Analysis of the correlation factors between membranous urethral length and early recovery of urinary control function after Holmium laser enucleation of the prostate
10.3760/cma.j.cn115396-20240808-00249
- VernacularTitle:膜部尿道长度与经尿道钬激光前列腺剜除术后早期恢复尿控功能的相关因素分析
- Author:
Binbin ZHANG
1
;
Lingling DU
;
Xiaolong HE
;
Yi LI
;
Feng WANG
Author Information
1. 延安大学附属医院泌尿外科，延安 716000
- Keywords:
Prostatic hyperplasia;
Length of the membranous urethra;
Laser;
Urinary control;
Factor analysis, statistical
- From:
International Journal of Surgery
2025;52(6):384-390
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the related factors of membranous urethral length in patients with benign prostatic hyperplasia (BPH) and the early recovery of urinary control function after Holmium laser enucleation of the prostate (HoLEP).Methods:A retrospective study was conducted to analyze the case data of 124 patients with BPH admitted to the Yan′an University Affiliated Hospital from January 2017 to January 2023. According to the recovery of postoperative urinary control function, the patients were divided into the urinary control group ( n=81) and the urinary incontinence group ( n=43). The clinical data of the two groups of patients were collected, including age, body mass index, comorbidities, etc. The perioperative indicators [including prostate volume, prostatic specific antigen, membranous urethral length, international prostate symptom score (IPSS), maximum bladder capacity, degree of prostate protrusion into the bladder, etc.], the urodynamic indicators before the operation and 6 months after the operation (including maximum urine flow rate, maximum urethral pressure and bladder compliance) and the urinary control situation of the two groups of patients were observed. Measurement data were expressed as mean±standard deviation ( ± s), and the independent sample t-test was used for comparison between groups; count data were expressed as the cases and percentage, and Chi-square test was used for comparison between groups. Univariate and multivariate Logistic regression analysis were used to evaluate the influencing factors of early urinary control function recovery after HoLEP. Results:All patients successfully completed the surgery, and the follow-up was conducted 6 months after the operation as the time point. The results of univariate analysis showed that there were no statistically significant differences in age, body mass index, comorbidities, prostatic specific antigen, IPSS score and the degree of prostate protrusion into the bladder between the urinary control group and the urinary incontinence group ( P>0.05). The operation time, indwelling catheter time, prostate volume, preoperative membranous urethral length, postoperative membranous urethral length and the postoperative maximum bladder capacity of the two groups of patients all showed statistically significant differences ( P<0.05). Before the operation, there were no statistically significant differences in urodynamic indicators such as maximum urinary flow rate, maximum urethral pressure and bladder compliance between the two groups of patients ( P>0.05). Six months after the operation, the maximum urinary flow rate, the maximum urethral pressure and the bladder compliance in the two groups of patients increased compared with those before the operation. Moreover, the maximum urinary flow rate [(10.48±0.65) mL/s vs (9.41±0.53) mL/s], the maximum urethral pressure [(41.25±3.46) cmH 2O vs (38.21±3.16) cmH 2O], and bladder compliance [(32.23±3.13) cmH 2O vs (30.23±2.35) cmH 2O] were higher than those in the urinary incontinence group, and the differences were statistically significant ( P<0.05). The results of multivariate Logistic regression analysis showed that operation time ≥1 h, indwelling catheter time ≥5 d, prostate volume ≥60 mL, preoperative membranous urethral length <14 mm, and postoperative membranous urethral length <13 mm were independent risk factors for the recovery of early urinary control function after HoLEP ( OR>1, P<0.05), the maximum bladder capacity after surgery was an independent protective factor for the recovery of early postoperative urinary control function ( OR<1, P<0.05). Conclusions:Preoperative membranous urethral length <14 mm and postoperative membranous urethral length <13 mm are risk factors affecting the recovery of early urinary control function after HoLEP in patients with BPH. A longer membranous urethral length can reduce the risk of postoperative complications and accelerate the recovery of urinary control function in patients.
