title: Comparison of endoscopic balloon dilation with metal stent placement in the treatment of achalasia.
abstract: OBJECTIVE
  To compare the outcomes of endoscopic balloon dilation and metal stent placement in patients with achalasia.
  
  
  METHODS
  The patients with newly diagnosed achalasia between July 2001 and December 2011 were retrospectively studied. A total of 88 patients underwent either balloon dilation (n = 41) or metal stent placement (n = 47), their global symptom score and esophageal kinetics index were determined before, one week after and one month after the treatment. All the patients were followed up in the Outpatient Clinics or with a telephone interview every 6 months.
  
  
  RESULTS
  There were significant improvements in the global symptom scores and esophageal kinetics indices in all patients. No major complications were encountered in either group. There were no significant differences with regard to overall treatment failure or long-term outcome.
  
  
  CONCLUSIONS
  Balloon dilation and removable stents can effectively relieve clinical manifestations in patients with achalasia.
authors.affiliation: Department of Gastroenterology, First People's Hospital, Shanghai Jiaotong University, Shanghai, China.
authors.forename: Hang
authors.initials: H
authors.lastname: Zhao
authors.affiliation: Department of Gastroenterology, First People's Hospital, Shanghai Jiaotong University, Shanghai, China.
authors.forename: Xin Jian
authors.initials: XJ
authors.lastname: Wan
authors.affiliation: Department of Gastroenterology, Tongji Hospital, Tongji University, Shanghai, China.
authors.forename: Chang Qing
authors.initials: CQ
authors.lastname: Yang
mesh_terms: D000328:Adult; D000368:Aged; D004106:Dilatation / Q000295:instrumentation / Q000379:methods*; D004931:Esophageal Achalasia / Q000601:surgery*; D004947:Esophagus / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D000069322:Self Expandable Metallic Stents; D016896:Treatment Outcome; D055815:Young Adult
keywords: achalasia; balloon dilation; stents; therapeutics