Related Experiment Video
Updated: Aug 25, 2025

Improved Registration of 3D CT Angiography with X-ray Fluoroscopy for Image Fusion During Transcatheter Aortic Valve Implantation
Published on: June 3, 2018
Coming down the "chimney": Percutaneous coronary intervention on a post-transcatheter aortic valve replacement with
1Athens Medical Center Athens Greece.
Insights
Accessing coronary arteries after transcatheter aortic valve replacement (TAVR) is difficult. This case highlights challenges during percutaneous coronary intervention in a complex TAVR patient.
Area of Science:
- Interventional Cardiology
- Cardiovascular Imaging
- Structural Heart Disease
Background:
- Transcatheter aortic valve replacement (TAVR) is a common procedure for aortic stenosis.
- Post-TAVR coronary access can be challenging due to valve implantation and surrounding structures.
- Percutaneous coronary intervention (PCI) may be necessary in TAVR patients with coronary artery disease.
Observation:
- A patient underwent PCI of the left circumflex artery after TAVR valve-in-valve and a left main "chimney" stent.
- The procedure involved complex anatomy and potential complications related to prior interventions.
- Specific challenges encountered during cannulation and stenting were noted.
Findings:
- Successful PCI of the left circumflex artery was achieved despite anatomical challenges.
- The case demonstrates the feasibility of complex coronary interventions in the TAVR setting.
- Detailed procedural steps and decision-making are described.
Implications:
- This case provides insights into managing complex coronary access post-TAVR.
- It highlights the importance of specialized techniques for PCI in TAVR patients.
- Improved strategies for coronary access post-TAVR may enhance patient outcomes.
Abstract:
Accessing the coronary arteries post-transcatheter aortic valve replacement is a growing challenge. This is a case of a patient requiring percutaneous coronary intervention on a left circumflex artery after a TAVR valve-in-valve and a left main "chimney" stent, describing all the challenges met during the procedure.

