Does obesity increase left ventricular mass and alter geometry in healthy participants?
Obesity is an independent predictor of increased left ventricular mass and altered geometry, even after accounting for age and blood pressure.
Objective. —To determine the relationship of varying degrees of obesity with left ventricular mass and geometry. Design. —Survey. Setting. —Population-based epidemiologic study. Participants and Methods. —M-mode echocardiograms, which were adequate for estimation of left ventricular mass, were obtained in 3922 healthy participants of the Framingham Heart Study. Measured height and weight were used to calculate body-mass index, a measure of obesity. Results. —Body-mass index was strongly correlated with left ventricular mass. After adjusting for age and blood pressure, body-mass index remained a strong independent predictor of left ventricular mass, left ventricular wall thickness, and left ventricular internal dimension (P2. Conclusions. —Obesity is significantly correlated with left ventricular mass, even after controlling for age and blood pressure. The increase in left ventricular mass associated with increasing adiposity reflects increases in both left ventricular wall thickness and left ventricular internal dimension. (JAMA. 1991;266:231-236)
Michael S. Lauer (1991) studied this question.