• Kyle J Wohlrab, Elisabeth A Erekson, Nicole B Korbly, Calin D Drimbarean, Charles R Rardin, and Vivian W Sung.
• Division of Urogynecology and Reconstructive Pelvic Surgery, Department of Obstetrics and Gynecology, Alpert Medical School at Brown University, Providence, RI, USA. kwohlrab@wihri.org
• Am. J. Obstet. Gynecol. 2009 May 1;200(5):571.e1-5.

ObjectiveThe objective of the study was to estimate the association between regional anesthesia and acute postoperative urinary retention in women undergoing outpatient midurethral sling procedures.Study DesignWe performed a retrospective cohort study of women undergoing outpatient midurethral sling procedures. Exposure was defined as the type of anesthesia, categorized as regional (spinal or combined spinal/epidural) or nonregional (general endotracheal, monitored anesthesia care with sedation, or local). The outcome, acute postoperative urinary retention, was defined as a failed voiding trial prior to discharge.ResultsA total of 131 women met our inclusion criteria. Forty-two women (32%) had regional anesthesia and 89 (68%) women had non-regional anesthesia. Overall, 48 women (36.6%) had acute postoperative urinary retention. Women who had regional anesthesia had an increased odds (adjusted odds ratio, 4.4; 95% confidence interval, 1.9-10.2) of acute postoperative urinary retention compared with women receiving nonregional anesthesia.ConclusionRegional anesthesia is a risk factor for acute postoperative urinary retention following outpatient midurethral slings.

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