639. WHICH FACTORS LEAD PATIENTS WITH BENIGN ESOPHAGEAL STRICTURES FOR SURGICAL TREATMENT BESIDES ENDOSCOPIC TREATMENT?

Background This work proposes to evaluate patients with benign esophageal strictures, excluding caustic strictures, about their etiologies and poor prognostic factors for the success of endoscopic treatment. Methods It was evaluated in our service 38 patients, from 1992 to 2023, with benign esophageal strictures not related to caustic strictures. We could follow-up 24 patients from 7 months and 384 months (average of 136 months). Four died during the follow- up. We could analyze these following outcomes: clinical symptoms, surgical indications, age, gender, alcohol abuse, smoking, length of stricture, number of endoscopic dilation and stricture etiology. Results Concerning the 24 patients with follow-up, 4 had esophagectomy; 10 underwent endoscopic treatment with fundoplication and 10 were treated with endoscopic and medical treatment. Both groups, endoscopic and medical treatment, and endoscopic treatment with fundoplication had 4 patients that continued symptomatic (40%). The number of endoscopic dilations range from 1 to 101 (average 18) in each patient. The etiology of 38 patients with benign esophageal strictures were: 35 gastroesophageal reflux disease (13 Barrett´s esophagus); one with infectious esophagitis; one eosinophilic esophagitis and another due to esophageal varicose sclerosis. The prognostic factors to surgical treatment will be analyzed by statistical analysis. Conclusion From our data, it is possible to conclude that the endoscopic treatment is effective to manage the majority of benign esophageal strictures, even in association with fundoplication. Moreover, the main etiology was gastroesophageal reflux disease. Only few patients have developed indication to esophagectomy.