Journal
ATHEROSCLEROSIS
Volume 163, Issue 1, Pages 193-197Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/S0021-9150(02)00003-5
Keywords
risk factor; lipids; lipoprotein; endothelial function; flow mediated dilatation; children; familial hypercholesterolemia
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Objectives: in patients with familial hypercholesterolemia (FH), the propensity towards atherosclerosis may vary considerably. In the general population, a positive family history is associated with an increased risk for cardiovascular events. Since endothelial dysfunction is predictive for future cardiovascular events, we evaluated whether FH-children with a positive family history of premature cardiovascular disease have more pronounced endothelial dysfunction compared to children with a negative family history. Study design: 50 FH children, 10-18 years, participated in this Study. Thirty-one children had a positive family history for cardiovascular events (fh(+)) and 19 children had no events in the family (fh(-)). Nineteen matched siblings participated as controls. Endothelial function was assessed by testing the flow mediated dilatation (FMD) of the brachial artery. Results: baseline characteristics were comparable for fh(+), fh(-) and controls. Lipid levels were significantly higher in FH children. In FH, FMD was impaired compared to controls (11.7 +/- 4.4 vs. 15.6 +/- 6.8%, P < 0.03). In addition, FMD was significantly lower in fh(+) compared to fh(-) (10.7+/-9.9 vs. 13.3+/-4.6%, P <0.05). Conclusion: In FH-children, endothelial function is impaired compared to matched controls. This impairment is most pronounced in FH children with a positive family history of premature cardiovascular disease. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
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