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. 2001 Mar;33(3):253-6.
doi: 10.1055/s-2001-12810.

A novel approach to endoscopic colorectal mucosal resection using a three-channel outer tube and multiple forceps: an experimental assessment

M Mukai  1 , H Iwase, S Himeno, M Ishii, S Yasuda, H Nakazaki, H Makuuchi
Affiliations

A novel approach to endoscopic colorectal mucosal resection using a three-channel outer tube and multiple forceps: an experimental assessment

M Mukai et al. Endoscopy. 2001 Mar.

Abstract

Background and study aims: Colorectal endoscopic mucosal resection (EMR) has limitations both anatomically and technically when it is done using the conventional snare wire method. The aim of this study was to develop a new method and instrument for colorectal EMR.

Methods: A total of 21 EMR procedures were done using ten surgical specimens. Saline was injected into the normal submucosa of freshly resected colorectal specimens to prepare a pseudotumor. EMR was performed experimentally by employing a three-channel outer tube with three forceps and a colonoscope with a needle-type precutting knife. This method was assessed in terms of safety and the size of the resected specimens.

Results: Perforation occurred only twice in the initial stage of this study. The size of the specimens resected by EMR was 28-39 mm (long diameter 34.8+/-3.11), by 22-28 mm (short diameter 25.8+/-2.07).

Conclusion: This method can achieve safety and en bloc mucosal resection to the submucosal layer. This novel approach may be promising for clinical application as a new form of endoscopic surgery.

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