Redo-Transcatheter Aortic Valve Replacement: Strategies When the First Transcatheter Aortic Valve Replacement Fails

Area of Science:

• Cardiology
• Interventional Cardiology
• Biomedical Engineering

Background:

• Transcatheter aortic valve replacement (TAVR) is a primary treatment for symptomatic severe aortic stenosis, particularly in high-risk patients.
• Recent guidelines expand TAVR indications to lower-risk patients aged 65-80, increasing the focus on long-term valve durability.
• Bioprosthetic valve failure is a growing concern in the expanding TAVR population, necessitating strategies for reintervention.

Purpose of the Study:

• To review bioprosthetic valve dysfunction after TAVR.
• To summarize current data on reintervention for failed TAVR, including repeat TAVR and surgical options.
• To propose an evaluation and management framework for patients experiencing TAVR valve failure.

Main Methods:

• Literature review of studies on TAVR valve durability and failure.
• Analysis of existing data on redo-TAVR and surgical valve replacement after TAVR.
• Synthesis of evidence to develop a clinical decision-making approach.

Main Results:

• Bioprosthetic TAVR valves can fail over time, with implications for patient management.
• Redo-TAVR is an emerging option for managing failed TAVR, with accumulating evidence supporting its feasibility and efficacy.
• Surgical valve-in-valve or explantation remain viable options for specific patient profiles.

Conclusions:

• Long-term durability of TAVR valves is critical as patient populations expand.
• A structured approach is needed to evaluate patients with suspected TAVR valve failure.
• Repeat TAVR and surgical interventions are important therapeutic options for managing bioprosthetic valve failure.