Abstract
Background
In abdominoperineal resection (APR) in male patients with rectal cancer, high margin involvement and urethral injury have been reported to result from difficulty in dissecting the anterior anorectum. Recently, the efficacy of an endoscopic down-to-up rectal dissection was reported. Here, we present a safe and simple technique for anterior dissection using a simultaneous laparoscopic and transperineal endoscopic approach.
Methods
We perform transperineal APR (TpAPR) using both the laparoscopic and transperineal approach (a 2-team approach). Anterior dissection commences just behind the superficial transverse perineal muscle. Next, the striated muscle complex surrounding the rectum (levator ani and puborectalis muscle) is divided. At this point, it is difficult to identify the dissection plane between the membranous urethra and anterior rectum; thus, dissection along the lateral aspect of neurovascular bundle from the lateral to anterior side with the assistance of the laparoscopic team is helpful in identifying the posterior surface of the prostate. Once the prostate is identified, it is relatively easy to divide the rectourethralis muscles. The key steps of our procedure are shown in the video.
Results
Between April 2016 and July 2019, we performed 14 TpAPR procedures in male patients with rectal cancer without distant metastasis. Extended surgery was performed in 8 patients, including pelvic sidewall dissection and combined resection of adjacent organs. Median operative time was 453 min and median blood loss was 46 g. There was 1 (7.1%) circumferential-positive case, but no cases of urethral injury or rectal perforation.
Conclusions
The 2-team TpAPR procedure is beneficial for appropriate dissection of the anterior side during APR surgery.
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The authors Suguru Hasegawa, Ryuji Kajitani, Taro Munechika, Yoshiko Matsumoto, Hideki Nagano, Hirotaka Taketomi, Akira Komono, Naoya Aisu, Gumpei Yoshimatsu, Mitsuaki Morimoto, and Yoichiro Yoshida have no conflicts of interest or financial ties to disclose.
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Hasegawa, S., Kajitani, R., Munechika, T. et al. Avoiding urethral and rectal injury during transperineal abdominoperineal resection in male patients with anorectal cancer. Surg Endosc 34, 4679–4682 (2020). https://doi.org/10.1007/s00464-020-07655-9
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DOI: https://doi.org/10.1007/s00464-020-07655-9