Indian Asian ethnicity was associated with attenuated mitral annular systolic velocity (8.9 vs 9.5 cm/s, p<0.001) and higher relative wall thickness (0.37 vs 0.35) compared to European whites.
Observational (n=458)
Are there ethnicity-related differences in left ventricular function, structure, and geometry between healthy UK Indian Asian and European white subjects?
Healthy UK Indian Asians demonstrate attenuated longitudinal LV function, higher LV filling pressures, and greater concentric remodeling compared to European whites, which may have implications for risk prediction and heart failure diagnosis.
Absolute Event Rate: 8.9% vs 9.5%
p-value: p=<0.001
OBJECTIVES: The authors studied healthy UK Indian Asian and European white subjects to assess whether functional, structural and geometrical properties of the left heart are intrinsically related to ethnicity. BACKGROUND: Quantitative assessment of cardiac function and structure is necessary to diagnose heart failure syndromes and is validated to refine risk prediction. A better understanding of the demographic factors that influence these variables is required. METHODS: 458 healthy subjects were recruited from the London Life Sciences Prospective Population (LOLIPOP) study. They underwent 2-D and tissue Doppler echocardiography for quantification of left ventricular (LV) function, LV volumes, left atrial volume index (LAVI), left ventricular mass index (LVMI) and relative wall thickness (RWT). RESULTS: Indian Asians had attenuated mitral annular systolic velocity (8.9 cm/s vs 9.5 cm/s, p<0.001), lower mitral annular early diastolic velocity (10.3 cm/s vs 11.0 cm/s, p<0.001) and higher E/Ea ratio (7.9 vs 7.0, p<0.001) compared to European white subjects. Although Indian Asians had significantly smaller left heart volumes and LVMI, they had a significantly higher RWT (0.37 vs 0.35, p<0.001). After adjustment for covariates, these ethnicity-related differences remained highly significant (p<0.001). CONCLUSION: Compared to European white people, Indian Asians had attenuated longitudinal LV function, higher LV filling pressure and demonstrated a greater degree of concentric remodelling independent of other demographic and clinical parameters.
Chahal et al. (Thu,) conducted a observational in Healthy (n=458). Indian Asian ethnicity vs. European white ethnicity was evaluated on Mitral annular systolic velocity (p=<0.001). Indian Asian ethnicity was associated with attenuated mitral annular systolic velocity (8.9 vs 9.5 cm/s, p<0.001) and higher relative wall thickness (0.37 vs 0.35) compared to European whites.