✦ LIBER ✦

Evaluation of O-POSSUM in predicting in-hospital mortality after resection for oesophageal cancer

✍ Scribed by S. M. Lagarde; A. K. D. Maris; S. M. M. de Castro; O. R. C. Busch; H. Obertop; J. J. B. van Lanschot

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 110 KB
Volume: 94
Category: Article
ISSN: 0007-1323
DOI: 10.1002/bjs.5850

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✦ Synopsis

Abstract

Background

The aims of the present study were to validate the Physiological and Operative Severity Score for the enUmeration of Mortality adjusted for oesophagogastric surgery (O-POSSUM).

Methods

Data on patients who underwent potentially curative oesophagectomy in a tertiary referral centre for adenocarcinoma or squamous cell carcinoma of the oesophagus were analysed. The in-hospital mortality predicted by O-POSSUM was compared with the actual value by linear analysis.

Results

Twenty-four (3·6 per cent) of 663 patients died in hospital. The observed : predicted ratio for in-hospital mortality was 0·29. The model had a poor fit (P < 0·001). The area under the receiver–operator characteristic curve was 0·60 (95 per cent confidence interval 0·47 to 0·72); P = 0·113). O-POSSUM score was not related to the severity of complications.

Conclusion

O-POSSUM overpredicted in-hospital mortality threefold and could not identify patients at higher risk of death. O-POSSUM needs substantial modification before it can be used for comparison of treatment outcomes between centres.

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