ArticleInternational journal of general medicine2021
Association Between Left Atrial Volume Index and Ventricular Repolarization Heterogeneity: A Cross-Sectional Study of a Healthy Chinese Population.
Article in International journal of general medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundElectromechanical coupling may play a significant role in the association between abnormal myocardial mechanics and heterogeneity of repolarization. This study sought to assess the potential relationship between the left atrial volume index (LAVI), which is an important marker of cardiac diastolic function, and ventricular repolarization variables, such as the QT interval, Tpeak-to-Tend (Tpe) interval and Tpe/QT ratio, in an apparently healthy Chinese population.
methodsThis was a community-based cross-sectional study conducted in Shenyang, China. A total of 414 healthy subjects aged 35-91 years, including 186 men (44.9%), were enrolled. In addition to performing clinical and laboratory measurements, all subjects underwent comprehensive echocardiography and standard 12-lead electrocardiography. Echocardiographic and electrocardiographic results were analysed separately and in a blinded fashion. Correlation and regression analyses were applied to determine associations.
resultsSubjects were divided into four groups according to quartile of LAVI levels (<16.0, 16.0-18.9, 19.0-22.5 and >22.5 mL/m
conclusionEchocardiographic LAVI is linearly associated with ventricular repolarization variables even in healthy people.
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