Do females have worse surgical outcomes after radical cystectomy? Impact of gender on 30-day complications in a national cohort.
402 Background:: Men have higher rates of bladder cancer and are more likely to undergo cystectomy than women, yet women seem to have worse oncologic outcomes. This is attributed to biologic factors including adverse histologic variants and social factors including delay in diagnosis. There is early evidence that women also have worse surgical outcomes. We further examined the role of gender in 30-day perioperative outcomes following radical cystectomies in a national cohort. Methods: We examined the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) from 2012 to 2016. The database was searched for CPT codes reflecting radical cystectomy and a diagnosis of “cancer of the bladder.” Frailty was estimated by the modified frailty index (functional status, diabetes, chronic obstructive pulmonary disorder, history of chronic heart failure, and hypertension requiring medication.) To compare demographic and perioperative characteristics between genders, Chi-Square analyses were performed for categorical variables, student’s t test to compare averages, and the Wilcoxon rank sum test for operative time and length of stay (LOS). Results: 4,681 radical cystectomies were identified including 842 (18.0%) females. Of the female cohort, average age was 68.6 (+/-11.2 years), 77.3% was Caucasian and 278 (33%) had a BMI of at least 30. There were no differences appreciated between genders with regards to age, average ASA score, frailty, or minimally-invasive approach (all p=NS). Compared to males, female gender was associated with longer operative time (350 vs. 336 min, p<0.009), length of stay (LOS) (8 vs 7, p<0.001) and lower rates of discharge to home (79.9% vs 87.0%, p<0.0001). Reoperation (4.8% vs. 6.0%), readmission (22.2% vs 20.6%), and death within 30 days (1.9% vs. 2.0%) were similar. Clavien 3 or greater was also similar among gender (Table). Conclusions: Female patients comprise a minority of radical cystectomies with slightly longer LOS and less home discharge than men, yet 30-day major complications, reoperation and mortality appear similar. [Table: see text]