Acute Valve Syndrome in Aortic Stenosis

Area of Science:

• Cardiology
• Cardiac Surgery
• Health Outcomes Research

Background:

• Aortic stenosis (AS) is a significant cardiovascular condition requiring timely intervention.
• Clinical presentation severity impacts outcomes following aortic valve replacement (AVR).

Purpose of the Study:

• To evaluate the impact of clinical presentation on outcomes after AVR for AS.
• To compare mortality and heart failure hospitalization rates across different AS symptom severities.

Main Methods:

• Analysis of a real-world database (e.g., egnite) of over 17,000 patients undergoing AVR for AS.
• Classification of patients into asymptomatic, progressive valve syndrome (PVS), and acute valve syndrome (AVS) groups.
• Kaplan-Meier estimates and log-rank tests to compare outcomes.

Main Results:

• The majority of patients (51.7%) presented with acute valve syndrome (AVS).
• Two-year mortality rates were 5.8% (asymptomatic), 7.6% (PVS), and 17.5% (AVS).
• Two-year heart failure hospitalization rates were 11.1% (asymptomatic), 19.0% (PVS), and 41.5% (AVS).
• AVS presentation significantly increased mortality risk post-AVR (HR 2.2).

Conclusions:

• Most patients undergoing AVR for AS present with acute or advanced symptoms (AVS).
• AVS presentation is strongly associated with increased mortality and heart failure hospitalization after AVR.
• These findings underscore the importance of recognizing and treating AS promptly to mitigate adverse outcomes.