Abstract:Objective?To explore the clinical effect of POEM in treatment of Achalasia (AC).?Methods?From June, 2012 to May 2016, 44 patients confirmed as AC received POEM intervention. Then compare the Eckardt Gradings before and after the operation as well as the results of CT on the chest and esophageal barium imaging, then evaluate the effect of operation.?Results?44 patients successfully received POEM. Their submucosal tunnel incision length is (12.9 ± 1.1) cm, myotomy length is (9.6 ± 2.4) cm. Random sample visit for 1~39 months shows Eckardt Gradings reaches (1.1 ± 1.1) after operation, obviously reduced (P < 0.01) compared with (6.6 ± 2.0) before operation. 10 cases of CT on the chest before and after operation have esophageal maximum average diameter (25.7 ± 8.5) mm after operation, distinctly decreased compared with (41.5 ± 14.9) mm before operation (P < 0.01). 10 cases of X-ray esophageal imaging before and after operation indicate that esophageal maximum diameter narrows down by (29.3 ± 16.8) % than before. Body weight increases to (58.3 ± 11.7) kg after operation compared to (53.2 ± 10.9) kg before operation, which has the significance in statistics (P < 0.01).?Conclusions?As a booming minimally invasive surgery to treat Achalasia, POEM possesses specific curative effect in short and medium term, effectively relieved the sufferings like dysphagia and improving patients’ nutritional status.