Per-oral endoscopic myotomy (with video) Rahul Pannala, MD, MPH, FASGE, Barham K. Abu Dayyeh, MD, MPH, Harry R. Aslanian, MD, FASGE, Brintha K. Enestvedt, MD, MBA, Sri Komanduri, MD, FASGE, Michael Manfredi, MD, John T. Maple, DO, FASGE, Udayakumar Navaneethan, MD, Mansour A. Parsi, MD, FASGE, Zachary L. Smith, DO, Shelby A. Sullivan, MD, Nirav Thosani, MD, Subhas Banerjee, MD, FASGE  Gastrointestinal Endoscopy  Volume 83, Issue 6, Pages 1051-1060 (June 2016) DOI: 10.1016/j.gie.2016.03.001 Copyright © 2016 Terms and Conditions

Figure 1 Steps of per-oral myotomy procedure. Mucosal incision (A), submucosal dissection (B), submucosal tunneling (C), myotomy (D, E), and mucosal closure (F). Republished with permission.12 Gastrointestinal Endoscopy 2016 83, 1051-1060DOI: (10.1016/j.gie.2016.03.001) Copyright © 2016 Terms and Conditions

Figure 2 Needle-knives commonly used in per-oral endoscopic myotomy procedures. A, Triangular tip knife (KD-640L; Olympus America, Center Valley, Pa). B, Hybrid knife 20150-060; ERBE USA, Marietta, Ga. Images courtesy of Olympus America and ERBE USA, respectively. Gastrointestinal Endoscopy 2016 83, 1051-1060DOI: (10.1016/j.gie.2016.03.001) Copyright © 2016 Terms and Conditions