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Related Experiment Videos

POSSUM: a scoring system for surgical audit.

G P Copeland1, D Jones, M Walters

  • 1Department of Surgery, Broadgreen Hospital, Liverpool, UK.

The British Journal of Surgery
|March 1, 1991
PubMed
Summary

The POSSUM scoring system accurately predicts patient mortality and morbidity. This validated tool aids in surgical audit by defining risk zones for better patient outcomes.

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Area of Science:

  • Surgical outcomes research
  • Health services research

Background:

  • The Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) is a scoring system used to predict surgical outcomes.
  • Previous studies have shown POSSUM to be a useful tool, but prospective validation is essential.

Purpose of the Study:

  • To prospectively validate the POSSUM scoring system.
  • To assess the accuracy of POSSUM in predicting patient mortality and morbidity.

Main Methods:

  • Prospective analysis of surgical patients.
  • Logistic regression analysis to derive predictive equations for mortality and morbidity.
  • Graphical display of risk zones.

Main Results:

  • Logistic regression analysis yielded statistically significant equations for both mortality and morbidity (P < 0.001).
  • The POSSUM scoring system produced assessments for morbidity and mortality rates that did not significantly differ from observed rates.
  • Graphical representation allowed for the definition of zones with increasing morbidity and mortality rates.

Conclusions:

  • The POSSUM scoring system is a valid and reliable tool for predicting surgical patient mortality and morbidity.
  • POSSUM can be valuable in surgical audit for risk stratification and outcome assessment.

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