Trans-Anal Minimally Invasive Surgery (TAMIS) for Completion Local Excision of Well-Differentiated Rectal Neuroendocrine Tumours.

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Introduction: Rectal NETs (R-NETs) <2cm are often amenable to endoscopic resection, but initial resections are often incomplete, and extended monitoring or radical surgery may then be required. Trans-anal minimally invasive surgery (TAMIS) allows resection of rectal tumours while reducing surgical morbidity. Data on its use in R-NETs is scant.

Aim(s): To assess the results of TAMIS for completion local excision of R-NETs following endoscopic resection.

Materials and methods: We reviewed patients undergoing TAMIS for NET at our institution (2013-2016). Included patients had incomplete endoscopic resection (margin ≤1mm), a visible scar on repeat endoscopy, and localized disease on systemic imaging. Full-thickness resection of the endoscopic scar was performed. Outcomes were 30-day major morbidity (Clavien-Dindo III-V), resection margin, and oncological outcomes.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Chan D

Authors: Chan D, Law C, Hallet J, Singh S, Ashamalla S,

Keywords: TAMIS,