of conventional resuscitation with DPR immediately post operatively. Patient exclusion criteria will be: 1) unable to obtain proper consent for enrollment, 2) age less than 18 years or greater than 75 years, 3) chronic renal failure, cirrhosis, or congestive heart failure, 4) patients requiring portal venous embolization prior to resection, or 5) women who are pregnant or lactating/breast feeding. A pregnancy test (urine or blood) will be done for female subjects of child bearing potential the day prior or the morning of surgery per the usual standard of care pre-op labs.