WASHINGTON, DC—A transcatheter electrosurgical procedure that mimics surgical myotomy may be an option in some patients to relieve left ventricular outflow tract (LVOT) obstruction in the setting of ...
An endoscope with a transparent cap enters through a 2 cm mucosal incision into the submucosal “third” space, approximately 5 cm proximal to the lower esophageal sphincter. Four distinct tissue layers ...