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. 2024 Jan;17(1):e13243.
doi: 10.1111/ases.13243. Epub 2023 Sep 22.

Variations in predictors for urinary continence recovery at different time periods following robot-assisted radical prostatectomy

Masahiro Nitta  1 , Moeko Tazawa  1 , Kumpei Takahashi  1 , Jun Naruse  1 , Kazuya Oda  1 , Tatsuo Kano  1 , Takato Uchida  1 , Tatsuya Umemoto  1 , Takahiro Ogawa  1 , Yoshiaki Kawamura  1 , Masanori Hasegawa  1 , Sunao Shoji  1 , Akira Miyajima  1
Affiliations

Variations in predictors for urinary continence recovery at different time periods following robot-assisted radical prostatectomy

Masahiro Nitta et al. Asian J Endosc Surg. 2024 Jan.

Abstract

Introduction: Urinary dysfunctions are common sequelae following prostatectomy. This study aimed to discover factors that can predict urinary continence recovery at various time periods after robot-assisted laparoscopic radical prostatectomy (RARP).

Methods: This was a retrospective analysis of data of 419 consecutive patients. Only patients followed up for ≥1 year were enrolled. An answer of "zero pad per day" in the Expanded Prostate Cancer Index Composite urinary assessment (question 5) denoted continence. Possible predictors of urinary continence recovery were evaluated at 3, 3-6, and 6-12 months after the operation.

Results: Continence rates at 3, 6, and 12 months after RARP were 12.9%, 21.2%, and 40.2%, respectively. The proportions of patients using 0-1 pad were 54.2%, 75.7%, and 83.1% at 3, 6, and 12 months after RARP, respectively. Multivariable regression analysis revealed that a membranous urethral length (MUL) ≥11 mm was significantly associated with urinary continence recovery both within 3 months (odds ratio: 0.367, P = .003) and 3-6 months (odds ratio: 0.354, P = .001) after RARP. The analysis also revealed that, in patients with urinary continence at 6 months, a large prostate volume (odds ratio: 1.973, P = .044) and a high body mass index (odds ratio: 2.874, P = .027) were negative predictors of urinary continence recovery within 6-12 months.

Conclusion: A longer MUL was linked to urinary continence recovery within 6 months following RARP, whereas a large prostate volume and a high body mass index were adverse predictors of urinary continence recovery beyond 6 months.

Keywords: membranous urethra length; robot-assisted laparoscopic radical prostatectomy; urinary continence.

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References

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