Long-term outcomes of TOT and TVT procedures for the treatment of female stress urinary incontinence: a systematic review and meta-analysis
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Introduction and hypotheses
One of the most relevant topics in the field of pelvic floor dysfunction treatment is the long-term efficacy of surgical procedures, in particular, the use of prosthesis. Hence, a systematic review and meta-analysis was conducted to evaluate the long-term effectiveness and safety of midurethral sling (MUS) procedures for stress urinary incontinence (SUI), as reported in randomised controlled trials (RCTs) and non-randomised studies.
This systematic review is based on material searched and obtained via PubMed/Medline, Scopus, and the Cochrane Library between January 2000 and October 2016. Peer-reviewed, English-language journal articles evaluating the long-term (≥5 years) efficacy and safety of MUS in women affected by SUI were included.
A total of 5,592 articles were found after the search, and excluding duplicate publications, 1,998 articles were available for the review process. Among these studies, 11 RCTs (0.6%) and 5 non-RCTs (0.3%) could be included in the qualitative and quantitative synthesis. Objective and subjective cumulative cure rates for retropubic technique (TVT) and transobturator tape (TOT; both out–in and in–out) were 61.6% (95% CI: 58.5–64.8%) and 76.5% (95% CI: 73.8–79.2%), and 64.4% (95% CI: 61.4–67.4%) and 81.3% (95% CI: 78.9–83.7%) respectively. When considering TOT using the out–in technique (TOT-OI) and TOT using the in–out technique (TVT-O) the objective and subjective cumulative cure rates were 57.2% (95% CI: 53.7–60.7%) and 81.6% (95% CI: 78.8–84.4%), and 68.8% (95% CI: 64.9–72.7%) and 81.3% (95% CI: 77.9–84.7%) respectively. Furthermore, this article demonstrates that both TVT and TOT are associated with similar long-term objectives (OR: 0.87 [95% CI: 0.49–1.53], I 2 = 67%, p = 0.62) and subjective (OR: 0.84 [95% CI: 0.46–1.55], I 2 = 68%, p = 0.58) cure rates. Similarly, no significant difference has been observed between TTOT-OI and TVT-O) in objective (OR: 3.03 [95% CI: 0.97–9.51], I 2 = 76%, p = 0.06) and subjective (OR: 1.85 [95% CI: 0.40–8.48], I 2 = 88%, p = 0.43) cure rates. In addition, this study also shows that there was no significant difference in the complication rates for all comparisons: TVT versus TOT (OR: 0.83 [95% CI: 0.54–1.28], I 2 = 0%, p = 0.40), TOT-OI versus TVT-O (OR: 0.77 [95% CI: 0.17–3.46], I 2 = 86%, p = 0.73).
Independent of the technique adopted, findings from this systematic review and meta-analysis suggest that the treatment of SUI with MUS might be similarly effective and safe at long-term follow-up.
KeywordsSling Stress urinary incontinence Surgery TOT TVT
Autologous fascial sling
Laparoscopic mesh colposuspension
Randomised controlled trials
Surgeon-tailored polypropylene mesh
Stress urinary incontinence
Transobturator tape (both out–in and in–out)
TOT using the out–in technique
Transvaginal tape using the retropubic technique
TOT using the in–out technique
Compliance with ethical standards
No funding was received for this study.
Conflicts of interest
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