[Adrenergic vascular reactivity in elderly hypertensive patients with orthostatic disorders].
Vascular adrenergic reactivity was studied in 100 healthy persons and 222 elderly patients with stage II essential hypertension at high risk of complications. With age, the rate of orthostatic hypotension rises. This hypotension in the elderly hypertensive patients is caused by reduced adrenergic reactivity of venous microvessels.
Abramovich
S G
SG
D000320:Adrenergic Fibers; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000503:physiopathology*; D007024:Hypotension, Orthostatic / Q000209:etiology* / Q000503:physiopathology*; D008297:Male; D008833:Microcirculation; D008875:Middle Aged; D018924:Vascular Capacitance; D014699:Venules / Q000294:innervation / Q000503:physiopathology*