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Prospective comparison of POSSUM and P‐POSSUM with clinical assessment of mortality following emergency surgery

Background:  Tools to accurately estimate the risk of death following emergency surgery are useful adjuncts to informed consent and clinical decisions. This prospective study compared the Physiological and Operative Severity Score for the Enumeration of Mortality and Morbidity (POSSUM) and Portsmouth POSSUM (P‐POSSUM) scoring systems with clinical judgement in predicting mortality from emergency surgery.