The resurgence of methenamine hippurate in the prevention of recurrent UTIs in women- a systematic review

Author:

Kale Saurabh1,Somani Bhaskar K.2

Affiliation:

1. Clinical Fellow

2. Professor and Consultant Urological Surgeon, University Hospital Southampton NHS Trust, Southampton, UK

Abstract

Purpose of review Recurrent urinary tract infections (rUTIs) in women are prevalent and difficult to manage. The rise of antimicrobial resistance makes it prudent to re-investigate the role of nonantimicrobial agents in the prevention of RUTIs. We wanted to evaluate randomised controlled trials (RCTs) that employed methenamine hippurate as a therapy or prophylactic in adult women with rUTIs. Recent findings Relevant databases were searched for RCTs using Cochrane methodology and reporting items for systematic reviews and meta-analyses (PRISMA) checklist, comparing the efficacy of methenamine hippurate to either an antibiotic or a placebo for the prophylaxis of rUTI in women. Six trials involving 322 patients taking methenamine and 419 patients receiving antibiotics in total were evaluated. The duration of the trials ranged from 12–24 months. Studies reported that methenamine was effective in extending the mean period between symptomatic episodes of urinary tract infections (UTIs), keeping the patient symptom- and infection-free, and reducing the number of UTI episodes. The newer studies reported that methenamine reduced the incidence rates of recurrent UTIs and was not inferior to the antibiotic in this regard. Summary The outcomes of methenamine hippurate were found to be at par with the antibiotic prophylaxis. It might serve as a suitable alternative nonantibiotic prophylaxis for females with rUTIs.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Urology

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