Development of an animal model that reproduces pulsations for training in esophageal endoscopic submucosal dissection

Abstract

Video 1 Heartbeat simulation enables realistic training in esophageal endoscopic submucosal dissection.

Development of a colonic endoscopic submucosal dissection training model that simulates respiratory movements

“…However, colonic ESD is technically difficult due to factors such as the thinness of the intestinal wall, maneuverability of the endoscope, physiological bending, peristalsis, respiratory movements, and heartbeat 2,3 . Various training models have previously been reported to overcome these difficulties, such as a colonic ESD training model using an animal model 4 and a model that simulates heartbeat using a motor device 5 ; however, there are no reports of ESD training models that simulate respiratory movements. In this report, we introduce the first such ESD training model (Video S1).…”

Safe and Efficient Procedures and Training System for Endoscopic Submucosal Dissection

“…This model of training is useful for learning the basic esophageal ESD procedure, though pulsation and respiratory movements present additional challenges during actual procedures. An ex vivo porcine model with an attached electric motor that rotates at 80 cycles/min, a rate similar to that of the human pulse, has been reported [53]. Once the trainee is able to create an oral-side mucosal incision and trim to create the mucosal flap, he or she uses the distal attachment to assess the space to burrow under the submucosal layer.…”

Prevention and Management of Complications and Education in Endoscopic Submucosal Dissection

“…We can practice suturing a perforation intentionally made by an ESD knife with a hemostatic clip. Intraoperative bleeding, which may seem impossible to reproduce, can be reproduced by injecting red ink into the blood vessels of the organ, allowing us to practice hemostasis [ 57 ]. While some facilities and regions may have problems, such as unavailability of pig organs and cleaning of scopes used in animal models, we have also begun to conduct ESD training using Versatile Training Tissue (VTT; KOTOBUKI medical, Yashio, Saitama, Japan) made of “konjac”, a food item, which are readily available and do not require special care to clean the scope [ 58 ].…”