Is left ventricular hypertrophy a low-level inflammatory state? A population-based cohort study

Area of Science:

• Cardiology
• Inflammation Research
• Biomarkers

Background:

• Conflicting evidence exists on the association between sub-clinical inflammation and left ventricular hypertrophy (LVH).
• Investigating the link between baseline LVH and high-sensitivity C-reactive protein (CRP) is crucial for understanding cardiovascular health.
• Previous cross-sectional studies suggest a connection, but longitudinal data is needed.

Purpose of the Study:

• To examine the association between baseline left ventricular hypertrophy (LVH) and high-sensitivity C-reactive protein (CRP) levels.
• To determine if baseline LVH predicts future CRP levels in a population-based cohort.
• To assess this association in both a general population and a healthier subgroup, excluding common confounding factors.

Main Methods:

• A population-based cohort (n=1564) and a healthier subgroup (n=515) were analyzed.
• Left ventricular hypertrophy (LVH) was assessed using ECG criteria (Cornell voltage-duration product).
• High-sensitivity C-reactive protein (CRP) levels were measured at baseline and after a six-year follow-up, with adjustments for confounders.

Main Results:

• 10.6% of subjects exhibited baseline left ventricular hypertrophy (LVH).
• Individuals with LVH had higher BMI, waist circumference, blood pressure, and CRP levels at baseline and follow-up.
• Baseline LVH independently predicted higher CRP levels at follow-up in multivariable regression models.

Conclusions:

• Baseline left ventricular hypertrophy (LVH) is associated with systemic inflammation.
• LVH predicts elevated C-reactive protein (CRP) levels at follow-up, independent of cardiovascular and metabolic risk factors.
• The inflammatory pathways linked to LVH warrant further investigation.