Key result
POSSUM and P-POSSUM scores moderately predict 30-day mortality but overestimate risk in emergency abdominal surgery.
Why the study?
POSSUM and P-POSSUM have been recommended for predicting postoperative mortality and morbidity, but their efficacy and accuracy in patients undergoing emergency abdominal surgeries required evaluation.
Do POSSUM and P-POSSUM scoring systems accurately predict postoperative mortality and morbidity in patients undergoing emergency abdominal surgeries?
Population
150 patients undergoing emergency abdominal surgery in a tertiary care hospital in Bhubaneswar
Comparison
POSSUM and P-POSSUM predicted outcomes vs observed outcomes
Follow-up
30 days
Authors
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Overestimation warrants cautious use in risk stratification; leaves open need for recalibration or updated models in emergency abdominal surgery.
Observational (n=150)
No
Do POSSUM and P-POSSUM scoring systems accurately predict postoperative mortality and morbidity in patients undergoing emergency abdominal surgeries?
Effect estimate: O:E ratio 0.91 for POSSUM
Absolute Event Rate: 15.3% vs 14%
p-value: p=<0.05
POSSUM and P-POSSUM scoring systems provide reasonably good predictions of morbidity and mortality in patients undergoing emergency abdominal surgery.
Shekar et al. (2023) conducted an observational in Emergency abdominal surgery (n=150). POSSUM and P-POSSUM scoring systems vs. Actual observed outcomes was evaluated on 30-day postoperative mortality (O:E ratio 0.91 for POSSUM, p=<0.05). POSSUM and P-POSSUM scoring systems moderately predicted 30-day mortality (AUC 0.818 and 0.836, respectively) but significantly overestimated both morbidity and mortality (p < 0.05) in patients undergoing emergency abdominal surgery.
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