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Am. J. Obstet. Gynecol. · Nov 2017
Randomized Controlled TrialEvaluating ureteral patency in the post-indigo carmine era: a randomized controlled trial.
- Cara L Grimes, Sonali Patankar, Timothy Ryntz, Nisha Philip, Khara Simpson, Mireille Truong, Constance Young, Arnold Advincula, Obianuju S Madueke-Laveaux, Ryan Walters, Cande V Ananth, and Jin Hee Kim.
- Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, NY. Electronic address: clg2173@columbia.edu.
- Am. J. Obstet. Gynecol. 2017 Nov 1; 217 (5): 601.e1-601.e10.
BackgroundMany gynecologic, urologic, and pelvic reconstructive surgeries require accurate intraoperative evaluation of ureteral patency.ObjectiveWe performed a randomized controlled trial to compare surgeon satisfaction with 4 methods of evaluating ureteral patency during cystoscopy at the time of benign gynecologic or pelvic reconstructive surgery: oral phenazopyridine, intravenous sodium fluorescein, mannitol bladder distention, and normal saline bladder distention.Study DesignWe conducted an unblinded randomized controlled trial of the method used to evaluate ureteral patency during cystoscopy at time of benign gynecologic or pelvic reconstructive surgery. Subjects were randomized to receive 200 mg oral phenazopyridine, 25 mg intravenous sodium fluorescein, mannitol bladder distention, or normal saline bladder distention during cystoscopy. The primary outcome was surgeon satisfaction with the method, assessed via a 100-mm visual analog scale with 0 indicating strong agreement and 100 indicating strong disagreement with the statement. Secondary outcomes included comparing visual analog scale responses about ease of each method and visualization of ureteral jets, bladder mucosa and urethra, and operative information, including time to surgeon confidence in the ureteral jets. Adverse events were evaluated for at least 6 weeks after the surgical procedure, and through the end of the study. All statistical analyses were based on the intent-to-treat principle, and comparisons were 2-tailed.ResultsIn all, 130 subjects were randomized to phenazopyridine (n = 33), sodium fluorescein (n = 32), mannitol (n = 32), or normal saline (n = 33). At randomization, patient characteristics were similar across groups. With regard to the primary outcome, mannitol was the method that physicians found most satisfactory on a visual analog scale. The median (range) scores for physicians assessing ureteral patency were 48 (0-83), 20 (0-82), 0 (0-44), and 23 (3-96) mm for phenazopyridine, sodium fluorescein, mannitol, and normal saline, respectively (P < .001). Surgery length, cystoscopy length, and time to surgeon confidence in visualization of ureteral jets were not different across the 4 randomized groups. During the 189-day follow-up, no differences in adverse events were seen among the groups, including urinary tract infections.ConclusionThe use of mannitol during cystoscopy to assess ureteral patency provided surgeons with the most overall satisfaction, ease of use, and superior visualization without affecting surgery or cystoscopy times. There were no differences in adverse events, including incidence of urinary tract infections.Copyright © 2017 Elsevier Inc. All rights reserved.
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