Comparative Evaluation of Mortality Risk Prediction Tools After Emergency Laparotomy

BACKGROUND: Accurate pre-operative prediction of mortality after emergency laparotomy (EL) is essential as it may facilitate shared decision-making. The aim of our study was to compare the prognostic accuracy of three risk prediction tools following EL. METHODS: ≥ 0.40, excellent; ≥ 0.30, good; ≥ 0.20, moderate; < 0.20, poor) and accuracy was evaluated with the c-statistic (< 1.0, excellent; < 0.90, good; < 0.80, fair; < 0.70, poor). RESULTS: = 0.38). CONCLUSIONS: P-NELA was most accurate in predicting 30-day mortality after EL, while NZRISK performed least reliably in our cohort. These findings highlight the importance of providing external validation for different risk prediction tools within diverse populations to improve peri-operative planning.

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Publication Details

Journal
ANZ Journal of Surgery
Published
2026-05-10
DOI
https://doi.org/10.1111/ans.70730
Primary Topic
Cardiac, Anesthesia and Surgical Outcomes
Type
article
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article

Comparative Evaluation of Mortality Risk Prediction Tools After Emergency Laparotomy

Sameer Bhat, Tony Lin, Ahmed Barazanchi, Campbell Hodges et al.
ANZ Journal of Surgery
Cardiac, Anesthesia and Surgical Outcomes
article

Comparative Evaluation of Mortality Risk Prediction Tools After Emergency Laparotomy

Sameer Bhat, Tony Lin, Ahmed Barazanchi, Campbell Hodges, Wiremu MacFater, Shauna O'Brien
article en

Abstract

BACKGROUND: Accurate pre-operative prediction of mortality after emergency laparotomy (EL) is essential as it may facilitate shared decision-making. The aim of our study was to compare the prognostic accuracy of three risk prediction tools following EL. METHODS: ≥ 0.40, excellent; ≥ 0.30, good; ≥ 0.20, moderate; < 0.20, poor) and accuracy was evaluated with the c-statistic (< 1.0, excellent; < 0.90, good; < 0.80, fair; < 0.70, poor). RESULTS: = 0.38). CONCLUSIONS: P-NELA was most accurate in predicting 30-day mortality after EL, while NZRISK performed least reliably in our cohort. These findings highlight the importance of providing external validation for different risk prediction tools within diverse populations to improve peri-operative planning.

ANZ Journal of Surgery
University of Auckland (NZ), Wellington Hospital (NZ), Auckland City Hospital (NZ), Dunedin Public Hospital (NZ), Auckland University of Technology (NZ), Hutt Hospital (NZ), Capital and Coast District Health Board (NZ), University of Otago (NZ)
Good health and well-being
Openalex Percentile: Top 5%
Cardiac, Anesthesia and Surgical Outcomes
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Comparative Evaluation of Mortality Risk Prediction Tools After Emergency Laparotomy — Sameer Bhat, Tony Lin, et al. · ANZ Journal of Surgery (2026) | TGRS Research Map | TGRS