Transcatheter Aortic Valve Replacement: Procedure and Outcomes.

Area of Science:

• Cardiology
• Interventional Cardiology
• Medical Devices

Background:

• Transcatheter aortic valve replacement (TAVR) was initially indicated for severe symptomatic aortic stenosis in patients at prohibitive surgical risk.
• The application of TAVR has expanded to include patients with high and intermediate surgical risk.
• Recent trials demonstrate TAVR's noninferiority or superiority compared to surgical aortic valve replacement in low-surgical-risk populations.

Purpose of the Study:

• To present the evolution and current status of transcatheter aortic valve replacement (TAVR).
• To review different TAVR devices and procedures.
• To discuss the outcomes associated with TAVR.

Main Methods:

• Review of randomized trials and clinical data.
• Analysis of procedural outcomes and device evolution.
• Assessment of TAVR's applicability across different surgical risk strata.

Main Results:

• TAVR has demonstrated improved procedural outcomes.
• TAVR is now a viable option for patients across all surgical risk categories.
• Evidence suggests TAVR is noninferior or superior to surgical aortic valve replacement in low-risk patients.

Conclusions:

• Transcatheter aortic valve replacement (TAVR) has evolved significantly, expanding its use to lower-risk patients.
• While procedural outcomes are favorable, long-term durability of transcatheter heart valves needs continued evaluation.
• TAVR represents a major advancement in treating aortic stenosis.