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19.03.2020 | Original Article

Correlation between translabial ultrasound parameters and outcomes in retropubic mid-urethral slings: can we predict success?

Zeitschrift:
World Journal of Urology
Autoren:
Yu Hwee Tan, Malcolm I. Frazer, Ian Hughes, Vivien Wong
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00345-020-03153-8) contains supplementary material, which is available to authorized users.

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Abstract

Purpose

The aim of this study was to assess the association between four-dimensional translabial ultrasound (4D-TLUS) features of the retropubic mid-urethral sling (MUS) and post-operative pelvic floor symptoms.

Methods

A prospective cohort study was performed involving 100 women who had a solitary retropubic MUS (TVT Exact™) between Jan 2013 and Dec 2017 for urodynamic stress incontinence (SI) at a tertiary urogynaecological centre. All patients completed a standardised interview and had free flowmetry, prolapse evaluation and assessment for mesh exposure and tenderness. 4D-TLUS parameters measured included pelvic organ descent, levator ani status, sling–symphysis pubis (SP) gap at rest and Valsalva, angle formed by cranial and caudal ends of the sling, cranio-caudal and dorso-ventral sling–symphysis pubis distance at Valsalva. The primary outcome was treatment success as defined by patient report of cure or improvement and no objective demonstrable SI.

Results

Eighty-nine (89%) patients reported treatment success. Two patients (2%) had mesh exposure; one was symptomatic with pain, requiring complete sling removal. There was a significant association between treatment success and a SP gap at Valsalva of 10–12 mm (p = 0.001); and independently with a SP angle at Valsalva of 45°–80° (p = 0.007). A narrower SP gap at Valsalva closer to 10 mm was associated with voiding symptoms (p = 0.036).

Conclusion

Sling–pubis gap and sling–pubis angle at Valsalva appear to be significantly associated with treatment success in retropubic MUS. There is a significant association between a narrower sling–pubis gap at Valsalva and voiding symptoms.

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