Figure 8.

Non-survival organ model for training in peroral endoscopic myotomy (POEM). (A) Porcine esophagus and stomach are removed as one unit. POEM is performed following the same principles as in humans. At the end of the procedure, blue dye from the submucosal injection can be identified from the external side at the distal esophagus and esophagogastric junction. (B and C) After completion of POEM, circular myotomy is controlled by external longitudinal incision of the distal esophagus and gastric cardia. (D) A normal diverticulum identified at the gastric cardia after external longitudinal incision.