Abstract
Traction methods have been reported to speed up endoscopic submucosal dissection (ESD). We used the multiloop (M-loop) method as a traction method for colorectal ESD and recorded the submucosal dissection time (SDT) and submucosal dissection speed (SDS). From January to August 2018, we used the M-loop method for colorectal ESD procedures and timed the duration and recorded the outcomes. Two experts and eight nonexperts performed the procedures, which were carried out at a tertiary endoscopic center in Japan. A total of 50 patients were treated by colorectal ESD using the M-loop method. The mean SDT was 42.1 ± 4.16 minutes and the mean SDS was 28.0 ± 2.89mm2/minutes. The mean SDS was 38.9 ± 6.9mm2/minutes for experts and 25.3 ± 3.1mm2/minutes for nonexperts. En bloc resection was achieved in 100% of cases. There were 3 adverse events and unfavorable outcomes. Traction by the M-loop method improved SDS in colorectal ESD. The method can be an effective tool to assist colorectal ESD. Further evaluation of the usefulness of the M-loop method is required in direct comparison with conventional ESD.
Published Version
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