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 ...

The extension of the myotomy onto the gastric wall (clearly the most critical and challenging part of the operation) proved difficult because of poor exposure, with the consequent risk of a short ...

The POEM procedure is performed to treat the swallowing disorder known as achalasia. Achalasia is a disorder of motility in the esophagus in which the esophagus has lost its normal ability to move ...

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 ...

Preoperative evaluation is essentially the same as that for laparoscopic Heller myotomy. The patient is placed under general anesthesia and intubated with a double-lumen endotracheal tube so that the ...