Prophylactic Administration of Urinary Trypsin Inhibitor Prevents Postoperative Hyperamylasemia after R2 Gastrectomy in Patients with Gastric Cancer

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Abstract
The purpose of this prospective randomized study was to determine whether prophylactic administration of urinary trypsin inhibitor prevents postoperative damage to the pancreas caused by R2 gastrectomy in patients with gastric cancer, by analyzing related enzyme activities. Among the 22 patients who underwent distal partial gastrectomy together with R2 lymphadenectomy, 12 were given the drug for 3 days postoperatively, and 10 no therapeutic agent. These groups were otherwise comparable. Postoperatively, the control patients had significantly higher levels of total amylase activity in the serum and P-type amylase when compared to the preoperative data. These amylase activities almost remained at the preoperative level in those given the drug. When the ratio of increase in enzyme activities (postoperative value divided by preoperative value) were compared, on the 7th postoperative day, total amylase activity in the serum and P-type amylase were significantly different between the two groups (p

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