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Updated: Jun 12, 2026
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Fabrication of Small Caliber Stent-grafts Using Electrospinning and Balloon Expandable Bare Metal Stents
Published on: October 26, 2016
Stone extraction balloon-guided repeat self-expanding metal stent placement
Hyung Hun Kim1, Jeong Seop Moon, Soo Hyung Ryu
1Division of Gastroenterology, Department of Internal Medicine, Seoul Paik Hospital, Inje University College of Medicine, Seoul 100-032, South Korea.
World Journal of Gastroenterology
|June 24, 2010
Summary
A rare complication during self-expanding metal stent (SEMS) redeployment involved guidewire entanglement, worsening obstruction. A novel balloon-guided technique was developed to prevent this issue during repeat SEMS placement for upper gastrointestinal malignancy.
Area of Science:
- Gastroenterology
- Interventional Endoscopy
- Oncology
Background:
- Self-expanding metal stents (SEMS) are effective for palliation in malignant upper gastrointestinal obstruction.
- Common complications include tumor ingrowth, obstruction, and migration.
- Redeployment of a second SEMS is a treatment option for complete occlusion.
Observation:
- An unusual complication occurred during SEMS redeployment: the guidewire passed through the first SEMS mesh.
- This led to entanglement of the second SEMS with the first, causing distortion and malfunction.
- The entanglement worsened gastric outlet obstruction.
Findings:
- A novel technique using a stone extraction balloon was studied to guide repeat SEMS placement.
- This method aims to prevent guidewire entanglement with the first SEMS.
- This is the first report detailing SEMS mesh entanglement and a balloon-guided technique to mitigate it.
Implications:
- The findings suggest a new approach to improve the safety of SEMS redeployment.
- This technique may reduce complications and improve outcomes for patients with malignant upper GI obstruction.
- Further research is warranted to validate the efficacy and safety of this novel technique.
