Thirty-Day Mortality After Primary Cytoreductive Surgery for Advanced Ovarian Cancer in the Elderly

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OBJECTIVE:To identify factors associated with increased 30-day mortality after advanced ovarian cancer debulking among elderly women.METHODS:A database linking Medicare records with the Surveillance, Epidemiology, and End Results (SEER) data was used to identify a cohort of 5,475 women aged 65 and older who had primary debulking surgery for stage III or IV epithelial ovarian cancer (diagnosed 1995–2005). Women were stratified by acuity of hospital admission. Multivariable analysis was performed to identify patient-related and treatment-related variables associated with 30-day mortality.RESULTS:Five thousand four hundred seventy-five women had surgery for advanced ovarian cancer, and the overall 30-day mortality was 8.2%. Women admitted electively had a 30-day mortality of 5.6% (251 of 4,517), and those admitted emergently had a 30-day mortality of 20.1% (168 of 835). Advancing age, increasing stage, and increasing comorbidity score were all associated with an increase in 30-day mortality (all P<.05) among elective admissions. A group of women at high risk admitted electively included those aged 75 or older with stage IV disease and women aged 75 or older with stage III disease and a comorbidity score of 1 or more. This group had an observed 30-day mortality of 12.7% (95% confidence interval 10.7%–14.9%).CONCLUSION:Age, cancer stage, and comorbidity scores may be helpful to stratify electively admitted patients based on predicted postoperative mortality. If validated in a prospective cohort, then these factors may help identify women who may benefit from alternative treatment strategies.LEVEL OF EVIDENCE:II

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