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Associations Between Metabolic Dysregulation and Stage B Heart Failure in Hispanic Populations

Miryoung Lee1, Soumya Patnaik2, Emma Molina1

  • 1School of Public Health, Department of Epidemiology, Brownsville Campus, University of Texas Health Science Center at Houston, One West University Blvd, Brownsville, Texas, USA.

Insights

Subclinical heart abnormalities like left ventricular remodeling and diastolic dysfunction are common in asymptomatic Hispanics/Latinos. Cardiometabolic risk factors, including obesity and hypertension, contribute to these early cardiac issues.

Area of Science:

  • Cardiology
  • Preventive Medicine
  • Public Health

Background:

  • Left ventricular structural abnormalities (concentric remodeling [CR] or hypertrophy [LVH]) and diastolic dysfunction (LVDD) are key to diastolic heart failure (HF).
  • These conditions are linked to prevalent cardiometabolic risk factors in Mexican Americans.

Purpose of the Study:

  • To determine the prevalence of subclinical LV structural abnormalities (LVH or CR) and LVDD (Stage B HF) in asymptomatic Hispanics/Latinos.
  • To examine the cardiometabolic determinants of these cardiac abnormalities.

Main Methods:

  • 1128 participants from the Cameron County Hispanic Cohort underwent evaluation for cardiac structure and function via echocardiography.
  • Demographic, metabolic, and body composition data, including visceral fat (dual-energy x-ray absorptiometry), were collected.
  • Weighted logistic regression analyses adjusted for covariates.

Main Results:

  • High prevalence rates observed for LV structural abnormalities (55.9%) and LVDD (19.6%).
  • Adjusted models linked age, BMI, hypertension, and metabolic syndrome to CR, LVH, or LVDD.
  • In women, increased visceral adiposity and metabolic syndrome correlated with CR or LVH.

Conclusions:

  • Stage B HF is highly prevalent in this Hispanic/Latino cohort.
  • Visceral adiposity, metabolic syndrome, and hypertension show independent, differential relationships with early cardiac abnormalities.
  • Targeted interventions are crucial for preventing progression to symptomatic heart failure.
Abstract

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