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What is Heller myotomy is used in: and explain in detail?
A laparoscopic Heller myotomy and paial fundoplication is the procedure of choice for esophageal achalasia. The operation consists of a controlled division of the muscle fibers (ie, a myotomy) of the lower esophagus (5 cm) and proximal stomach (2 cm), followed by a paial fundoplication to prevent reflux.