Is Hemodynamic Gain Index (HGI) During Exercise a Novel Approach to Risk Stratification in Patients with Hypertrophic Cardiomyopathy?

Key Points

• Assess the utility of the hemodynamic gain index during exercise for risk stratification in hypertrophic cardiomyopathy.
• Evaluated hemodynamic gain index in patients with hypertrophic cardiomyopathy during exercise testing.
• Measured cardiovascular performance and related it to risk stratification outcomes.
• Utilized a cohort of patients diagnosed with hypertrophic cardiomyopathy.
• Identified significant correlation between hemodynamic gain index and adverse cardiovascular events (p<0.01).
• Increased hemodynamic gain index was associated with improved exercise capacity (HR 1.5; 95% CI 1.2-1.9).
• Lower hemodynamic gain index predicted higher risk of complications (p=0.003).