Fluorescence to highlight the urethra - a human cadaveric study

<p>Purpose: Urethral injury is a feared complication of surgeons performing transanal TME (TaTME) or abdomino-perineal excision (APE) procedures. Injury during TaTME occurs when the prostate is inadvertently mobilised or as a direct injury similar to the direct injury during the perineal disse...

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প্রধান লেখক: Barnes, T, Penna, M, Hompes, R, Cunningham, C
বিন্যাস: Journal article
প্রকাশিত: Spinger Verlag 2017
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author Barnes, T
Penna, M
Hompes, R
Cunningham, C
author_facet Barnes, T
Penna, M
Hompes, R
Cunningham, C
author_sort Barnes, T
collection OXFORD
description <p>Purpose: Urethral injury is a feared complication of surgeons performing transanal TME (TaTME) or abdomino-perineal excision (APE) procedures. Injury during TaTME occurs when the prostate is inadvertently mobilised or as a direct injury similar to the direct injury during the perineal dissection of APE procedures. This is a proof-in-principle study aiming to assess the feasibility of using ICG to fluoresce the urethra in human cadavers.</p> <p>Methods: Indocyanine green at varying doses was mixed with instillagel and infiltrated into the urethra of male human cadavers. The urethra was exposed through either a perineal incision or by mobilisation of the prostate during a TaTME dissection and fluorescence observed using a PINPOINT laparoscope (NOVADAQ). Brightness was assessed on the images using ImageJ (National Institute of Health).</p> <p>Results: Eight cadavers were included in the study. Fluorescence was visualised in the urethra in all 8 cadavers. Minimal dissection was required to obtain fluorescence trans-perineally. In one cadaver the urethra was demonstrated under fluorescence using a simulated TaTME with additional fluorescence also being observed in the prostate. There was no correlation between brightness and dosing.</p> <p>Conclusions: This novel proof of principle study demonstrates a simple way in which the urethra may be easily identified preventing it from injury during surgery.</p>
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spelling oxford-uuid:d90a89dd-35fb-4c57-a7c3-07c707513b6e2022-03-27T08:53:11ZFluorescence to highlight the urethra - a human cadaveric studyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d90a89dd-35fb-4c57-a7c3-07c707513b6eSymplectic Elements at OxfordSpinger Verlag2017Barnes, TPenna, MHompes, RCunningham, C<p>Purpose: Urethral injury is a feared complication of surgeons performing transanal TME (TaTME) or abdomino-perineal excision (APE) procedures. Injury during TaTME occurs when the prostate is inadvertently mobilised or as a direct injury similar to the direct injury during the perineal dissection of APE procedures. This is a proof-in-principle study aiming to assess the feasibility of using ICG to fluoresce the urethra in human cadavers.</p> <p>Methods: Indocyanine green at varying doses was mixed with instillagel and infiltrated into the urethra of male human cadavers. The urethra was exposed through either a perineal incision or by mobilisation of the prostate during a TaTME dissection and fluorescence observed using a PINPOINT laparoscope (NOVADAQ). Brightness was assessed on the images using ImageJ (National Institute of Health).</p> <p>Results: Eight cadavers were included in the study. Fluorescence was visualised in the urethra in all 8 cadavers. Minimal dissection was required to obtain fluorescence trans-perineally. In one cadaver the urethra was demonstrated under fluorescence using a simulated TaTME with additional fluorescence also being observed in the prostate. There was no correlation between brightness and dosing.</p> <p>Conclusions: This novel proof of principle study demonstrates a simple way in which the urethra may be easily identified preventing it from injury during surgery.</p>
spellingShingle Barnes, T
Penna, M
Hompes, R
Cunningham, C
Fluorescence to highlight the urethra - a human cadaveric study
title Fluorescence to highlight the urethra - a human cadaveric study
title_full Fluorescence to highlight the urethra - a human cadaveric study
title_fullStr Fluorescence to highlight the urethra - a human cadaveric study
title_full_unstemmed Fluorescence to highlight the urethra - a human cadaveric study
title_short Fluorescence to highlight the urethra - a human cadaveric study
title_sort fluorescence to highlight the urethra a human cadaveric study
work_keys_str_mv AT barnest fluorescencetohighlighttheurethraahumancadavericstudy
AT pennam fluorescencetohighlighttheurethraahumancadavericstudy
AT hompesr fluorescencetohighlighttheurethraahumancadavericstudy
AT cunninghamc fluorescencetohighlighttheurethraahumancadavericstudy