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Published on: July 11, 2025
Initial experience with retrograde overtube-assisted enteroscopy using a spiral tip overtube.
Luis F Lara1, Shailender Singh, Jayaprakash Sreenarasimhaiah
1Division of Gastroenterology, Department of Internal Medicine, Baylor University Medical Center (Lara); and Division of Digestive and Liver Diseases, Department of Internal Medicine, The University of Texas Southwestern Medical Center (Singh, Sreenarasimhaiah).
Spiral overtube-assisted enteroscopy shows promise for retrograde small bowel evaluation. This technique was diagnostic in most patients and enabled therapeutic interventions without complications.
Area of Science:
- Gastroenterology
- Endoscopy
Background:
- Overtube-assisted enteroscopy enhances small bowel therapeutic capabilities.
- The efficacy of spiral overtube-assisted endoscopy for retrograde small bowel assessment is currently unknown.
Purpose of the Study:
- To evaluate the effectiveness of spiral tip overtube-assisted endoscopy for retrograde small bowel examination.
Main Methods:
- Retrospective review of retrograde enteroscopy procedures in six patients.
- Cecal retroflexion was used to access the terminal ileum.
- Intubation of 40-130 cm of the distal small bowel was achieved.
Main Results:
- The procedure was diagnostic in four patients (67%).
- Therapeutic interventions were successful in three patients (50%), including polypectomy, obstruction resolution, and stricture release.
- No procedure-related complications were reported.
Conclusions:
- Spiral overtube-assisted enteroscopy is a viable option for retrograde small bowel evaluation.
- Further research is needed to compare different overtube-assisted enteroscopy methods for optimal small bowel visualization.
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