Baroreflex sensitivity and essential hypertension in adolescents
نویسندگان
چکیده
منابع مشابه
Baroreflex sensitivity and essential hypertension in adolescents.
It has been known for many years that baroreflex sensitivity is lowered in hypertensive patients. There are several known factors implicating this association, e.g. high blood pressure leads to remodeling of the carotid arterial wall, to its stiffness and to a diminished activation of baroreceptors; leptin released from a fatty tissue activates the sympathetic nervous system etc. On the other h...
متن کاملBaroreflex sensitivity and heredity in essential hypertension.
BACKGROUND Abnormalities in baroreflex control of heart rate may be important in the pathogenesis of essential hypertension. METHODS AND RESULTS To investigate the influence of heredity on baroreflex function, we measured baroreflex sensitivity in 40 untreated patients with essential hypertension grouped by the presence (FH+) or absence (FH-) of a family history of hypertension and in 24 norm...
متن کاملClonidine and carotid baroreflex in essential hypertension.
Clonidine is believed to reduce blood pressure by a neural action and animal experiments suggest that this consists in potentiation of baroreflexes. In 16 patients with essential hypertension we studied the effects of alterations in carotid sinus baroreceptor activity (neck chamber technique) on arterial blood pressure (catheter measurements) and heart rate, before and after intravenous adminis...
متن کاملDiastolic dysfunction and baroreflex sensitivity in hypertension.
The determinants of diastolic dysfunction in patients with systemic hypertension are not completely known. To evaluate the possible role of age, arterial blood pressure, and baroreflex heart rate response impairment in causing diastolic dysfunction, we studied 61 patients (42 male; mean+/-SD age, 43.9+/-12 years) with newly recognized and therefore previously untreated systemic hypertension. Di...
متن کاملSpontaneous baroreflex sensitivity in (pre)adolescents.
OBJECTIVE To present normal spontaneous baroreflex sensitivity (BRS) values and investigate the influence of posture, sex, age, pubertal stage, body mass index (BMI), and physical activity level on BRS in (pre)adolescents. BRS is a sensitive measure of both sympathetic and parasympathetic cardiovascular regulation that may help detect early subclinical autonomic dysfunction. DESIGN A cross-se...
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ژورنال
عنوان ژورنال: Physiological Research
سال: 2009
ISSN: 1802-9973,0862-8408
DOI: 10.33549/physiolres.931700