Double Balloon Enteroscopy: Advanced Endoscopic Access to the Small Intestine

Reach Beyond Conventional Endoscopy with Double Balloon Technology.

What Is Double Balloon Enteroscopy?

Double Balloon Enteroscopy (DBE) is an advanced endoscopic procedure designed to visualize the entire small intestine—something that traditional endoscopy and colonoscopy can’t achieve. It uses a specialized scope equipped with two inflatable balloons that allow doctors to “walk” the scope deep into the small bowel, inspect abnormalities, and even perform treatments in real-time.

Conditions Diagnosed or Treated by DBE

Obscure Gastrointestinal Bleeding

DBE is frequently used to identify and treat the source of unexplained GI bleeding that wasn’t found through upper endoscopy or colonoscopy. This includes small ulcers, vascular lesions, or angiodysplasias.

Crohn’s Disease and Small Bowel Inflammation

When Crohn’s disease affects the small bowel, DBE allows doctors to directly view ulcers, strictures, or active inflammation. It can also be used to take biopsies for confirmation.

Small Bowel Tumors and Polyps

Though rare, tumors or polyps can grow undetected in the small intestine. DBE enables real-time diagnosis and removal or biopsy of these growths.

Celiac Disease and Biopsy Confirmation

In cases where symptoms persist despite treatment, or when other tests are inconclusive, DBE can help biopsy deeper sections of the small intestine to confirm celiac disease.

Foreign Body Retrieval

Occasionally, swallowed objects or retained capsule endoscopes get stuck in the bowel. DBE is a valuable tool for retrieving foreign bodies safely.

How Double Balloon Enteroscopy Works

  1. Preparation: Patients may fast and take a bowel prep depending on the approach.

  2. Sedation or Anesthesia: Administered for patient comfort.

  3. Scope Insertion: A flexible endoscope with two balloons is inserted via the mouth (or rectum).

  4. Balloon Inflation: Alternating inflation of balloons “pleats” the small intestine over the scope.

  5. Visualization and Treatment: Doctors inspect, biopsy, or treat detected issues.

  6. Withdrawal and Recovery: Scope is removed, and the patient is monitored for a short time.

Risks and Complications of DBE

Common Side Effects

  • Sore throat (if oral route used)

  • Abdominal cramping or bloating

  • Nausea due to air inflation during the procedure

Serious but Rare Risks

  • Bleeding (especially after biopsies or polyp removal)

  • Bowel perforation (less than 1%)

  • Adverse reactions to anesthesia

  • Pancreatitis (extremely rare)

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