title: Double-Scope Peroral Endoscopic Myotomy (POEM) for Esophageal Achalasia: The First Trial of a New Double-Scope POEM.
abstract: With the accumulation of clinical trials demonstrating its efficacy and safety, peroral endoscopic myotomy (POEM) has emerged as a less invasive treatment option for esophageal achalasia compared with laparoscopic Heller myotomy. However, the difficulty in determining the exact extent of myotomy, a critical factor associated with the success and safety of the procedure, remains a limitation. Although the various endoscopic landmarks and ancillary techniques have been applied, none of these has been proven sufficient. As a solution for this limitation, the double-scope POEM technique with a second endoscope to assure the exact length of the submucosal tunnel has been applied since 2014. Before double-scope POEM was introduced, the second endoscope was applied only to confirm the accuracy of the procedure. In the present study, we performed double-scope POEM in the treatment of esophageal achalasia through a novel procedure of simultaneous application of the second endoscope to assist in the conventional POEM procedure.
authors.affiliation: Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Hee Jin
authors.initials: HJ
authors.lastname: Hong
authors.affiliation: Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.|Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Ga Won
authors.initials: GW
authors.lastname: Song
authors.affiliation: Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.|Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Weon Jin
authors.initials: WJ
authors.lastname: Ko
authors.affiliation: Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.|Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Won Hee
authors.initials: WH
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.|Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Ki Baik
authors.initials: KB
authors.lastname: Hahm
authors.affiliation: Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.|Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Sung Pyo
authors.initials: SP
authors.lastname: Hong
authors.affiliation: Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.|Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Joo Young
authors.initials: JY
authors.lastname: Cho
keywords: Double-scope peroral endoscopic myotomy; Esophageal achalasia; Novel approach; Peroral endoscopic myotomy