International Urogynecology Journal

, Volume 29, Issue 4, pp 505–512 | Cite as

Changes in voiding function after laparoscopic sacrocolpopexy for advanced pelvic organ prolapse: a cohort study of 76 cases

  • Xiao-Chen Song
  • Lan Zhu
  • Shuo Liang
  • Tao Xu
Original Article


Introduction and hypothesis

We evaluated changes in voiding function at 3 months after laparoscopic sacrocolpopexy (LSC) for advanced pelvic organ prolapse (POP) patients and identified risk predictors for postoperative voiding dysfunction.


Seventy-six patients with advanced POP who underwent LSC were enrolled in this retrospective cohort study. Pre- and postoperative objective voiding function was assessed by uroflowmetry plus postvoid residual (PVR) volumes. Voiding dysfunction was defined as a maximum flow rate (Qmax) < 15 ml/s, average flow rate (Qave) < 10 ml/s, or PVR > 50 ml. Statistical analyses were performed using paired-sample t tests, McNemar’s tests, and multivariate regression analyses.


Thirty patients (39%) showed evidence of voiding dysfunction preoperatively, but two thirds of these patients were asymptomatic. Voiding dysfunction decreased significantly from baseline to 3 months after surgery (39% vs. 21%, p = 0.009), including a decrease among patients with Qave < 10 ml/s (32% vs. 17%, p = 0.043) and PVR > 50 ml (24% vs. 9%, p = 0.019). Voiding difficulty decreased significantly from baseline to 3 months after surgery (32% vs. 9%, p < 0.001); urgency and urinary incontinence symptoms did not exhibit significant improvement (p > 0.05). Multivariate analysis identified Qave < 10 ml/s as the independent predictor of postoperative voiding dysfunction [p = 0.014, odds ratio (OR) = 4.77, 95% confidence interval (CI) 1.37–16.54].


Preoperative voiding dysfunction is common among patients with POP and significantly improves at 3 months following LSC. A preoperative Qave < 10 ml/s was an independent risk factor for postoperative voiding dysfunction.


Voiding function Voiding dysfunction Pelvic organ prolapse Laparoscopy sacrocolpopexy 


Compliance with ethical standards


No funding was received.

Conflict of interest

Lan Zhu: currently receiving clinical research grant from the Chinese Government under the 5-year National Project (Number 2014BAI05B02) and National Natural Science Foundation of China (Number 81370697).

Xiao-Chen Song, Shuo Liang and Tao Xu: no conflict of interests.

Institutional review board

The hospital’s ethics committee approved this study (S-K 077).


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Copyright information

© The International Urogynecological Association 2017

Authors and Affiliations

  1. 1.Department of Gynecology and ObstetricsPeking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical CollegeBeijingPeople’s Republic of China
  2. 2.Department of Epidemiology and Statistics, Institute of Basic Medical SciencesChinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical CollegeBeijingPeople’s Republic of China

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