Definition | Reasons for Procedure | Possible Complications | What to Expect | Call Your Doctor

Reasons for Procedure

Esophageal dilation is done to treat a narrowing in the esophagus, called a stricture. This happens when there is a build-up of scar tissue, which may be due to conditions like:

Esophageal Stricture

Nucleus factsheet image
Copyright © Nucleus Medical Media, Inc.

Esophageal dilation widens the esophagus. Some patients may need the procedure repeated within a year.

What to Expect

In some cases, general anesthesia will be used. This will block any pain and keep you asleep during the procedure. A local anesthetic may also be used to numb the esophagus, and a sedative will be given to relax you.

An esophageal dilation will usually be done along with an endoscopy. During an endoscopy, the doctor will place a slim, flexible tube into the mouth and then into the esophagus. The tube has a tiny light and a camera attached. This will allow the doctor to view your esophagus on a monitor.

An imaging technique called fluoroscopy may also be used, especially when the dilator is being placed. With fluoroscopy, x-rays images of your esophagus will be sent to a monitor for viewing.

After observing the stricture, the doctor will decide which type of dilator to use to stretch the stricture. These tube-shaped devices are available in different sizes and styles. Depending on how severe your stricture is, the doctor may choose a plastic dilator or a balloon dilator.

For the plastic type, the doctor will use a scope to place a guide wire into the esophagus. This will allow the doctor to place the dilator in the correct spot. The scope will be taken out, and a tapered dilator will be placed through your mouth and throat to the site of the stricture. Depending on your condition, the doctor may need to do this process several times using wider dilators.

If a balloon device is used, it will also be inserted using a scope. Once the dilator is in the correct position, the doctor will inflate the balloon to a certain size to widen the stricture.