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Related to cardiomyotomy: fundoplication
Longitudinal division of the muscular layer down to the submucosa of the lowest part of the esophageal wall; some muscle fibers of the cardia may also be divided.
[esophagus + G. mys, muscle, + tomē, incision]
Surgical therapy for achalasia. The muscles surrounding the cardioesophageal junction are cut, while the underlying mucous membrane is left intact.