Efficacy of urine loss ratio for prognosis of urinary continence after radical prostatectomy: A retrospective cohort study in a single Japanese institution

Shogo Watari; Takaharu Ichikawa; Hiromasa Shiraishi; Moto Tokunaga; Risa Kubota; Norihiro Kusumi; Tomoyasu Tsushima

doi:https://doi.org/10.4111/icu.20220380

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자료유형: 학술저널

저자정보: Shogo Watari (National Hospital Organization Okayama Medical Center) Takaharu Ichikawa (National Hospital Organization Okayama Medical Center) Hiromasa Shiraishi (National Hospital Organization Okayama Medical Center) Moto Tokunaga (National Hospital Organization Okayama Medical Center) Risa Kubota (National Hospital Organization Okayama Medical Center) Norihiro Kusumi (National Hospital Organization Okayama Medical Center) Tomoyasu Tsushima (National Hospital Organization Okayama Medical Center)

저널정보: 대한비뇨기과학회 Investigative and Clinical Urology Investigative and Clinical Urology Vol.64 No.2

발행연도: 2023.3

수록면: 168 - 174 (7page)

DOI: https://doi.org/10.4111/icu.20220380

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Purpose: The usefulness of the urine loss ratio in the early postoperative period for prognosis of long-term urinary continence after radical prostatectomy has not been fully determined. Materials and Methods: All patients who underwent radical prostatectomy for prostate cancer at our institution between November 2015 and March 2021 were retrospectively included. We investigated the rate of continence achievement 1 year after surgery, as well as the associated risk factors for reduced continence achievement, classified by every 10% of the urine loss ratio. Results: Of the 100 patients with available urine loss ratio data, 66 achieved urinary continence. Ninety-three percent of patients with urine loss ratios of ≤10%, 40%–75% of patients with urine loss ratios of 11%–80%, and 20%–36% of patients with urine loss ratios of >80%, achieved continence. The logistic regression analysis showed that the urine loss ratio severity, body mass index (BMI) of >25 kg/m2, and smoking history were unfavorable to achieve urinary continence. A BMI of ≤25 kg/m2 was favorable for urinary continence achievement, but only up to an 80% urine loss ratio. Nonsmokers achieved continence well, even with a urine loss ratio of >80%. Conclusions: Classifying patients into three groups based on their urine loss ratios is potentially useful for urinary continence prognosis. Smoking and obesity were risk factors for continued urinary incontinence, although the prognostic accuracy was expected to improve when considering the severity of the urine loss ratio.

#Body mass index #Nonsmokers #Prostatectomy #Prostatic neoplasms #Urinary incontinence

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