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Pediatr Cardiol. 2005 Jul-Aug;26(4):385-90.

Endothelial function evaluated by flow-mediated dilatation in pediatric vascular disease.

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Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110, Shimokato, 409-3898, Tamaho, Japan.


The endothelial function of children with and without vascular disease, consisting of 41 controls, 24 with Kawasaki disease (KD), and 46 with diabetes mellitus (DM), was examined. Age at examination ranged from 3 to 23 years (mean, 12.0 +/- 4.7). The flow-mediated dilatation (FMD) and intima-media complex in the common carotid artery were measured. In controls age at examination was not associated with FMD or intima-media complex. FMD significantly decreased in children with KD and DM compared with the control group (control vs KD or DM: 11.7 +/- 14.7 vs 3.0 +/- 11.0 or 6.4 +/- 8.5%, respectively; p < 0.05). However, there was no significant difference for intima-media complex among the groups. Furthermore, FMD in KD patients with coronary arterial aneurysm was lower than that in KD patients without aneurysm (-0.5 +/- 9.2 vs 8.3 +/- 9.1%, p < 0.05). In DM patients, FMD in the high HbA1c group (HbA1c = 7%) was lower than that in the normal HbA1c group (HbA1c < 7%) (4.8 +/- 8.1 vs 11.4 +/- 7.8%, p < 0.05). In conclusion, FMD detected endothelial impairment in children with KD or type 1 DM regardless of overt vascular complications, and FMD impairment occurs prior to intima-media complex thickening. By measuring both FMD and intima-media complex, useful information for predicting vascular complications may be obtained.

[Indexed for MEDLINE]

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