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J Thorac Cardiovasc Surg 2000;119:534-539
© 2000 Mosby, Inc.
SURGERY FOR CONGENITAL HEART DISEASE |
From the Divisions of Cardiac Surgerya and Cardiology,b Childrens Hospital and Regional Medical Center, Seattle, Wash.
Address for reprints: Brian W. Duncan, MD, Division of Cardiac Surgery, Childrens Hospital and Regional Medical Center, 4800 Sand Point Way, NE, PO Box 5371/ CM-03, Seattle, WA 98105 (E-mail: bdunca{at}chmc.org ).
Objective: Vascular endothelial growth factor and basic fibroblast growth factor are potent stimulators of angiogenesis. Children with cyanotic congenital heart disease often experience the development of widespread formation of collateral blood vessels, which may represent a form of abnormal angiogenesis. We undertook the present study to determine whether children with cyanotic congenital heart disease have elevated serum levels of vascular endothelial growth factor and basic fibroblast growth factor.
Methods: Serum was obtained from 22 children with cyanotic congenital heart disease and 19 children with acyanotic heart disease during cardiac catheterization. Samples were taken from the superior vena cava, inferior vena cava, and a systemic artery. Vascular endothelial growth factor and basic fibroblast growth factor levels were measured in the serum from each of these sites by enzymelinked immunosorbent assay.
Results: Vascular endothelial growth factor was significantly elevated in the superior vena cava (P = .04) and systemic artery (P = .02) but not in the inferior vena cava (P = .2) of children with cyanotic congenital heart disease compared to children with acyanotic heart disease. The mean vascular endothelial growth factor level, determined by averaging the means of all 3 sites, was also significantly elevated (P = .03). Basic fibroblast growth factor was only significantly elevated in the systemic artery (P = .02).
Conclusion: Children with cyanotic congenital heart disease have elevated systemic levels of vascular endothelial growth factor. These findings suggest that the widespread formation of collateral vessels in these children may be mediated by vascular endothelial growth factor.
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