title: [Efficacy and safety of peroral endoscopic myotomy in the treatment of achalasia cardia].
abstract: OBJECTIVE
  To evaluate the efficacy and safety of peroral endoscopic myotomy (POEM) for achalasia cardia (AC).
  
  
  METHODS
  A total of 62 patients with AC were enrolled and treated with POEM in the Third Xiangya Hospital, Central South University from April 2012 to October 2014. The symptoms and complications were retrospectively analyzed.
  
  
  RESULTS
  The ages of patients, including 32 males and 30 females, were 14-68 (43.2±5.6) years old. Eckardt scores were 4-6 or ≥7 for 25 patients or 37 patients (including 20 patients were at a score of 12). Thirteen patients suffered balloon expansion for 2-3 times. Sixty-one patients had completed POEM treatment, 1 patient were given Heller surgery instead of POEM because of extensive submucosal adhesion during POEM. The operative time for POEM was (60.8±15.1) min. Fourteen patients had mild subcutaneous emphysema. Among them, 5 suffered pneumoperitoneum and felt better after abdominal puncture exhaust; 2 patients suffered bronchospasm hypoxemia and were relieved after treatment by positive pressure oxygen for 1 h. The hospital stay was (4.3±1.2) d. The postoperative follow-up period was (11.4±5.4) months. Swallowing obstruction, vomiting and chest pain in patients was relieved at different degrees. The treatment effective rate was 100%.
  
  
  CONCLUSIONS
  POEM is a safe, effective and minimally invasive approach for AC.
authors.affiliation: Department of Gastroenterology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
authors.forename: Yunxiang
authors.initials: Y
authors.lastname: Yuan
authors.affiliation: Department of Gastroenterology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
authors.forename: Anliu
authors.initials: A
authors.lastname: Tang
authors.affiliation: Department of Gastroenterology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
authors.forename: Shourong
authors.initials: S
authors.lastname: Shen
authors.affiliation: Department of Gastroenterology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
authors.forename: Xiangqi
authors.initials: X
authors.lastname: Liao
authors.affiliation: Department of Gastroenterology, Third Xiangya Hospital, Central South University, Changsha 410013, China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002299:Cardia / Q000503:physiopathology; D004724:Endoscopy / Q000009:adverse effects / Q000379:methods*; D004931:Esophageal Achalasia / Q000601:surgery*; D049630:Esophageal Sphincter, Lower / Q000503:physiopathology; D005260:Female; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D061646:Operative Time; D011184:Postoperative Period; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult