Elderly POSSUM, a dedicated score for prediction of mortality and morbidity after major colorectal surgery in older patients

✍ Scribed by P. Tran Ba Loc; S. Tezenas du Montcel; J. J. Duron; H. Levard; B. Suc; B. Descottes; B. Desrousseaux; J. M. Hay

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 135 KB
• Volume: 97
• Category: Article
• ISSN: 0007-1323
• DOI: 10.1002/bjs.6903

✦ Synopsis

Abstract

Background

Several scores have been developed to evaluate surgical unit mortality and morbidity. The Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) and derivatives use preoperative and intraoperative factors, whereas the Surgical Risk Scale (SRS) and Association Française de Chirurgie (AFC) score use four simple factors. To allow for advanced age in patients undergoing colorectal surgery, a dedicated score—the Elderly (E) POSSUM—has been developed and its accuracy compared with these scores.

Methods

From 2002 to 2004, 1186 elderly patients, at least 65 years old, undergoing major colorectal surgery in France were enrolled. Accuracy was assessed by calculating the area under the receiver operating characteristic curve (AUC) (discrimination) and calibration.

Results

The mortality and morbidity rates were 9 and 41 per cent respectively. The E-POSSUM had both a good discrimination (AUC = 0·86) and good calibration (P = 0·178) in predicting mortality and a reasonable discrimination (AUC = 0·77) and good calibration (P = 0·166) in predicting morbidity. The E-POSSUM was significantly better at predicting mortality and morbidity than the AFC score (Pc = 0·014 and Pc < 0·001 respectively).

Conclusion

The E-POSSUM is a good tool for predicting mortality, and the only efficient scoring system for predicting morbidity after major colorectal surgery in the elderly.