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  • Title: Is left ventricular hypertrophy a low-level inflammatory state? A population-based cohort study.
    Author: Bo S, Mandrile C, Milanesio N, Pagani A, Gentile L, Gambino R, Villois P, Ghinamo L, Canil S, Durazzo M, Cassader M, Cavallo-Perin P.
    Journal: Nutr Metab Cardiovasc Dis; 2012 Aug; 22(8):668-76. PubMed ID: 21429721.
    Abstract:
    BACKGROUND AND AIMS: Cross-sectional studies have shown that chronic sub-clinical inflammation is associated with left ventricular hypertrophy (LVH), but results are conflicting. We investigated the association between baseline LVH and high-sensitivity C-reactive protein (CRP) values, both cross-sectionally and after a six-year-follow-up, in a population-based cohort (n = 1564) and a subgroup from this cohort (n = 515), without obesity, diabetes, metabolic syndrome or any drugs. METHODS AND RESULTS: ECG tracings at baseline were interpreted according to the Cornell voltage-duration product criteria: 166/1564 subjects (10.6%) showed LVH. Patients with baseline LVH showed increased BMI, waist circumference, blood pressure, and a worse metabolic pattern. Their CRP values both at baseline and at follow-up were almost two-fold higher than in patients without LVH. Similar results were found in the healthier sub-sample. In a multiple regression model, CRP at follow-up was directly associated with baseline LVH (expressed as Cornell voltage-duration product) in the whole cohort (β = 0.0003; 95%CI 0.0002-0.0006; p < 0.001) and in the sub-sample (β = 0.0003; 0.0002-0.0004; p < 0.001), after adjusting for age, sex, BMI, waist circumference, smoking, exercise levels, blood pressure and baseline CRP values. CONCLUSION: Baseline LVH, which is associated with systemic inflammation, predicts increased CRP values at follow-up, independently of cardiovascular and metabolic risk factors, both in a population-based cohort and a healthier sub-sample. The inflammatory consequences of LVH might be an intriguing subject for further researches.
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