[Diverticula of the esophagus. Etiopathogenetic aspects and principles of surgical treatment].

On the basis of the new knowledges recently acquired with the manometry on the esophageal physiology, the Authors first consider both etiologic and pathologic problems then emphasize the essential principles for correct surgical treatment of esophageal diverticula. With this purpose is confirmed the importance of careful and systematic preoperative study of esophageal pressure. In this way the etiologic role of functional disorders is cleared and a correct surgical treatment, particularly as regards the indication of extramucosal esophagomyotomy, can be performed. Nevertheless the diverticulectomy, performed alone or combined with myotomy, still maintains its role in the treatment of large-size diverticular pouches.