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[Structural valve deterioration after transcatheter aortic valve replacement: a research update].
Mengyun Yan1, Zhengang Zhao2, Mao Chen3
1Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, China. ymy18770086706@163.com.
Summary
Structural valve deterioration (SVD) involves irreversible changes in prosthetic heart valves, leading to stenosis or regurgitation. Management strategies for SVD after trans-catheter aortic valve replacement (TAVR) include redo-TAVR and surgical aortic valve replacement (SAVR).
Area of Science:
- Cardiovascular Medicine
- Biomaterials Science
- Surgical Innovation
Background:
- Structural valve deterioration (SVD) encompasses irreversible pathological changes in prosthetic heart valves, including fibrosis, calcification, and mechanical failure, leading to valve dysfunction.
- Risk factors for SVD are multifactorial, involving patient characteristics, prosthetic valve properties, and surgical techniques.
- Accurate clinical assessment of SVD relies on complementary imaging modalities like echocardiography, CT, and MRI.
Purpose of the Study:
- To review the latest advancements in understanding and managing structural valve deterioration (SVD) following trans-catheter aortic valve replacement (TAVR).
- To provide insights into the durability of bioprosthetic valves and guide clinical interventions for SVD.
- To discuss current and emerging treatment strategies for SVD after TAVR.
Main Methods:
- Review of current literature on structural valve deterioration (SVD) after trans-catheter aortic valve replacement (TAVR).
- Analysis of risk factors, mechanisms, and clinical assessment of SVD.
- Evaluation of management strategies including redo-TAVR, surgical aortic valve replacement (SAVR), and the SURPLUS technique.
Main Results:
- SVD is characterized by intrinsic pathological changes leading to valve stenosis or regurgitation.
- Multiple factors contribute to SVD, including patient, valve, and surgical elements.
- Redo-TAVR is a common, minimally invasive approach for SVD, though indications require further clarification. SAVR and SURPLUS offer alternative strategies based on patient risk and suitability.
Conclusions:
- Structural valve deterioration (SVD) remains a critical concern for the long-term durability of bioprosthetic heart valves after TAVR.
- Optimizing patient selection and surgical techniques for redo-TAVR, SAVR, and SURPLUS is essential for effective SVD management.
- Continued research into SVD mechanisms and novel interventions is crucial for improving patient outcomes.
Keywords:
Aortic valveBioprosthetic valveReviewStructural valve deteriorationTranscatheter aortic valve replacementMore Related Videos
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