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HALO® Ablation

HALO® Ablation Explained

HALO ablation is an advanced treatment for Barrett’s esophagus that removes damaged lining in the esophagus before it can progress to cancer. Using controlled radiofrequency energy during an upper endoscopy, your provider precisely targets abnormal cells while preserving healthy tissue. The procedure is outpatient and typically requires little downtime.

What it helps diagnose or prevent

HALO ablation is used to treat and prevent progression.

It helps:

  • Remove Barrett’s esophagus with dysplasia (precancerous changes)
  • Reduce the risk of esophageal cancer
  • Eliminate persistent abnormal tissue caused by chronic acid reflux

How it's performed

HALO ablation is performed during an upper endoscopy.

  • A thin, flexible scope is passed through the mouth into the esophagus
  • A specialized device delivers controlled radiofrequency energy
  • Abnormal tissue is removed in a precise, uniform layer

The procedure typically takes 20–40 minutes. Some patients require more than one treatment session.

Sedation & safety

You’ll receive sedation to keep you comfortable. Most patients sleep through the procedure and go home the same day with a driver.

HALO ablation is considered safe, but possible risks include:

  • Temporary chest discomfort
  • Esophageal narrowing (stricture)
  • Bleeding (rare)
  • Perforation (very rare)

Your provider will review individual risks with you.

Prep & Timeline
What to Expect
After Your Procedure

Prep is similar to a standard upper endoscopy.

  • No food or drink after midnight
  • Review medications with your provider
  • Arrange for a driver

Follow any additional instructions provided by your care team

  • Arrive early for check-in
  • IV sedation will be administered
  • The procedure takes about 20–40 minutes
  • You’ll recover briefly before going home with a driver

Plan to rest for the remainder of the day.

  • Mild chest discomfort or sore throat is common
  • A soft diet may be recommended temporarily
  • Avoid strenuous activity for 24 hours
  • Follow-up endoscopy is usually scheduled to monitor healing

Contact your provider if you experience severe chest pain, difficulty swallowing, fever, or bleeding.

At-a-glance

Prep Required
Sedation
Procedure: 20-40 min
*Driver Required

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Information on this website is for education only and not a substitute for medical advice.

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