Systemic Endothelial Dysfunction in Adults With Cyanotic Congenital Heart Disease

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Systemic endothelial dysfunction in adults with cyanotic congenital heart disease.

BACKGROUND Secondary erythrocytosis results in increased shear stress in cyanotic congenital heart disease (CCHD), which may modify the balance between vasodilators and vasoconstrictors and affect systemic endothelial function. Because no data are available on systemic vasomotion, systemic endothelial function and nitric oxide (NO) availability were investigated in CCHD patients. METHODS AND ...

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Nitric oxide metabolism in adults with cyanotic congenital heart disease.

Endothelial-derived nitric oxide (NO) diffuses abluminally to regulate blood flow by activating soluble guanylate cyclase in medial smooth muscle. However, a significant fraction of NO diffuses luminally, where the extremely high reaction rate with red blood cell hemoglobin (Hb) effectively reduces luminal concentration to zero. The erythrocytosis of cyanotic congenital heart disease has potent...

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Myocardial perfusion reserve in adults with cyanotic congenital heart disease.

In patients with cyanotic congenital heart disease (CCHD), a right-to-left shunt results in systemic hypoxemia. Systemic hypoxemia incites a compensatory erythrocytosis, which increases whole blood viscosity. We considered that these changes might adversely influence myocardial perfusion in CCHD patients. Basal and hyperemic (intravenous dipyridamole) perfusion measurements were obtained with [...

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Risk of stroke in adults with cyanotic congenital heart disease.

BACKGROUND Adults with cyanotic congenital heart disease and elevated hematocrit levels are often phlebotomized because of an assumed risk of cerebral arterial thrombotic stroke. Whether a relation exists between hematocrit level, symptomatic erythrocytosis (hyperviscosity), and stroke remains to be established in this patient population. METHODS AND RESULTS Accordingly, 112 cyanotic patients...

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Hematologic Abnormalities in Cyanotic Congenital Heart Disease Patients

Introduction:Patients with cyanotic heart disease may have an acceptable quality of life. However, they are invariably prone to several complications. The aim of this study is search about hematologic abnormalities in cyanotic congenital heart disease patients. Materials and Methods:  In this cross sectional study every cyanotic congenital heart disease patients who was referred to the adult co...

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ژورنال

عنوان ژورنال: Circulation

سال: 2005

ISSN: 0009-7322,1524-4539

DOI: 10.1161/circulationaha.105.534073