Objective To evaluate the etiological factors,diagnosis,treatment and prevention of anastomotic leakage in thoracic cavity after esophagectomy. Methods There were 55 cases of anastomotic leakage among 1812 patients after taking the operation of esophagectomy. 28 patients were treated with non-operative treatment,27 patients were treated with operational treatment. Results 22 of 28 patients with non-operative treatment were cured,4 cases of death,2 cases were discharged voluntarily after giving up therapy; 2...