Su1484 Prevalence of Barrett's Esophagus, Dysplasia and Esophageal Adenocarcinoma in a Single Centre in Argentina

underwent TEEM. A circular myotomy was safely accomplished in all. Resolution of dysphagia was reported in the immediate post op period in all patients and at 6 months. The average LES pressure decreased from average of 27.5 mm of Hg prior to the myotomy to average of 10.5 mm of Hg in 2 patients who have reached 6 month follow up. The esophagus remained a peristaltic. Conclusions: A decrease in LES pressure can be documented at 6 months following TEEM. We speculate that the benefits of TEEM are permanent.