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TAVR prosthesis recoil: Unknowns and implications.
Jorge A Belardi1, Pablo Lamelas1,2
1Department of Interventional Cardiology and Endovascular Therapeutics, Instituto Cardiovascular de Buenos Aires, Buenos Aires, Argentina.
Acute recoil of transcatheter aortic valve replacement (TAVR) prostheses was greater during initial deployment and in the middle stent. Further research is needed to understand predictors and clinical implications of this recoil.
Area of Science:
- Cardiovascular research
- Medical device engineering
- Interventional cardiology
Background:
- Assessing acute recoil in current balloon-expandable transcatheter aortic valve replacement (TAVR) prostheses remains challenging.
- Understanding acute recoil is crucial for optimizing TAVR outcomes.
Discussion:
- Acute recoil was more pronounced during initial deployment compared to post-dilatation.
- Recoil varied significantly across different stent regions (middle vs. inflow/outflow) and anatomical axes (antero-posterior vs. lateral).
Key Insights:
- No significant predictors for acute valvular recoil were identified in this study.
- The clinical implications of acute valvular recoil following TAVR are currently unknown.
Outlook:
- Further investigation is warranted to elucidate the underlying mechanisms and clinical relevance of TAVR acute recoil.
- Future research should focus on developing methods to predict and potentially mitigate acute recoil for improved TAVR procedures.
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