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. 2019 Aug 13:46:1-3.
doi: 10.1016/j.amsu.2019.08.002. eCollection 2019 Oct.

Novel technique with the IRIS U kit to prevent urethral injury in patients undergoing transanal total mesorectal excision

Toshikatsu Nitta  1 , Keitaro Tanaka  2 , Jun Kataoka  1 , Masato Ohta  1 , Masatsugu Ishii  2 , Takashi Ishibashi  1 , Junji Okuda  2
Affiliations

Novel technique with the IRIS U kit to prevent urethral injury in patients undergoing transanal total mesorectal excision

Toshikatsu Nitta et al. Ann Med Surg (Lond). .

Abstract

Background: Low anterior resection of the rectum with total mesorectal excision (TME) has been the gold standard for the surgical treatment of rectal cancer as it has the lowest recurrence rates. The key issue while performing transanal TME (TaTME) is avoiding iatrogenic urethral injury. We introduce our surgical technique for TaTME.

Surgical technique: Intraurethral indocyanine green injection using the IRIS U kit with subsequent visualization under NIR was safely utilized during the TaTME. We were able to easily detect and visualize the IRIS urethral kit. The prostatic segment of the urethra can be identified in real-time using the infrared illumination system urethral kit (IRIS U kit).

Benefits: The prostatic segment of the urethra was easily and quickly identified by the green fluorescence during TaTME.

Conclusion: Our TaTME technique is an easy and feasible approach that provides real-time urethral images.

Keywords: IRIS U kit; TaTME; Urethral injury; transanal total mesorectal excision, TaTME.

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Conflict of interest statement

None.

Figures

Fig. 1
Fig. 1
Infrared illumination system The pink light flashed on and off in real-time. . (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Fig. 2
Fig. 2
a: The prostatic urethra in the absence of near-infrared fluorescence. b: The prostatic urethra under near-infrared fluorescence. (double white dots).
See this image and copyright information in PMC

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