Evaluation and validation of Physiological and Operative Severity Score for the enumeration of mortality and morbidity and Portsmouth‐POSSUM scores in predicting morbidity and mortality in patients undergoing head and neck cancer surgeries

Abstract

Background Identification of risk factors for perioperative complications helps in the prognostication. We wanted to determine whether Physiological and Operative Severity Score for the enumeration of mortality and morbidity (POSSUM) and Portsmouth‐POSSUM (P‐POSSUM) can be used in patients undergoing head and neck oncosurgery. Methods We conducted a retrospective analysis of 1265 patients after they had major head and neck oncosurgeries. Demographic, surgical and outcome data was collected. We separately analyzed data for patients who had undergone cancer surgery for oral cavity, pharynx, and larynx. We calculated the POSSUM and P‐POSSUM scores. Results POSSUM scoring system had moderate discrimination (AUC = 0.61) and good calibration (P = .36) for the entire study cohort and in the subgroup. Since there were no deaths in the entire cohort, we were not able to check predictive ability of the scores, for mortality. Conclusions We found that POSSUM had moderate discrimination and good calibration for morbidity prediction in head and neck cancer surgeries, as well as for the selected subgroup.

Prediction of Mortality in Patients After Oncologic Gastrointestinal Surgery: Comparison of the ASA, APACHE II, and POSSUM Scoring Systems

“…Our study showed that a higher POSSUM score matched with higher mortality and was also statically eloquent. Karan et al stated that the POSSUM score was good at predicting morbidity [21]. However, they were not able to check the usefulness of the scores for mortality because no death occurred.…”