منابع مشابه
Brachial vascular reactivity in blacks.
Endothelial function was studied ultrasonographically in a healthy subset of African Americans (blacks) because they have an increased risk of hypertension and vascular disease. Twenty-four healthy black and 28 well-matched white subjects were investigated. Ischemia was induced by inflating a cuff over the forearm to 40 mm Hg higher than systolic pressure for 5 minutes. Brachial artery diameter...
متن کاملIncreased vascular adrenergic vasoconstriction and decreased vasodilation in blacks. Additive mechanisms leading to enhanced vascular reactivity.
Blood pressure reactivity is enhanced in young black subjects through mechanisms that are poorly understood. We compared alpha-adrenergic-mediated vasoconstrictor and ss-adrenergic vasodilator sensitivity and their relation to sympathetic activity in blacks and whites. Ten healthy black (age, 29.9+/-2.4 years) and 10 white (age, 28.3+/-1.9 years) men were studied. Forearm blood flow was measure...
متن کاملVascular reactivity in hypertension.
IN ESTABLISHED human hypertension, there has never been any real doubt that the baroreceptor mechanisms remain active, hut regulate the arterial pressure to a new high level. The upward setting of these baroreeeptors occurs not only in essential hypertension but also in hypertension secondary to renal disease of various sorts. There is also evidence from the effects of ganglion blocking drugs t...
متن کاملBrachial artery reactivity and vascular reactive hyperemia for preoperative anaesthesia risk assessment – an observational study
BACKGROUND Non-invasive measures of vascular reactivity have emerged to refine cardiovascular risk. However, limited data exists investigating vascular reactivity as a preoperative diagnostic tool for anesthesiologists. In this study, we compare the utility of two non-invasive techniques, Brachial Artery Reactivity Testing (BART) and Digital Thermal Monitoring (DTM), as surrogates for measuring...
متن کاملVascular reactivity in diabetes mellitus.
A patient with type 2 diabetes carries a cardiovascular risk similar to that of a non-diabetic with a prior history of myocardial infarction. Endothelial dysfunction, an early event in the pathogenesis of atherosclerosis is present in diabetes mellitus in the absence of clinical cardiovascular disease. The assessment of the endothelium dependent vasodilatory effect in response to various stimul...
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ژورنال
عنوان ژورنال: Hypertension
سال: 2000
ISSN: 0194-911X,1524-4563
DOI: 10.1161/01.hyp.36.5.866