Stenosis in gastric bypass: Endoscopic management

Area of Science:

• Bariatric Surgery
• Gastroenterology
• Surgical Complications

Background:

• Morbid obesity is often treated with gastric bypass.
• Stenosis of the gastrojejunal anastomosis is a known complication.
• Pathophysiological mechanisms of stenosis are not well understood.

Purpose of the Study:

• To review the classification, diagnosis, and treatment of gastrojejunal strictures after gastric bypass.
• To evaluate the efficacy and safety of endoscopic dilation versus surgical revision.

Main Methods:

• Literature review on gastrojejunal strictures.
• Classification of strictures by onset, mechanism, and endoscopic appearance.
• Analysis of treatment outcomes for endoscopic dilation and surgical revision.

Main Results:

• Gastrojejunal strictures are diagnosed via endoscopy.
• Endoscopic dilation (balloon or bouginage) and surgical revision are primary treatments.
• Both dilation techniques are safe, effective, and outpatient procedures.
• Through-the-scope (TTS) balloon catheters are often preferred.
• Most strictures resolve within 1-2 dilation sessions.
• Reconstructive surgery is rarely required.

Conclusions:

• Endoscopic dilation is a safe and effective primary treatment for gastrojejunal strictures.
• TTS balloon dilation is a commonly preferred method.
• Surgical revision is reserved for rare, refractory cases.