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Updated: Jul 10, 2026
06:59
Catheter-based Endovascular Angioplasty for Fibrosing Mediastinitis-associated Pulmonary Vein Stenosis
Published on: August 26, 2025
Dislodged caval stent in right pulmonary artery
Kuan-Ming Chiu1, Shu-Hsun Chu, Chih-Yang Chan
1Division of Cardiovascular Surgery, Far-Eastern Memorial Hospital, Ban-Ciao, Taiwan.
Summary
Self-expandable stents for central vein occlusion can dislodge, migrating into the heart and pulmonary artery. This case highlights a rare complication of percutaneous intervention for end-stage renal disease patients.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Nephrology
Background:
- Percutaneous intervention for central vein occlusion is increasingly utilized.
- Self-expandable stents are commonly used due to ease of deployment.
- Potential complications, such as stent migration, require careful consideration.
Observation:
- An 82-year-old female patient with end-stage renal disease presented with central vein occlusion.
- The patient underwent central vein stenting using a self-expandable stent.
- Stent dislodgement and subsequent migration were observed post-procedure.
Findings:
- The dislodged self-expandable stent migrated into the right ventricle.
- Further migration occurred, with the stent reaching the right pulmonary artery.
- Chest radiography confirmed the rare complication of stent migration.
Implications:
- This case underscores the risk of stent migration with self-expandable stents in central vein interventions.
- Awareness of this rare complication is crucial for interventionalists.
- Careful patient selection and post-procedure monitoring are essential to mitigate risks.
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