(Circulation. 2001;103:836.)
© 2001 American Heart Association, Inc.
Clinical Investigation and Reports |
Dyslipidemia and an Unfavorable Fatty Acid Profile Predict Left Ventricular Hypertrophy 20 Years Later
From the Departments of Public Health and Caring Sciences (J.S., B.V., H.O.L.) and Medical Sciences (L.L., B.A.), Uppsala University, Sweden, and Department of Nutrition (A.A.), KTL (National Public Health Institute), Helsinki, Finland.
Correspondence to Johan Sundström, Department of Public Health and Caring Sciences/Geriatrics, PO Box 609, SE-75125 Uppsala, Sweden (Kålsängsgränd 10D, SE-75319 Uppsala, Sweden). E-mail johan.sundstrom{at}geriatrik.uu.se
Background—Left ventricular hypertrophy (LVH) is a common risk factor for cardiovascular mortality. Causes other than hypertension have not previously been investigated longitudinally. The aim of the present study was to determine hemodynamic, metabolic, and psychosocial predictors at 50 years of age for the prevalence of echocardiographic LVH and geometric subtypes at age 70 by use of a large sample of men from the general population followed up for 20 years.
Methods and Results—In 1970 to 1973, all men born from 1920 to 1924 and residing in Uppsala County, Sweden, were invited to participate in a health survey aimed at identifying risk factors for cardiovascular disease. At a reinvestigation 20 years later, echocardiographic left ventricular mass index was determined in 475 subjects. A 1-SD increase in body mass index, systolic or diastolic blood pressure, fasting LDL/HDL cholesterol, serum triglycerides, or the serum cholesterol ester proportion of several saturated fatty acids or oleic acid at age 50 significantly increased the odds of having LVH at age 70 by 27% to 41%, whereas an increase in linoleic acid proportion was protective. Almost all metabolic predictors were independent of ischemic heart disease, valvular disease, and use of antihypertensive medication at age 70.
Conclusions—Dyslipidemia and indices of a low dietary intake of linoleic acid and high intake of saturated and monounsaturated fats, as well as hypertension and obesity, at age 50 predicted the prevalence of LVH 20 years later in this prospective longitudinal cohort study, thereby suggesting that lipids may be important in the origin of LVH.
Key Words: hypertrophy • lipids • fatty acids • insulin • epidemiology
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