Urogenital dysfunction after laparoscopic surgery for rectal or sigmoid colon cancer

Background/objective: Urogenital dysfunction is a common complication after surgery for sigmoid colon or rectal cancers and may result from various causes. Herein, we evaluated urogenital dysfunction and the associated factors after laparoscopic surgery at different follow-up times. Methods: We conducted a prospective study on 91 patients who were diagnosed with sigmoid colon and rectal cancers and underwent laparoscopic surgery during 2014-2016. Voiding and male and female sexual dysfunctions following surgery were evaluated by the International Prostate Symptom Score (IPSS), International Index of Erectile Function-5 (IIEF-5), and Female Sexual Function Index-6 (FSFI-6), respectively. Urogenital function was compared at pre-surgery and 3 and 12 months postoperatively, and factors associated with urogenital dysfunction were identified. Results: The overall urinary function after surgery was better when compared to that at pre-surgery; however, there was deterioration in both male and female sexual functions. The mean preoperative IPSS, IIEF-5, and FSFI-6 scores were 9.35, 12.18, and 6.09, respectively. The mean differences among IPSS, IIEF-5, and FSFI-6 at 12 months postoperatively and pre-surgery were-3.08 (95% confidence interval [CI]-4.77 to-1.40),-2.57 (95% CI-4.33 to-0.80), and-2.58 (95% CI-4.73 to 0.42), respectively. Multivariate analysis demonstrated that age <= 60 years (odds ratio 4.22) and postoperative complications (odds ratio 2.77) were correlated with erectile dysfunction. Conclusion: Voiding function improved after laparoscopic surgery in both sigmoid colon and rectal cancer patients. However, sexual function in both male and female patients was worse. Age <= 60 years and postoperative complications were strongly associated with male sexual dysfunction.