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Updated: Jan 21, 2026

Endoscopic Injection Sclerotherapy Assisted by Cyanoacrylate and Clips for Gastroesophageal Varices
Published on: June 13, 2025
Over-the-scope clip for acute esophageal variceal bleeding
Carolina Mangas-Sanjuan1, Belén Martínez-Moreno2, Maryana Bozhychko1
1Endoscopy Unit, Alicante University General Hospital, Alicante Institute for Health and Biomedical Research, ISABIAL, Alicante, Spain.
The over-the-scope clip (OTSC) effectively controlled acute variceal hemorrhage (AVH) in patients with small varices when endoscopic band ligation failed. This method showed preliminary success and safety in managing difficult variceal bleeding.
Area of Science:
- Gastroenterology
- Endoscopy
- Hepatology
Background:
- Acute variceal hemorrhage (AVH) poses a significant risk in patients with portal hypertension.
- Endoscopic band ligation (EBL) is a primary treatment, but failure necessitates alternative strategies.
- The utility of over-the-scope clips (OTSC) for AVH, particularly after EBL failure, remains underexplored.
Purpose of the Study:
- To evaluate the technical success and safety of using OTSC for managing AVH in patients with small varices.
- To assess OTSC as a rescue therapy following failed endoscopic band ligation.
- To report clinical outcomes and potential complications associated with OTSC in this specific patient group.
Main Methods:
- A retrospective case series involving five adult patients with AVH due to small varices.
- OTSC (type 'a', 11 mm cap) was deployed after documented EBL failure.
- Patients had chronic liver disease with portal hypertension (mean HVPG 14.4 mmHg).
Main Results:
- Successful hemostasis of AVH was achieved in all five patients using OTSC.
- No clip-related adverse events occurred within the 30-day follow-up period.
- Two patients experienced transient dysphagia after 3 months, resolved by clip removal.
Conclusions:
- OTSC demonstrates preliminary efficacy and safety as a rescue treatment for acute variceal hemorrhage in small varices post-EBL failure.
- OTSC can be a valuable endoscopic tool for managing refractory variceal bleeding.
- Esophageal dysphagia is a potential complication, manageable with clip removal.
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