Bhupinder Anand, MD
In this Article
Dilation and esophagomyotomy to treat achalasia
The lower esophageal sphincter also may be treated directly by forceful dilation. Dilation of the lower esophageal sphincter is done by having the patient swallow a tube with a balloon at the end. The balloon is placed across the lower sphincter with the help of X-rays, and the balloon is blown up suddenly. The goal is to stretch--actually to tear--the sphincter. The success of forceful dilation has been reported to be between 60% and 95%. Patients in whom dilation is not successful can undergo further dilations, but the rate of success decreases with each additional dilation. If dilation is not successful, the sphincter may still be treated surgically. The main complication of forceful dilation is rupture of the esophagus, which occurs 5% of the time. Half of the ruptures heal without surgery, though patients with rupture who do not require surgery should be followed closely and treated with antibiotics. The other half of ruptures require surgery. (Although surgery carries additional risk for the patient, surgery can repair the rupture as well as permanently treat the achalasia with esophagomyotomy.) Death following forceful dilation is rare. Dilation is a quick and inexpensive procedure compared with surgery, and requires only a short hospital stay.
The sphincter also can be cut surgically, a procedure called esophagomyotomy. The surgery can be done using an abdominal incision or laparoscopically through small punctures in the abdomen. In general, the laparoscopic approach is used with uncomplicated achalasia. Alternatively, the surgery can be done with a large incision or laparoscopically through the chest. Esophagomyotomy is more successful than forceful dilation, probably because the pressure in the lower sphincter is reduced to a greater extent and more reliably; 80%-90% of patients have good results. With prolonged follow-up, however, some patients develop recurrent dysphagia. Thus, esophagomyotomy does not guarantee a permanent cure. The most important side effect from the more reliable and greater reduction in pressure with esophagomyotomy is reflux of acid (gastroesophageal reflux disease or GERD). In order to prevent this, the esophagomyotomy can be modified so that it doesn't completely cut the sphincter or the esophagomyotomy may be combined with anti-reflux surgery (fundoplication). Whichever surgical procedure is done, some physicians recommend life-long treatment with oral medications for acid reflux. Others recommend 24 hour esophageal acid testing with lifelong medication only if acid reflux is found.
REFERENCE: Allaix, M.E. MD. "Achalasia." Medscape.
Medically Reviewed by a Doctor on 7/24/2015
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