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Updated: May 6, 2026
08:28
Monitoring the Wall Mechanics During Stent Deployment in a Vessel
Published on: May 8, 2012
8.9K
Longitudinal stent deformation elongating to left main trunk
Kensuke Matsushita1, Kentaro Arakawa, Kiyoshi Hibi
1Division of Cardiology, Fujisawa City Hospital, 2-6-1 Fujisawa, Fujisawa, Kanagawa, 251-8511, Japan, matsuken_22@yahoo.co.jp.
Cardiovascular Intervention and Therapeutics
|October 26, 2013
Summary
A stent used to treat coronary artery disease unexpectedly elongated into the left main trunk during a procedure. This longitudinal stent elongation may be linked to stent design intended to improve deliverability.
Area of Science:
- Interventional Cardiology
- Medical Device Technology
Background:
- Acute coronary syndrome necessitates prompt intervention.
- Coronary artery stenosis poses a significant risk for cardiovascular events.
Observation:
- During percutaneous coronary intervention for left circumflex artery stenosis, an everolimus-eluting stent was implanted.
- Intravascular ultrasound revealed unexpected longitudinal stent elongation into the left main trunk after post-dilatation.
Findings:
- The implanted stent elongated approximately 2 mm proximally, while the distal edge remained stable.
- A second stent was successfully implanted from the left main trunk to the proximal left anterior descending artery to address the complication.
Implications:
- Stent design, specifically the number of links between hoops, may influence longitudinal behavior and contribute to elongation.
- Understanding and mitigating stent elongation is crucial for optimizing interventional cardiology procedures and patient outcomes.
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