Peroral endoscopic myotomy of a suspected type III achalasia with a double scope control
Epublication WebSurg.com, Apr 2019;19(04). URL: http://websurg.com/doi/vd01en5592
A 59-year-old woman was referred to our unit for progressive dysphagia and chest pain associated with heartburn and chest fullness. A nutcracker esophagus was suspected at the HD manometry and the patient was scheduled for a peroral endoscopic myotomy (POEM). The procedure started with an esophagogastroduodenal series (EGDS), which showed abnormal contractions of the distal esophagus and increased resistance at the level of the esophagogastric junction (EGJ) with a high suspicion of type III achalasia. The tunnel was started 12cm above the EGJ in a 5 o’clock position. After submucosal injection, a mucosal incision was made with a new triangle-tip (TT) knife equipped with water jet facility. The access to the submucosa was gained and a submucosal longitudinal tunnel was created until the EGJ, dissecting the submucosal fibers with the TT knife. The myotomy was performed by completely dissecting the circular muscular layer muscle fibers using swift coagulation. To assess the extension of the myotomy just at the level of the EGJ, a “double scope control” was performed by inserting a pediatric scope, which confirmed the presence of the mother scope light in the esophagus. The submucosal tunnel and the myotomy were then extended together for 1 to 2cm. A second check with the pediatric scope showed the presence of the mother scope light in the correct position above the EGJ. The mucosal incision site was finally closed using multiple endoclips.