Esophageal Web: Diagnosis and Treatment
Esophageal webs should be diagnosed with barium swallow esophagography and/or upper endoscopy, then treated with wire-guided bougie or balloon dilation under endoscopic control, typically achieving resolution in 1-3 sessions.
Diagnosis
Clinical Presentation
Esophageal webs typically present with:
- Dysphagia to solid foods (most common symptom)
- Intermittent food impaction (particularly meat)
- Weight loss in chronic cases
- Non-progressive symptoms
Important caveat: Only about one-third of patients with documented webs actually report dysphagia symptoms 1, meaning webs can be incidentally discovered and may not always correlate with symptoms.
Diagnostic Workup
Imaging and Endoscopy:
- Barium swallow esophagography: Shows a thin indentation of the esophageal lumen, typically in the cervical segment 2
- Upper endoscopy with biopsy: Essential for direct visualization and to exclude other pathology 2
- Evaluate for associated conditions: Check complete blood count (for Plummer-Vinson syndrome), celiac antibodies (antigliadin and antiendomysial), and history of radiation exposure 2, 1
Key finding: Webs are more common in patients with prior head and neck radiation (70% vs 31%, relative risk 2.26) 1, so radiation history should raise clinical suspicion.
Treatment
Endoscopic Dilation Technique
Use either wire-guided bougie or balloon dilators—both are equally safe and effective 3. The choice depends on local expertise and equipment availability.
Initial Dilation Parameters:
- Start with 10-12 mm diameter (30-36F) for very narrow strictures not passable by adult gastroscope 3
- Use no more than 3 successively larger diameter increments per session (though this "rule of three" is not strongly evidence-based) 3
- For very tight or long strictures, limit to 1-2 size increments initially for safety 3
Safety Requirements:
- Always use wire-guided or endoscopically controlled techniques—never use blind Maloney bougies 3
- Fluoroscopy is not required for simple webs (which are short, concentric, straight strictures) 3
- Use fluoroscopy only for high-risk, complex, or angulated strictures 3
Expected Outcomes
Simple webs (including esophageal webs) typically require 1-3 dilation sessions to achieve dysphagia relief 3. Only 25-35% of patients need additional sessions, with >95% requiring no more than 5 total dilations 3.
Target endpoint: Continue weekly or bi-weekly dilations until easy passage of ≥15 mm dilator is achieved with symptomatic improvement 3.
Post-Procedure Management
Immediate Aftercare:
- Monitor for at least 2 hours in recovery 3
- Ensure patient tolerates water before discharge 3
- Provide written instructions on diet, fluids, and medications 3
Complication Monitoring:
Suspect perforation if patient develops:
- Persistent chest pain (transient pain is common and benign)
- Fever
- Breathlessness
- Tachycardia
If perforation suspected: Perform CT scan with oral contrast immediately 3. Consider endoscopic re-inspection and possible stent placement 3.
Follow-up:
- Provide contact information for on-call team 3
- Routine imaging is not needed unless symptoms develop during recovery 3
Common Pitfalls to Avoid
- Don't use blind Maloney dilators: Higher perforation risk, especially in complex anatomy 3
- Don't over-dilate initially: Aggressive dilation increases perforation risk without improving outcomes
- Don't assume all dysphagia is from the web: Rule out associated conditions (Plummer-Vinson, celiac disease, radiation effects) 2
- Don't discharge too early: Ensure 2-hour observation and water tolerance before release 3