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KMID : 1141920230390040332
Annals of Coloproctology
2023 Volume.39 No. 4 p.332 ~ p.341
Recurrence following transanal total mesorectal excision for rectal cancer: a monocentric retrospective series of technically difficult cases
Jonathan Frigault

Genevieve Morin
Sebastien Drolet
Philippe Bouchard
Alexandre Bouchard
Thanh-Quan Philips Ngo
Francois Letarte
Abstract
Purpose : Transanal total mesorectal excision (TaTME) has been proposed to overcome surgical difficulties encountered during rectal resection, especially for patients having high body mass index or low rectal cancer. The aim of this study was to evaluate oncologic outcomes following TaTME.

Methods : This retrospective study included all consecutive patients with rectal cancer who had a TaTME from 2013 to 2019. The main outcome was the incidence of locoregional recurrence by the end of the follow-up period.

Results : Among a total of 81 patients, 96.3% were male, and their mean age was 63¡¾9 years. The mean body mass index was 30.3¡¾5.7 kg/m2, and the median distance from tumor to anal verge was 5.0 cm (interquartile range [IQR], 4.0?6.0 cm). Most patients had a low anterior resection performed (n=80, 98.8%) with a diverting ileostomy (n=64, 79.0%). Distal and circumferential resection margins were positive in 2.5% and 6.2% of patients, respectively. Total mesorectal excision was complete or near complete in 95.1% of patients. A successful resection was achieved in 72 patients (88.9%). After a median follow-up of 27.5 months (IQR, 16.7?48.1 months), 4 patients (4.9%) experienced locoregional recurrence. Anastomotic leaks were observed in 21 patients (25.9%). At the end of the follow-up, 69 patients (85.2%) were stoma-free.

Conclusion : TaTME was associated with acceptable oncological outcomes, including low locoregional recurrence rates in selected patients with low rectal cancer. Although associated with a high incidence of postoperative morbidities, the use of TaTME enabled a high rate of successful sphincter-saving procedures in selected patients who posed a technical challenge.
KEYWORD
Transanal endoscopic surgery, Rectal neoplasms, Local neoplasm recurrence
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