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  • Title: Self-Removal of a Urinary Catheter After Urogynecologic Surgery: A Randomized Controlled Trial.
    Author: Shatkin-Margolis A, Yook E, Hill AM, Crisp CC, Yeung J, Kleeman S, Pauls RN.
    Journal: Obstet Gynecol; 2019 Nov; 134(5):1027-1036. PubMed ID: 31599827.
    Abstract:
    OBJECTIVE: To evaluate whether self-discontinuation of a transurethral catheter is noninferior to office discontinuation in patients requiring indwelling catheterization for postoperative urinary retention after pelvic reconstructive surgery. METHODS: In this randomized noninferiority trial, patients with postoperative urinary retention after pelvic reconstructive surgery were assigned to self-discontinuation or office discontinuation of their catheter 1 week after surgery. The primary outcome was a noninferiority comparison of postoperative urinary retention at 1 week. Self-discontinuation patients were instructed on home catheter removal on postoperative day 7. Office discontinuation patients underwent a standard voiding trial on postoperative day 6-8. Postoperative urinary retention at 1 week was defined as continued catheterization on postoperative day 6-8. Secondary outcomes included urinary tract infections (UTI), residual volume at 2 weeks, duration of catheter use, recurrent postoperative urinary retention, number of patient encounters, and visual analog scales (VAS) regarding patient experience. Given a known incidence of postoperative urinary retention at 1 week (16%) and 15% noninferiority margin, a sample size of 74 per group (n=148) was planned. RESULTS: From January 2017 through March 2019, 217 women were screened and 157 were analyzed: 78 self-discontinuation and 79 office discontinuation. Demographic characteristics and surgeries performed were similar. Eleven patients in each group experienced postoperative urinary retention at 1 week (14.1% self-discontinuation vs 13.9% office discontinuation, P=.97), establishing noninferiority (difference 0.2%, 95% CI: -1.00, 0.10). There were significantly fewer patient encounters with self-discontinuation (42/78, 53.8% vs 79/79, 100%). Self-discontinuation patients demonstrated better VAS scores regarding pain, ease, disruption, and likelihood to use the same method again (all P<.05). Though the rate of UTI was high, there was no difference between groups (59.0% self-discontinuation vs 66.7% office discontinuation, P=.32). Residual volume at 2 weeks, recurrent postoperative urinary retention, and duration of catheter use were also similar. CONCLUSION: Self-discontinuation of a transurethral catheter was noninferior to office-based discontinuation in the setting of postoperative urinary retention after pelvic reconstructive surgery. Self-discontinuation resulted in fewer patient encounters and improved patient experience. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, NCT02996968.
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