Cerebral Embolic Protection in Transcatheter Aortic Valve Replacement

Area of Science:

• Cardiovascular Medicine
• Interventional Cardiology
• Neurosurgery

Background:

• Transcatheter aortic valve replacement (TAVR) is a primary treatment for severe aortic stenosis.
• TAVR is now indicated for patients across all surgical risk categories.
• Stroke is a significant complication following TAVR, often perceived as worse than mortality.

Purpose of the Study:

• To review stroke mechanisms and predictors after TAVR.
• To describe cerebral embolic protection devices (CEPDs) and their clinical evidence.
• To provide recommendations for CEPD use in TAVR.

Main Methods:

• Review of current literature on TAVR-associated stroke.
• Description of available cerebral embolic protection devices, their designs, and clinical data.
• Analysis of ongoing randomized controlled trials evaluating CEPDs during TAVR.

Main Results:

• Stroke remains a feared complication despite TAVR advancements.
• Various CEPDs exist with evolving clinical data.
• Evidence for routine CEPD use in TAVR is still developing.

Conclusions:

• Understanding stroke mechanisms is crucial for prevention.
• Cerebral embolic protection devices show promise in mitigating stroke risk during TAVR.
• Further research and ongoing trials will clarify the role of CEPDs in TAVR.