Aortic stenosis calcium scoring in a racially mixed sample

Area of Science:

• Cardiology
• Radiology
• Medical Imaging

Background:

• Aortic stenosis (AS) is a growing concern with an aging population.
• Previous studies suggest men have greater aortic valve calcification (AVC) than women in severe AS.
• Existing data primarily focus on Caucasian populations, necessitating broader verification.

Purpose of the Study:

• To investigate gender differences in AVC in severe AS patients.
• To determine if these differences persist across racial subgroups.
• To validate previous findings in a diverse patient cohort.

Main Methods:

• Retrospective analysis of 137 severe AS patients undergoing valve replacement.
• Computed tomography (CT) scans used to quantify aortic valve calcification (AVC) within six months of surgery.
• Comparison of AVC scores between genders and across racial groups using statistical analysis.

Main Results:

• Men exhibited significantly higher mean AVC scores (3646) compared to women (2433) (p=0.001).
• Gender remained a significant predictor of AVC on multivariate analysis in the entire cohort and the non-Caucasian subgroup.
• No significant difference in aortic valve area (AVA) indexed to body surface area (BSA) was observed between genders or racial groups.

Conclusions:

• Men with severe AS consistently demonstrate higher AVC than women, regardless of their racial background.
• These findings align with prior research conducted in predominantly Caucasian populations.
• Gender is a significant factor influencing AVC accumulation in severe AS across diverse ethnicities.