Esophageal Dilation Esophageal dilation is a procedure that allows your doctor to dilate, or stretch, a narrowed area of your esophagus . Doctors can use various techniques for this procedure. Your doctor might perform the procedure as part of a sedated endoscopy. Alternatively, your doctor might apply a local anesthetic spray to the back of your throat and then pass a weighted dilator through your mouth and into your esophagus.Why is it Done?The most common cause of narrowing of the esophagus, or stricture, is scarring of the esophagus from reflux of acid occurring in patients with heartburn. Patients with a narrowed portion of the esophagus often have trouble swallowing; food feels like it is stuck in the chest region, causing discomfort or pain. Less common causes of esophageal narrowing are webs or rings (which are thin layers of excess tissue), cancer of the esophagus, scarring after radiation treatment or a disorder of the way the esophagus moves [motility disorder].How Should I Prepare for the Procedure?An empty stomach allows for the best and safest examination, so you should have nothing to drink, including water, for at least six hours before the examination. Your doctor will tell you when to start fasting.Tell your doctor in advance about any medications you take, particularly aspirin products or anticoagulants (blood thinners). Most medications can be continued as usual, but you might need to adjust your usual dose before the examination. Your doctor will give you specific guidance. Tell your doctor if you have any allergies to medications as well as medical conditions such as heart or lung disease. Also, tell your doctor if you require antibiotics prior to dental procedures, because you might need antibiotics prior to esophageal dilation as well.What Can I Expect during Esophageal Dilation?Your doctor might perform esophageal dilation with sedation along with an upper endoscopy. Your doctor may spray your throat with a local anesthetic spray, and ...