title: 2011 update on esophageal achalasia.
abstract: There have been some breakthroughs in the diagnosis and treatment of esophageal achalasia in the past few years. First, the introduction of high-resolution manometry with pressure topography plotting as a new diagnostic tool has made it possible to classify achalasia into three subtypes. The most favorable outcome is predicted for patients receiving treatment for type II achalasia (achalasia with compression). Patients with type I(classic achalasia) and type III achalasia (spastic achalasia) experience a less favorable outcome. Second, the first multicenter randomized controlled trial published by the European Achalasia Trial group reported 2-year follow-up results indicating that laparoscopic Heller myotomy was not superior to endoscopic pneumatic dilation (PD). Although the follow-up period was not long enough to reach a convincing conclusion, it merits the continued use of PD as a generally available technique in gastroenterology. Third, the novel endoscopic technique peroral endoscopic myotomy is a promising option for treating achalasia, but it requires increased experience and cautious evaluation. Despite all this good news, the bottom line is a real breakthrough from the basic studies to identify the actual cause of achalasia that may impede treatment success is still anticipated.
authors.affiliation: Division of Gastroenterology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan. chuahsk@seed.net.tw
authors.forename: Seng-Kee
authors.initials: SK
authors.lastname: Chuah
authors.forename: Pin-I
authors.initials: PI
authors.lastname: Hsu
authors.forename: Keng-Liang
authors.initials: KL
authors.lastname: Wu
authors.forename: Deng-Chyang
authors.initials: DC
authors.lastname: Wu
authors.forename: Wei-Chen
authors.initials: WC
authors.lastname: Tai
authors.forename: Chi-Sin
authors.initials: CS
authors.lastname: Changchien
mesh_terms: D002404:Catheterization; D004931:Esophageal Achalasia / Q000175:diagnosis* / Q000628:therapy*; D004945:Esophagoscopy / Q000379:methods*; D004947:Esophagus / Q000503:physiopathology*; D006801:Humans; D008365:Manometry / Q000379:methods