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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YHT: Protocol/project development, data collection, management and analysis, manuscript writing. MF: Manuscript editing. IH: Assistance with statistical analysis, manuscript editing. VW: Protocol/project development, manuscript editing.
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Frazer: Past paid preceptor for Ethicon (till 2011); No conflicts: Tan/Hughes/Wong.
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Tan, Y.H., Frazer, M.I., Hughes, I. et al. Correlation between translabial ultrasound parameters and outcomes in retropubic mid-urethral slings: can we predict success?. World J Urol 39, 163–168 (2021). https://doi.org/10.1007/s00345-020-03153-8
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DOI: https://doi.org/10.1007/s00345-020-03153-8