Early risk factors for the formation of pancreatic pseudocysts after severe acute pancreatitis

Abstract

Objective To investigate the early risk factors of the formation of pancreatic pseudocysts after severe acute pancreatitis. Methods One hundred patients with severe acute pancreatitis admitted from Jul. 2005 to Mar. 2007 were included. Clinical and laboratory data within 24 hours of admission and radiological tests of chest, abdominal dynamic contrast-enhanced computed tomography and abdominal ultrasound within 3 days after admission were analyzed and multiple stepwise logistic regression analysis was performed. Results 30 patients developed pancreatic pseudocysts and the incidence of pancreatic pseudocysts in the clinical course of severe acute pancreatitis was 30%. There were significant difference between group A (pancreatic pseudocyst group) and group B (non-pancreatic pseudocyst group) in serum albumin[(33.23±4.810g/L vs (36.07±4.92)g/L], CT severity index (CTSI) (3~6 vs 2~4 points) ,length of hospital stay[(26.83±19.760) day vs (14.51±7.71) days, (P<0.05)]. Meanwhile, there were no significant differences between the two groups in age, gender proportion, body temperature, heart rate, breath rate and mean arterial pressure in admission,urine volume within 24 hours, early defaecation within 24 hours after admission, blood routine, liver function, kidney function, electrolytes, blood cholesterol and triglycerol, PT, APTr, arterial blood gas analysis, blood amylase, C-reaction protein, APACHE Ⅱ, RANSON scoring, early ascites and pleural effusion. But multiple stepwise logistic regression analysis showed that the serum albumin and CTSI were associated with the formation of pancreatic pseudocysts after severe acute pancreatids. Conclusions The serum albumin and CTSI were the independent risk factors of the formation of pancreatic pseudocysts after severe acute pancreatitis. Key words: Pancreatitis, acute neerotizing; Pancreatic pseudocysts; Regression analysis; Risk factors