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Intravascular Ultrasound-Guided and Angiography-Guided Chimney Stenting for Proactive Coronary Protection in
Phan Thao Nguyen1, Nguyen The Huy1, Luong Hoang Long2
1Cardiovascular Center, E Hospital, Hanoi, Vietnam.
JACC. Case Reports
|June 18, 2026
Summary
A proactive strategy using intravascular ultrasound (IVUS) and chimney stenting during transcatheter aortic valve replacement (TAVR) effectively protected coronary arteries in high-risk patients. This imaging-guided approach ensures optimal outcomes for complex TAVR cases.
Area of Science:
- Cardiology
- Interventional Cardiology
- Medical Imaging
Background:
- Transcatheter aortic valve replacement (TAVR) carries risks for coronary artery obstruction, especially in patients with unfavorable anatomy.
- Traditional angiography may not fully assess coronary ostial compromise or leaflet proximity during TAVR.
- A proactive approach to coronary protection is crucial for high-risk TAVR candidates.
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