منابع مشابه
The sympathetic system and hypertension.
Measurement of regional sympathetic activity in lean essential hypertension patients using electrophysiologic (sympathetic nerve recording) and neurochemical (measurement of norepinephrine spillover) techniques demonstrates activation of sympathetic outflow to the heart, kidneys, and skeletal muscle vasculature in younger (< 45 years) patients. The increase in sympathetic activity is a mechanis...
متن کاملInfluence of the Sympathetic System
When ventricular pacemakers are electrically stimulated at a fast rate, the cessation of the drive is followed by a temporary suppression of automaticity ("overdrive suppression"). The role of the sympathetic system in the regulation of this overdrive suppression was studied and the following results obtained: 1) Hypotension induced during overdrive by amyl nitrite inhalation caused a shortenin...
متن کاملThe sympathetic nervous system and heart failure.
Heart failure (HF) is a syndrome characterized by upregulation of the sympathetic nervous system and abnormal responsiveness of the parasympathetic nervous system. Studies in the 1980s and 1990s demonstrated that inhibition of the renin-angiotensin-aldosterone system with angiotensin-converting enzyme inhibitors improved symptoms and mortality in HF resulting from systolic dysfunction, thus pro...
متن کامل[The renin-angiotensin system and the sympathetic nervous system].
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متن کاملHypertension and the sympathetic nervous system.
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ژورنال
عنوان ژورنال: American Journal of Hypertension
سال: 2000
ISSN: 0895-7061
DOI: 10.1016/s0895-7061(00)00225-9