Dysfunction of the esophageal inlet. Treatment by upper esophageal sphincter myotomy.
D000368:Aged; D003680:Deglutition Disorders / Q000503:physiopathology / Q000601:surgery*; D004936:Diverticulum, Esophageal / Q000601:surgery; D004945:Esophagoscopy; D004947:Esophagus / Q000503:physiopathology; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008365:Manometry; D008722:Methods; D008875:Middle Aged