P-POSSUM IN PREDICTING DEATH IN PATIENTS UNDERGOING EMERGENCY LAPARATOMY

Abstract

P-POSSUM is a simple scoring system, described and validated in developed countries 
like UK. A total of 150 emergency laparotomies were performed. The risk of 
complication and death was calculated using P-POSSUM equations. The estimated 
rates were compared with observed rates using both linear and exponential methods of 
analysis. P- POSSUM of the linear method predicted accurate number of deaths (19 
patients) with O:E ratio of 1. When exponential method used it predicted similar 
number of deaths (20 patients) with O:E ratio of 0.95 with no significant difference.