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Surgical interventions for women with stress urinary incontinence: A systematic review and network meta-analysis of randomised controlled trials

Lookup NU author(s): Sheila Wallace, Dr Mehdi Javanbakht, Eoin Moloney, Dr Laura Ternent, Professor Luke Vale, Professor Dawn Craig

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).


Abstract

Objectives:To compare the effectiveness and safety of surgical interventions for women with stress urinary incontinence. Design Systematic review and network meta-analysis. Eligibility criteria for selecting studies: Randomised controlled trials evaluating surgical interventions for the treatment of stress urinary incontinence in women. Methods: Identification of relevant randomised controlled trials from Cochrane reviews and the Cochrane Incontinence Specialised Register (searched May 2017), which contains trials identified from the Cochrane Central Register of Controlled Trials (CENTRAL), Medline, Medline In-Process, Medline Epub Ahead of Print, CINAHL, ClinicalTrials.gov, and WHO ICTRP. The reference lists of relevant articles were also searched. Primary outcomes were “cure” and “improvement” at 12 months, analysed by means of network meta-analyses, with results presented as the surface under the cumulative ranking curve (SUCRA). Adverse events were analysed using pairwise meta-analyses. Risk of bias was assessed using the Cochrane risk of bias tool. The quality of evidence for network meta-analysis was assessed using the GRADE approach. Results: 175 randomised controlled trials assessing a total of 21 598 women were included. Most studies had high or unclear risk across all risk of bias domains. Network meta-analyses were based on data from 105 trials that reported cure and 120 trials that reported improvement of incontinence symptoms. Results showed that the interventions with highest cure rates were traditional sling, retropubic midurethral sling (MUS), open colposuspension, and transobturator MUS, with rankings of 89.4%, 89.1%, 76.7%, and 64.1%, respectively. Compared with retropubic MUS, the odds ratio of cure for traditional sling was 1.06 (95% credible interval 0.62 to 1.85), for open colposuspension was 0.85 (0.54 to 1.33), and for transobtrurator MUS was 0.74 (0.59 to 0.92). Women were also more likely to experience an improvement in their incontinence symptoms after receiving retropubic MUS or transobturator MUS compared with other surgical procedures. In particular, compared with retropubic MUS, the odds ratio of improvement for transobturator MUS was 0.76 (95% credible interval 0.59 to 0.98), for traditional sling was 0.69 (0.39 to 1.26), and for open colposuspension was 0.65 (0.41 to 1.02). Quality of evidence was moderate for retropubic MUS versus transobturator MUS and low or very low for retropubic MUS versus the other two interventions. Data on adverse events were available mainly for mesh procedures, indicating a higher rate of repeat surgery and groin pain but a lower rate of suprapubic pain, vascular complications, bladder or urethral perforation, and voiding difficulties after transobturator MUS compared with retropubic MUS. Data on adverse events for non-MUS procedures were sparse and showed wide confidence intervals. Long term data were limited. Conclusions: Retropubic MUS, transobturator MUS, traditional sling, and open colposuspension are more effective than other procedures for stress urinary incontinence in the short to medium term. Data on long term effectiveness and adverse events are, however, limited, especially around the comparative adverse events profiles of MUS and non-MUS procedures. A better understanding of complications after surgery for stress urinary incontinence is imperative. Systematic review registration: PROSPERO CRD42016049339.


Publication metadata

Author(s): Imamura M, Hudson J, Wallace SA, MacLennan G, Shimonovich M, Omar MI, Javanbakht M, Moloney E, Becker F, Ternent L, Montgomery I, Mackie P, Saraswat L, Monga A, Vale L, Craig D, Brazzelli M

Publication type: Article

Publication status: Published

Journal: BMJ

Year: 2019

Volume: 365

Online publication date: 05/06/2019

Acceptance date: 08/04/2019

Date deposited: 05/06/2019

ISSN (print): 0959-8138

ISSN (electronic): 1756-1833

Publisher: BMJ

URL: http://dx.doi.org/10.1136/bmj.l1842

DOI: 10.1136/bmj.l1842

Notes: Provisional acceptance on 1 April 2019 subject to revisions within 48 hours. Still subject to a final decision on acceptance and so havent uploaded full-text until acceptance confirmed.


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