OBJECTIVE: To compare POSSUM, p-POSSUM, and cr-POSSUM-predicted mortalities with the observed postoperative mortality in patients undergoing elective sigmoid colectomy for diverticular disease (n=121) or carcinoma (n=120). MATERIAL AND METHODS: The physiologic and operative severity score for the enumeration of mortality and morbidity (POSSUM) was used to identify patient- or disease-related risk factors and to calculate expected mortalities. RESULTS: Patients with carcinoma had significantly higher POSSUM scores, but the observed mortality (1.7%) was lower than that in the diverticular disease group (3.3%). In the carcinoma group, mortality was over-predicted by all the POSSUM systems. In diverticular disease, POSSUM over-predicted mortality while p-POSSUM and cr-POSSUM under-predicted mortality. In the whole group, POSSUM over-predicted mortality. P-POSSUM and cr-POSSUM predicted mortality accurately: observed:expected (O:E) ratio 0.83. Replacing the score for malignancy with a minimum score of 1 gave overall O:E ratios of 0.37 (POSSUM), 1.04 (p-POSSUM), and 0.93 (cr-POSSUM). CONCLUSIONS: In a group of patients who underwent elective resection of the sigmoid colon for carcinoma or diverticular disease, postoperative mortality was predicted accurately by p-Possum and cr-POSSUM, especially when used without a score for malignancy. None of the POSSUM scores were predictive of disease-specific mortality.
OBJECTIVE: To compare POSSUM, p-POSSUM, and cr-POSSUM-predicted mortalities with the observed postoperative mortality in patients undergoing elective sigmoid colectomy for diverticular disease (n=121) or carcinoma (n=120). MATERIAL AND METHODS: The physiologic and operative severity score for the enumeration of mortality and morbidity (POSSUM) was used to identify patient- or disease-related risk factors and to calculate expected mortalities. RESULTS:Patients with carcinoma had significantly higher POSSUM scores, but the observed mortality (1.7%) was lower than that in the diverticular disease group (3.3%). In the carcinoma group, mortality was over-predicted by all the POSSUM systems. In diverticular disease, POSSUM over-predicted mortality while p-POSSUM and cr-POSSUM under-predicted mortality. In the whole group, POSSUM over-predicted mortality. P-POSSUM and cr-POSSUM predicted mortality accurately: observed:expected (O:E) ratio 0.83. Replacing the score for malignancy with a minimum score of 1 gave overall O:E ratios of 0.37 (POSSUM), 1.04 (p-POSSUM), and 0.93 (cr-POSSUM). CONCLUSIONS: In a group of patients who underwent elective resection of the sigmoid colon for carcinoma or diverticular disease, postoperative mortality was predicted accurately by p-Possum and cr-POSSUM, especially when used without a score for malignancy. None of the POSSUM scores were predictive of disease-specific mortality.
Authors: Féthi Merad; Gabriel Baron; Blandine Pasquet; Henry Hennet; Gérard Kohlmann; Fred Warlin; Bruno Desrousseaux; Abe Fingerhut; Philippe Ravaud; Jean-Marie Hay Journal: World J Surg Date: 2012-10 Impact factor: 3.352
Authors: S Wilkins; K Oliva; E Chowdhury; B Ruggiero; A Bennett; E J Andrews; O Dent; P Chapuis; C Platell; C M Reid; P J McMurrick Journal: BJS Open Date: 2020-09-28
Authors: Pascal H E Teeuwen; A J A Bremers; J M M Groenewoud; C J H M van Laarhoven; R P Bleichrodt Journal: J Gastrointest Surg Date: 2010-10-09 Impact factor: 3.452