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. 2020 Nov;39(8):2455-2462.
doi: 10.1002/nau.24516. Epub 2020 Sep 17.

The role of perioperative medications in urinary retention following midurethral sling

Eric G Katz  1 , Kristian D Stensland  1 , Kareem Alazem  1 , Lara S MacLachlan  1
Affiliations

The role of perioperative medications in urinary retention following midurethral sling

Eric G Katz et al. Neurourol Urodyn. 2020 Nov.

Abstract

Aims: Postoperative urinary retention (PUR) is a known complication of midurethral sling (MUS) placement. The use of certain perioperative medications may influence the risk of this complication. This study aimed to investigate the association of perioperative medications with urinary retention after MUS.

Methods: This was a retrospective study of women undergoing MUS placement for stress urinary incontinence by a fellowship-trained urologic surgeon between 2015 and 2018, under approval by the Institutional Review Board. Both retropubic and transobturator approaches were included. All patients underwent an active void trial following surgery. Intraoperative medications given by the anesthesia team were retrospectively noted. The Fisher's exact test was used to compare the association of PUR with categorical variables.

Results: A total of 82 patients were included, 17 (21%) of whom failed postoperative void trial due to urinary retention. Of 25 patients receiving perioperative scopolamine, 40% failed the postoperative void trial, compared to 12% of patients not receiving scopolamine (p = .048). Groups were then stratified based on scopolamine use due to the observed independent association with PUR. Subgroup analysis revealed a stronger association of postoperative retention with scopolamine in patients undergoing concomitant prolapse surgery. Notably, retention rate and scopolamine use were similar whether patients underwent sling placement alone or in combination with prolapse surgery. Rate of retention was also higher for retropubic versus transobturator slings (36% vs. 9%; p = .005).

Conclusions: Perioperative scopolamine may be associated with an increased risk of postoperative urinary retention following MUS, especially in the setting of a concomitant prolapse surgery.

Keywords: female sling; pelvic organ prolapse; scopolamine; stress incontinence; urinary retention.

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