Urinary dysfunction (UD) remains a significant complication of rectal cancer surgery. In modern surgical treatment for rectal cancer, multiple operative approaches are used. Such approaches include open, laparoscopic, and robotic-assisted surgery; and multiple procedures, including anterior, intersphincteric, and abdominoperineal resection. Thus, modern surgical treatments for rectal cancer have diversified. This study aimed to identify risk factors for early UD (EUD) after total mesorectal excision (TME) and to explore the methods for decreasing postoperative EUD in diverse surgical treatments for rectal cancer.
In our retrospective cohort study, we enrolled patients with lower rectal cancer who underwent TME alone at a single high-volume cancer center between 2010 and 2017. EUD was defined as the presence of ≥ 50 mL residual urine volume. Multivariate analysis was performed to determine clinicopathological factors significantly associated with postoperative EUD.
Of a total of 337 eligible patients, 32 patients (10%) had postoperative EUD. Multivariate analysis revealed that only the operative approach (laparoscopic surgery: odds ratio [OR], 8.93; 95% confidence interval [CI], 2.94–27.14, open surgery: OR, 11.55; 95% CI 2.10–63.83) was significantly associated with an increase in postoperative EUD. Robotic-assisted surgery was associated with significant reduction in postoperative EUD.
Only robotic-assisted surgery was inversely correlated with postoperative EUD. Robotic-assisted surgery may be a useful approach to protect urinary function in lower rectal cancer surgery.
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Drs. Yusuke Yamaoka, Hiroyasu Kagawa, Akio Shiomi, Yushi Yamakawa, Hitoshi Hino, Shoichi Manabe, and Yusuke Kinugasa and have no conflicts of interest or financial ties to disclose.
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Yamaoka, Y., Kagawa, H., Shiomi, A. et al. Robotic-assisted surgery may be a useful approach to protect urinary function in the modern era of diverse surgical approaches for rectal cancer. Surg Endosc 35, 1317–1323 (2021). https://doi.org/10.1007/s00464-020-07509-4
- Rectal cancer
- Mesorectal excision
- Urinary dysfunction
- Robotic-assisted surgery
- Laparoscopic surgery
- Open surgery