Left ventricular myocardial mass and heart rhythm disturbances in hypertensive population
https://doi.org/10.18705/1607-419X-2011-17-3-257-263
Abstract
Framingham Heart Study identified left ventricular hypertrophy (LVH) as an independent risk factor for cardiovascular morbidity and mortality, including sudden cardiac death, and acute myocardial infarction. Thickened myocardial wall is also a source for heart rhythm disturbances. Objective. To estimate the rate of arrhythmias in hypertensive patients depending on left ventricular myocardial mass index (MMI). Design and methods. The study cohort included 107 hypertensive patients. The average age was 49,4 ± 10,9 years. Based on MMI value patients were divided into four groups. Ventricular arrhythmias were categorized according to Lown-Wolf classification. Results. The tendency to the increase of high gradation ventricular arrhythmias with the MMI augmentation was found out. There are significant differences of high gradation ventricular arrhythmias rate between the groups with different MMI values. There are positive correlations between LV MMI and the number of both ventricular and supraventricular arrhythmias per hour; between one-dimensional left atrium size and MMI (r = 0,53; p < 0,0001), left atrium volume and MMI (r = 0,32; p = 0,001); between one-dimensional left atrium size and isovolumetric ventricular relaxation time (IVRT) (r = 0,36; p < 0,001), as well as between MMI and IVRT (r = 0,43; p < 0,001). Conclusion. The frequency of threatening ventricular arrhythmias increases with MMI growth. MMI can be a prognostic factor of threatening ventricular arrhythmias in hypertensive patients with LVH.
About the Authors
E. S. Rebeko
Republic Scientific and Practical Center «Cardiology», Minsk
Russian Federation
Russian Federation
A. G. Mrochek
Republic Scientific and Practical Center «Cardiology», Minsk
Russian Federation
Russian Federation
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Review
For citations:
Rebeko E.S., Mrochek A.G. Left ventricular myocardial mass and heart rhythm disturbances in hypertensive population. "Arterial’naya Gipertenziya" ("Arterial Hypertension"). 2011;17(3):257-263. (In Russ.) https://doi.org/10.18705/1607-419X-2011-17-3-257-263
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