Achalasia is considered to be a rare disease of the muscle of the lower esophageal body and the lower esophageal sphincter. The particular cause of achalasia is unknown. However, it may usually occur by the degeneration of the esophageal muscles and, more importantly, the nerves that control the muscles. As a result, people suffering with achalasia face difficulty in swallowing food. In addition to the failure to relax.
In achalasia at least half of the patients, they have the symptoms of lower sphincter resting pressure (which is usually known as the pressure in the lower sphincter when the patient is not swallowing) also is abnormally high. In addition to the abnormalities of the lower sphincter, the muscle lower half to two-thirds of the body of the esophagus show abnormalities in contraction, which is peristaltic waves do not occur.
Disease statistics: Achalasia is an uncommon swallowing disorder that affects about 1 in every 100,000 people. Disease affects mostly adults between ages 30s and 50s, achalasia is only diagnosed in some 2,000 people in the U.S. each year. It occurs equally in males and females. It is typically diagnosed in adults, but can occur in children as well.