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Related Experiment Video

Updated: May 21, 2026

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer

Published on: February 12, 2022

Transanal endoscopic video-assisted (TEVA) excision.

Madhu Ragupathi¹, Dominique Vande Maele, Javier Nieto

¹Colorectal Surgical Associates, Ltd, LLP, Houston, TX, USA.

Surgical Endoscopy

|June 26, 2012

Summary

This summary is machine-generated.

Transanal endoscopic video-assisted (TEVA) excision offers a safe and effective minimally invasive option for removing difficult rectal lesions. This novel approach provides optimal access for complete excision without formal rectal resection, demonstrating early feasibility.

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Area of Science:

Colorectal Surgery
Minimally Invasive Surgery
Gastroenterology

Background:

Transanal endoscopic video-assisted (TEVA) excision is an alternative surgical approach for middle and upper rectal lesions.
It utilizes single-incision laparoscopic surgery principles for minimally invasive removal.
TEVA excision aims for safe and complete lesion removal without formal rectal resection.

Purpose of the Study:

To describe the technique and evaluate early outcomes of TEVA excision.
To assess the feasibility of TEVA excision for rectal lesions not amenable to standard removal techniques.

Main Methods:

TEVA excision was performed on patients with benign or superficial adenocarcinoma rectal lesions beyond 8 cm from the anal verge.
A single-incision laparoscopic surgery (SILS™) port was used for access.
Standard laparoscopic instruments facilitated visualization, full-thickness excision, and primary closure.

Main Results:

Twenty patients underwent TEVA excision, with 70% having benign disease and 30% malignant.
Mean lesion size was 3.0 cm, located 10.6 cm from the anal verge.
Mean operative time was 79.8 minutes, with a mean hospital stay of 1.1 days.

Conclusions:

TEVA excision is a safe and feasible method for local excision of challenging rectal lesions.
Further research is needed to define its role in minimally invasive colorectal surgery.