Is Hysterectomy a Risk Factor for Urinary Retention? A Retrospective Matched Case Control Study

Abstract

Compare the rates of urinary retention in patients undergoing endoscopic hysterectomy with those of patients undergoing nonhysterectomy endoscopic gynecologic surgery. Retrospective case control study matched by operative time. Academic medical center. All patients undergoing endoscopic gynecologic surgeries between January 2013 and December 2018. Outpatient endoscopic gynecologic surgery. A total of 200 endoscopic hysterectomy cases were matched to endoscopic nonhysterectomy gynecologic surgery controls in a 1:1 ratio. The differences in baseline and operative characteristics between the 2 groups included age (48.6 years vs 45.7 years, p = .04), perioperative opioid administration (morphine milligram equivalents, 11.6 mg vs 7.6 mg, p = .01), and estimated blood loss (64.1 mL vs 31.8 mL, p = .001). The rate of urinary retention in the hysterectomy group was double that in the nonhysterectomy group (26.5% vs 13%, p = .01). In the hysterectomy group, age, perioperative opioids, operative time, and estimated blood loss did not differ between those who failed and those who passed the void trial. In the nonhysterectomy group, only operative time was significantly longer in those who failed the void trial (108 minutes vs 94.3 minutes, p = .04). After adjusting for perioperative opioid use and operative time, the relative risk of urinary retention in the hysterectomy group was 2.3 (p = .002, 95% confidence interval, 1.38-3.98). Hysterectomy appears to be an independent and major factor contributing to postoperative urinary retention. When compared with nonhysterectomy gynecologic surgical controls with similar operative times, the rate of urinary retention in patients who underwent hysterectomy was doubled.