Abstract
We recently reported the usefulness of three types of original prelooped caps: the irrigating prelooped cap [1], the two-channel prelooped hood [2], and the internally retained snare hood [3] for endoscopic aspiration mucosectomy (EAM). EAM is the simplest method of endoscopic mucosal resection (EMR) [1] [2] [3] [4] [5], but there is a risk of aspirating and perforating the full thickness of the gastric wall. To reduce the risk of such perforation, the resection is normally performed by strangulation with a snare using a light touch. Experience is needed to apply this light touch with just the right pressure, and it can be an uncertain process. In order to apply vibration during strangulation, a novel vibration hood has been developed that enables strangulation and resection of only the mucosal and submucosal layers, by vibrating the snare during strangulation to shake off the muscle layer and serous membrane ([Fig. 1]).
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