Aim: The purpose of this article is to analyze and validate the CR-POSSUM score in patients with peritonitis of colonic origin, considering mortality forecasting ability.

Methods: We conducted a prospective longitudinal study of the Surgery Clinic in the Emergency Hospital in Bucharest in January 2008-December 2011. Patients operated on for peritonitis of colonic origin were included in this study. The prognostic CR-POSSUM scores and Mannheim peritonitis index were calculated by using data from observation sheets. There have been a number of deaths and overall mortality was calculated.

Results: There were 58 patients with abdominal sepsis, hospitalized and operated, registering a 17.24% mortality rate. Time from admission until the time of operation was divided between up to 24 hours and over 24 hours, recording 27 (46.55%) cases operated <24 hours and 31 (53, 45%) of patients operated> for 24 hours. Operative severity scores were calculated by taking into account data provided by each surgeon on intraoperative appearance.

Conclusions: The results of this study demonstrated that both CR-POSSUM score and Mannheim have a prognostic value for patients with abdominal sepsis in colonic peritonitis, both being surgery scores.