Achalasia is a serious condition that affects the esophagus. The esophagus is the tube that carries food from the throat to the stomach.
The lower esophageal sphincter (LES) is a muscular ring that closes off the esophagus from the stomach. If you have achalasia, your LES fails to open up during swallowing, which it’s supposed to do. This leads to a backup of food within your esophagus.
This condition can be related to damaged nerves in your esophagus. It can also be due to damage of the LES.
Achalasia usually occurs later in life, but it can also occur in children. Individuals who are middle-aged and older are at higher risk for the condition. Achalasia is also more common in people with autoimmune disorders.
People with achalasia will often have trouble swallowing or feel like food is stuck in their esophagus. This is also known as dysphagia.
Symptoms of achalasia:
Causes of achalasia:
Achalasia can happen for different reasons. It can be difficult for your doctor to find a specific cause. This condition may be hereditary, or it may be the result of an autoimmune condition.
With this type of condition, your body’s immune system mistakenly attacks healthy cells in your body. The degeneration of nerves in your esophagus often contributes to the advanced symptoms of achalasia.
Other conditions can cause symptoms similar to achalasia. Cancer of the esophagus is one of these conditions. Another cause is a rare parasitic infection called Chagas’ disease. This disease occurs mostly in South America.
Most achalasia treatments involve your LES. Several types of treatment can either temporarily reduce your symptoms or permanently alter the function of the valve.
As a first-line therapy, your doctors can either dilate the sphincter or alter it. Pneumatic dilation typically involves inserting a balloon into your esophagus and inflating it. This stretches out the sphincter and helps your esophagus function better. However, sometimes dilation tears the sphincter. If this happens, you may need additional surgery to repair it.
Esophagomyotomy is a type of surgery that can help you if you have achalasia. Your doctor will use a large or small incision to access the sphincter and carefully alter it to allow better flow into the stomach. The great majority of esophagomyotomy procedures are successful.
However, some people have problems afterward with gastroesophageal reflux disease (GERD). If you have GERD, your stomach acid backs up into your esophagus. This can cause heartburn.
If you are unable to undergo pneumatic or surgical correction of your achalasia, your doctor might use Botox to relax the sphincter. Botox is injected into the sphincter through an endoscope.
If these options aren’t available or don’t work, nitrates or calcium channel blockers can help relax the sphincter so food can pass through it more easily.
How to diagnose achalasia
Your doctor might suspect you have achalasia if you have trouble swallowing both solids and liquids, particularly if it gets worse over time.
Your doctor may use esophageal manometry to diagnose achalasia. This involves placing a tube in your esophagus while you swallow. The tube records the muscle activity and makes sure your esophagus is functioning properly.
An X-ray or similar exam of your esophagus may also be helpful in diagnosing this condition. Other doctors prefer to perform an endoscopy. In this procedure, your doctor will insert a tube with a small camera on the end into your esophagus to look for problems.
Another diagnostic method is a barium swallow. If you have this test, you’ll swallow barium prepared in liquid form. Your doctor will then track the barium’s movement down your esophagus through X-rays.
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