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KMID : 1011820190600050367
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Investigative and Clinical Urology
2019 Volume.60 No. 5 p.367 ~ p.372
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A novel human cadaver model to investigate a retrourethral transobturator male sling procedure
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Mungovan Sean F.
Jaffe William I.
Graham Petra L.
Patel Manish I.
Sandhu Jaspreet S.
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Abstract
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Purpose: To develop a cadaver model for the assessment of a male transobturator male sling (retrourethral transobturator sling [RTS], AdVance™; Boston Scientific, USA) to investigate its effect on a simulated abdominal and retrograde leak point pressures (ALPP, RLPP) and the urethral pressure profile (UPP).
Materials and Methods: Three fresh frozen human male cadaver specimens were obtained. A suprapubic tube was inserted into the bladder and connected to a digital manometer to measure bladder pressure. Manual suprapubic pressure was then applied to generate an increase in intraabdominal pressure and measure a simulated ALPP. Subsequent measurements of RLPP and UPP were recorded. All measurements were undertaken prior to and following insertion of a RTS.
Results: The placement of the RTS consistently increased the simulated ALPP for all three cadaver specimens when compared to baseline measures. No leaks occurred at simulated ALPP's of 170 cm H2O for specimen 1, 160 cm H2O for specimen 2, and 170 cm H2O for specimen 3. There was minimal or no change in the RLPP's and UPP's following insertion of the RTS when compared to respective baseline.
Conclusions: A model using fresh unfixed cadavers that incorporates a simulated measurement of ALPP is feasible for male stress urinary incontinence surgical intervention investigations.
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KEYWORD
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Cadaver, Male, Suburethral slings, Urinary bladder, Urinary incontinence
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