Clinical Report: Targeted Metal Cell Removal During Open TAVR Procedure

Overview

This case study presents a novel approach to preserve coronary access during open transcatheter aortic valve replacement (TAVR) by selectively excising metal cells facing the left main coronary artery. The intervention resulted in immediate resolution of severe stenosis and paravalvular leak, with sustained clinical improvement at six-month follow-up.

Background

Coronary access after TAVR is a significant concern, especially as TAVR is increasingly performed in younger patients who may require future coronary interventions. Current re-intervention strategies, such as valve-in-valve TAVR and surgical aortic valve replacement, have limitations that can complicate future procedures. This case highlights an innovative technique that addresses these challenges while maintaining valve functionality.

Data Highlights

No numerical data or trial data provided in the article.

Key Findings

• A 78-year-old female with severe prosthetic stenosis and moderate paravalvular leak underwent open TAVR explantation.
• Selective excision of metal cells facing the left main coronary artery was performed during the procedure.
• The intervention resulted in immediate resolution of severe stenosis and elimination of paravalvular leak.
• The patient demonstrated sustained clinical improvement at six-month follow-up.
• This technique may enhance coronary access for future interventions in high-risk patients.

Clinical Implications

Expand on how this technique compares to existing methods in terms of risks and benefits.

Conclusion

Suggest future research directions or studies needed to validate this technique.

Related Resources & Content

1. 2025 ESC/EACTS Guidelines for the management of valvular heart disease
2. Clinical Research in Cardiology — Impact of Preexisting Right Ventricular Remodeling on Symptoms and Prognosis Following Transcatheter Repair of the Tricuspid Valve
3. Clinical Research in Cardiology — Concurrent transcatheter valve-in-valve procedures for severely compromised bioprosthetic aortic and mitral valves
4. Clinical Research in Cardiology — Unforeseen Injury During a Deliberate Procedure—Laceration of the Sinus of Valsalva in BASILICA Technique
5. Feasibility of coronary access after transcatheter aortic valve implantation (TAVI): a systematic review and meta-analysis of observational studies
6. 26-A-14225-ACC NATIONAL REAL-WORLD OUTCOMES OF REDO TRANSCATHETER AORTIC VALVE REPLACEMENT AND SURGICAL EXPLANTATION | JACC
7. Clinical Research in Cardiology — Utilizing Surface and Intracardiac Electrocardiograms to Differentiate Conduction Abnormalities Following CoreValve Implantation
8. 2025 ESC/EACTS Guidelines for the management of valvular heart disease
9. Feasibility of coronary access after transcatheter aortic valve implantation (TAVI): a systematic review and meta-analysis of observational studies - PubMed
10. 26-A-14225-ACC NATIONAL REAL-WORLD OUTCOMES OF REDO TRANSCATHETER AORTIC VALVE REPLACEMENT AND SURGICAL EXPLANTATION | JACC