Carotid atherosclerosis in familial hypercholesterolemia.

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Abstract
Common and internal carotids have been studied by noninvasive method (echo-Doppler) in 30 normotensive patients with familial hypercholesterolemia (FH). Vascular lesions were detected in 14 patients (46%), who presented one or more lesions of different degree (between 1-15% and 16-49%). In one case, only one carotid had stenosis greater than 50%. Severity and number of stenosis were related to age and levels of hypercholesterolemia. FH patients with carotid lesions showed a significantly higher LDL-cholesterol (p less than 0.01) and plasma apolipoprotein B (p less than 0.001) concentrations and a significantly lower HDL-cholesterol (p less than 0.05) and plasma apolipoprotein A (p less than 0.001) levels as compared to those with normal echo-Doppler findings. These data indicate that investigation of arterial districts other than coronaries are useful in quantitative evaluation of atherosclerotic involvement.