Background: Achalasia is an infrequent primary motility disorder of the esophagus. Because of uncertain etiology, treatment is only palliative and is directed at decreasing lower esophageal sphincter pressure, improving esophageal emptying and relieving the symptoms of achalasia. Current treatment options include pharmacological, endoscopic and surgical. We undertook a systematic literature review of the management strategies currently available for achalasia. Method: A Medline, PubMed and Cochrane database search was conducted using reference manager 11. Original articles and reviews published in the English literature on the management of achalasia were reviewed. Emphasis was placed on articles published in the last ten years on randomized controlled trials comparing the various forms of treatment. Results: Esophageal manometry is the standard diagnostic evaluation for achalasia. Accurate diagnosis can also be made based on clinical findings and barium esophagogram. Medical treatment with nitrates or calcium channel blockers has variable results in alleviating the symptoms of achalasia but long-term results are disappointing because of tolerance and side effects. Intrasphincteric injection of botulinum toxin, pneumatic dilatation and surgical myotomy are variably effective at controlling the symptoms of achalasia but each modality has specific strength and weaknesses which make their choice suitable in a particular group of patients. While pneumatic dilatation is superior to botulinum toxin injection surgical myotomy provides the best long-term control of symptoms in patients with achalasia. Conclusion: Laparoscopic myotomy should be the initial treatment for most patients with achalasia. Pneumatic dilatation is the most cost-effective alternative but its long-term efficacy is less than that of surgical myotomy. Endoscopic botulinum toxin injection can be considered when other forms of treatment are contraindicated.
Key words: Achalasia, Heller's esophagomyotomy, pneumatic dilatationRésumé Contexte: L'achalasie est une rare anomalie motrice de l'oesophage. En raison de son étiologie incertaine, le traitement est seulement palliatif et vise la réduire la pression sphinctérienne du bas oesophage, l'amélioration de la vidange et le soulagement des symptômes de l'achalasie. Les options thérapeutiques courantes font appel aux moyens pharmacologiques, endoscopiques et chirurgicaux. Nous avons effectué une revue systématique de la littérature relative aux stratégies thérapeutiques actuellement disponibles pour l'achalasie. Méthode: Une recherche sur Medline, Pubmed et Cochrane a été faite a l'aide du logiciel Reference Manager 11. Les articles originaux et les rapports portant sur la prise en charge de l'achalasie et publiés en anglaise ont été passés en revue. L'accent a été mis sur les articles publiés au cours des dix dernières années et sur les essais contrôlés comparant les diverses formes de traitement. Résultats: La manométrie oesophagienne est la méthode de diagnostic standard pour l'achalasie. Le dia...