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Left and right ventricular structural changes in obese hypertensives

Meilikemu Masaidi1, Cesare Cuspidi, Francesca Negri

  • 1Istituto di Medicina Cardiovascolare, Ospedale Maggiore Policlinico, Italy.

Blood Pressure
|April 9, 2009
PubMed

Insights

Obesity significantly increases the risk of biventricular hypertrophy in patients with essential hypertension. This finding highlights the critical impact of body mass index on cardiac structure in hypertensive individuals.

Area of Science:

  • Cardiology
  • Hypertension Research
  • Obesity Medicine

Background:

  • Obesity is a known risk factor for left ventricular hypertrophy (LVH).
  • The association between obesity and right ventricular hypertrophy (RVH) in human hypertension remains unclear.
  • This study investigates obesity's link to RVH and biventricular hypertrophy in essential hypertension.

Purpose of the Study:

  • To determine the relationship between obesity and right ventricular hypertrophy (RVH).
  • To assess the association of obesity with biventricular hypertrophy in essential hypertension.
  • To identify obesity as a predictor of cardiac structural changes in hypertensive patients.

Main Methods:

  • A cohort of essential hypertensive patients was categorized by body mass index (BMI) into three groups: normal (<25 kg/m²), overweight (25-29.9 kg/m²), and obese (≥30 kg/m²).
  • Right ventricular hypertrophy (RVH) was defined by anterior RV wall thickness.
  • Left ventricular hypertrophy (LVH) was assessed using left ventricular mass index (LVMI).

Main Results:

  • Obesity prevalence was 16.7% in the cohort.
  • Biventricular hypertrophy rates increased significantly with BMI, from 7.3% in normal BMI to 32.7% in obese patients.
  • Multivariate analysis identified BMI as the strongest correlate of biventricular hypertrophy (OR=3.58, p=0.0002).

Conclusions:

  • Obesity is strongly associated with biventricular hypertrophy in essential hypertension.
  • These findings confirm and extend previous research on obesity's detrimental effects on cardiac structure.
  • Body mass index is a key factor in the development of cardiac remodeling in hypertensive individuals.
Abstract

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