The invention relates to medicine, particularly to surgery and can be used for surgical treatment of patients with esophageal diverticulum.Summary of the invention consists in that the patient, in a position of right or left lateral decubitus depending on the location of the diverticulum, is performed the lateral thoracotomy with the detection of esophageal diverticulum, is applied the oro-gastric tube, is dissected the diverticulum sac up to its cervix, is circularly sectioned the submucosal layer, after which in the lower part of the esophagueal diverticulum, ipsilaterally, from its cervix is performed the longitudinal myotomy of the esophageal muscles for a distance of 1.5…2 cm, then mechanically is sutured the mucosa of the esophagus, followed by excision of the diverticulum sac, is performed the mioraphy with application of separate sutures, is covered with pleura this area with the control of hemostasis, is performed the revision and drainage of the thoracic cavity with a drain of 24 Fr and is performed the thoracoraphy.
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