Stricture (Post‑Bariatric)
Obesity Videos
Overview
A post‑bariatric stricture is a narrowing that develops after weight‑loss surgery. It most commonly occurs at the gastrojejunal (GJ) anastomosis after gastric bypass or at the incisura angularis after sleeve gastrectomy. Strictures cause difficulty swallowing, vomiting, food intolerance, and dehydration. Early diagnosis and treatment—usually with endoscopic dilation—are highly effective.
Causes
Strictures may result from scar tissue formation, inflammation, ischemia at the anastomosis, technical factors during surgery, or twisting/narrowing of the gastric sleeve. Contributing factors include smoking, NSAID use, ulcers, and poor healing.
Risk Factors
Risk factors include gastric bypass surgery, sleeve gastrectomy, marginal ulcers, smoking, NSAID use, poor nutrition, and early postoperative inflammation.
How Strictures Affect the Body
A narrowed passage prevents food from moving normally through the stomach or anastomosis. This leads to vomiting, dehydration, malnutrition, and inability to tolerate solid foods. Severe cases may cause weight loss, electrolyte imbalance, and hospitalization.
Complications
Complications include dehydration, malnutrition, aspiration, ulcer formation, severe vomiting, and need for repeated endoscopic dilations. Untreated strictures can lead to complete obstruction.
Symptoms & Signs
Symptoms include difficulty swallowing, vomiting after meals, food “getting stuck,” chest or epigastric pressure, regurgitation, intolerance to solids, and progressive worsening of symptoms.
Diagnosis
Diagnosis includes upper endoscopy (gold standard), upper GI contrast study, and clinical evaluation of symptoms. Endoscopy confirms the location and severity of the narrowing.
Differential Diagnosis
Includes marginal ulcer, bezoar, kinking of the sleeve, hiatal hernia, gastroparesis, esophageal stricture, and anastomotic leak (early postoperative).
Lifestyle Modifications
Patients should avoid NSAIDs, stop smoking, eat slowly, chew thoroughly, avoid dry meats and breads, and maintain hydration. Soft diets may help temporarily until treatment.
Treatment Options
Treatment includes endoscopic balloon dilation (first‑line), stent placement for severe cases, ulcer treatment if present, and surgical revision when endoscopic therapy fails. Most strictures resolve with 1–3 dilations.
When to See a Doctor
Seek evaluation if you experience vomiting, difficulty swallowing, inability to tolerate solids, dehydration, or progressive food intolerance after bariatric surgery.
When to Seek Treatment
Treatment is recommended when symptoms interfere with eating, hydration, or nutrition, or when imaging or endoscopy confirms narrowing.
Long-Term Outlook
With proper treatment, long‑term outcomes are excellent. Recurrence is uncommon but may require repeat dilation. Avoiding smoking and NSAIDs reduces risk.
Prognosis
Most patients improve significantly after endoscopic dilation. Early treatment prevents malnutrition and avoids the need for surgical revision.
Why Choose Dr. de la Cruz‑Muñoz
Dr. Nestor de la Cruz‑Muñoz specializes in diagnosing and treating post‑bariatric strictures with advanced endoscopic and surgical techniques, ensuring rapid symptom relief and long‑term success.
