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  • Title: Prognostic value of left ventricular hypertrophy in hypertensive patients: A meta-analysis of electrocardiographic studies.
    Author: Zhang H, Hu L, Wei X.
    Journal: J Clin Hypertens (Greenwich); 2020 Feb; 22(2):254-260. PubMed ID: 31955500.
    Abstract:
    Electrocardiographic left ventricular hypertrophy (LVH) has been used to predict adverse outcomes in different clinical settings. This meta-analysis aimed to compare the prognostic value of different electrocardiographic criteria of LVH at baseline in hypertensive patients. A systematic literature search was conducted in PubMed and Embase databases until December 3, 2019. Cohort studies that reported the association of baseline electrocardiographic LVH (Sokolow-Lyon voltage, Cornell voltage or Cornell product) with all-cause mortality or major cardiovascular events in hypertensive patients were included. The prognostic value of LVH was expressed by the risk ratio (RR) with 95% confidence interval (CI). Nine studies involving 41 870 hypertensive patients were identified. Comparison with those with and without LVH patients indicated that the pooled RR value of all-cause mortality was 1.30 (95% CI 1.01-1.66) for the Sokolow-Lyon voltage criteria, 1.33 (95% CI 1.20-1.47) for the Cornell voltage criteria, and 1.31 (95% CI 0.97-1.78) for the Cornell product criteria. In addition, the pooled RR of major cardiovascular events was 1.53 (95% CI 1.27-1.86) for the Sokolow-Lyon criteria and 1.46 (95% CI 1.22-1.76) for the Cornell voltage criteria, respectively. This meta-analysis suggests that different electrocardiographic criteria for detecting LVH at baseline differ in prediction of all-cause mortality in patients with hypertension. LVH detected by the Cornell voltage and Sokolow-Lyon criteria can independently predict the major cardiovascular events in hypertensive patients.
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