Experimental model of two-colonoscope surgery for superficially spreading colonic tumors larger than 3 cm in the right colon

Masaya Mukai, Takayuki Tajima, Yasuhisa Oida, Kyoko Kishima, Masato Nakamura, Hiroyasu Makuuchi
2007 Oncology Reports  
In the present study, we experimentally examined the feasibility of two-colonoscope surgery using two types of forceps to achieve safe, reliable, and complete endoscopic mucosal resection (EMR)/endoscopic submucosal dissection (ESD) of large superficial tumors in the right colon. It was confirmed at all experimental sessions that the two pairs of forceps intersected with each other over a wide angle of at least 90˚ in the cecum, and that the tips of the forceps could be moved by at least 180˚
more » ... the longitudinal and horizontal directions. In another experiment, a piece of tissue measuring 3x3 cm or larger could be safely resected from a chicken thigh as the pseudo-tumor. Based on these results, twocolonoscope surgery is considered clinically promising as a next-generation EMR/ESD technique for safe, reliable, and complete resection of superficial tumors of the right colon measuring 3 cm or more in diameter.
doi:10.3892/or.18.3.629 fatcat:yurb74bhh5gkppif4z5zb2lw4u