Esophageal dilation widens a narrowed section of the esophagus. This is the tube that carries food and liquids from the mouth to the stomach. An esophagus that is too narrow can make it hard to swallow.
This procedure is done to widen a narrow esophagus. Narrowing happens when there is a buildup of scar tissue because of:
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Problems are rare, but all procedures have some risk. The doctor will go over some problems that could happen, such as:
Things that may raise the risk of problems are:
The surgical team may meet with you to talk about:
A sedative may be given to help you relax. The doctor may also give:
The doctor will place a tube into the mouth and pass it to the esophagus. The tube has a tiny light and a camera that will help the doctor see the area. The doctor may also view the area using imaging methods.
The doctor will decide which type of dilator to use when the stricture is found. There are many types of tube-shaped devices. The doctor may choose a plastic or a balloon dilator. This will depend on how narrow the area is.
For the plastic dilator, a scope is used 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. A tapered dilator will be placed through the mouth and throat to the site. The doctor may need to do this process many times using wider dilators.
If the balloon type is used, it will also be inserted using a scope. The dilator is placed in the correct position. The balloon is inflated to the size needed to widen the stricture.
About 15 minutes, but timing will depend on the size of the stricture
Throat pain is common in the first 24 hours. Medicine and home care can help.
After the procedure, the staff may check to make sure your gag reflex is working as it should.
It will take about a day for throat pain to go away. A special diet may be needed until the pain is gone. You should be able to go back to your normal activities the next day.
Call your doctor if you have:
If you think you have an emergency, call for medical help right away.
American College of Gastroenterology
American Society for Gastrointestinal Endoscopy
Canadian Digestive Health Foundation
Eosinophilic esophagitis in adults. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/eosinophilic-esophagitis-in-adults. Accessed December 3, 2020.
Esophageal dilatation. Children’s Hospital of Philadelphia website. Available at: https://www.chop.edu/treatments/esophageal-dilatation#.VZLcV010zxM. Accessed December 3, 2020.
Ferreira CT, Vieira MC, et al. Eosinophilic esophagitis-Where are we today?. J Pediatr (Rio J). 2019 May ;95(3):275-281.
Understanding esophageal dilation. American Society of Gastrointestinal Endoscopy website. Available at: https://www.asge.org/home/for-patients/patient-information/understanding-eso-dilation-updated. Accessed December 3, 2020.
Last reviewed September 2020 by
EBSCO Medical Review Board
Marcin Chwistek, MD
Last Updated: 4/20/2021