After pelvic reconstructive surgery, the risk of postoperative urinary tract infection (UTI) is significant; intraoperative cystoscopy may contribute to this risk. Intravesical antibiotics are used in the ambulatory setting and may be applied to the surgical arena. Our objective was to evaluate the efficacy of antibiotic irrigation during intraoperative cystoscopy to prevent postoperative UTI. Methods: This double-blind randomized controlled trial enrolled 216 women undergoing cystoscopy with elective surgery for pelvic organ prolapse, stress urinary incontinence, or laparoscopic gynecologic surgery at an academic medical center 2016-2019. Participants were randomized to cystoscopic irrigation fluid type: normal saline (control) or 200,000 U polymyxin B + 40 mg neomycin solution in normal saline (antibiotic). Patients and providers who treated UTIs were blinded. The primary outcome was treatment of UTI within 6 weeks postoperatively, defined as positive culture or treatment for a symptomatic UTI. χ 2 and multivariable logistic regression analyses were performed. Results: We enrolled 216 women: 111 control (51.4%) and 105 antibiotic (48.6%). Mean age was 51.6 years. Groups were well matched in medical comorbidities and surgery type. Primary vaginal surgery was most common (n = 127, 58.8%). Overall, 10.7% of patients developed a postoperative UTI with no difference in incidence between groups: 9.9% of control (n = 11, 95% confidence interval [CI]: 4.0%-16.0%) versus 11.4% of antibiotic subjects (n = 12, 95% CI: 5.0%-18.0%), on χ 2 (p = .718) and logistic regression analysis (adjusted odds ratio, 1.3; CI: 0.53-3.16; p = .569). Conclusion: When cystoscopy is performed during elective pelvic surgery, use of antibiotic irrigation does not impact the rate of postoperative UTI.

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OBJECTIVE: To evaluate the effects of old age and frailty on complication rates after surgery for pelvic organ prolapse. METHODS: The American College of Surgeons' National Surgical Quality Improvement Program database was used to identify patients who underwent surgery for prolapse from 2010 to 2017. We compared our control group (45–64 years, index population) to those aged 65–79 years (elderly) and 80 years and older (very elderly). Frailty was assessed using the National Surgical Quality Improvement Program Modified Frailty Index-5. The primary outcome was the composite rate of serious complications and mortality. RESULTS: We analyzed 27,403 patients in the index population, 20,567 in the elderly group, and 3,088 in the very elderly group. The composite rate of serious complications in the index population was 4.5%, compared with 4.7% in the elderly group (odds ratio [OR] 1.0, 95% CI 0.9–1.1) and 9.0% in the very elderly group (OR 2.1, 95% CI 1.8–2.4). Compared with the index group, the very elderly group had notably elevated risks of cardiac complications (OR 11.9, 95% CI 6.2–23.0), stroke (OR 26.6, 95% CI 5.4–131.8), and mortality (OR 39.9, 95% CI 8.6–184.7). On multivariate logistic regression, the only age group independently associated with serious complications was the very elderly group (adjusted odds ratio [aOR] 2.01, 95% CI 1.8–2.3). The Modified Frailty Index-5 score was independently predictive of complications (aOR 1.4, 95% CI 1.1–2.0). Stratified analysis using interaction terms revealed the Modified Frailty Index-5 score to be predictive of complications in the elderly age group (aOR 2.5, 95% CI 1.3–4.6), but not in the very elderly group. CONCLUSION: Serious complications surrounding prolapse surgery increase substantially in the cohort of patients older than 80 years of age, independent of frailty and medical or surgical risk factors.