Neurally Mediated Hypotension NMH
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چکیده
after prolonged periods of quiet upright posture (such as standing in a queue, standing in a shower, or even sitting for long periods), after being in a warm environment (such as in hot summer weather, a hot crowded room, a hot shower/ bath), immediately after exercise after emotionally stressful events after eating, when blood flow has shifted to the gut during the process of digestion.
منابع مشابه
Neurally Mediated Hypotension NMH
after prolonged periods of quiet upright posture (such as standing in a queue, standing in a shower, or even sitting for long periods), after being in a warm environment (such as in hot summer weather, a hot crowded room, a hot shower/ bath), immediately after exercise after emotionally stressful events after eating, when blood flow has shifted to the gut during the process of digestion.
متن کاملFludrocortisone acetate to treat neurally mediated hypotension in chronic fatigue syndrome: a randomized controlled trial.
CONTEXT Patients with chronic fatigue syndrome (CFS) are more likely than healthy persons to develop neurally mediated hypotension (NMH) in response to prolonged orthostatic stress. OBJECTIVE To examine the efficacy of fludrocortisone acetate as monotherapy for adults with both CFS and NMH. DESIGN Randomized, double-blind, placebo-controlled trial conducted between March 1996 and February 1...
متن کاملResults of isoproterenol tilt table testing in monozygotic twins discordant for chronic fatigue syndrome.
BACKGROUND The pathogenesis of chronic fatigue syndrome (CFS) is unknown. Neurally mediated hypotension (NMH) has been suggested as a common comorbid condition or a potential underlying cause. METHODS We conducted a cotwin control study of 21 monozygotic twins who were discordant for CFS. One twin met the 1994 Centers for Disease Control and Prevention criteria for CFS, and the other twin was...
متن کاملNeurally mediated syncope.
Neurally mediated syncope is a disorder of the autonomic regulation of postural tone, which results in hypotension, bradycardia, and loss of consciousness. A wide variety of stimuli can trigger this reflex, the most common stimulus being orthostatic stress. Typically, a patient with neurally mediated syncope experiences nausea, lightheadedness, a feeling of warmth, and pallor before abruptly lo...
متن کاملNeurally mediated hypotension and bradycardia: which nerves? How mediated?
The present study. In this issue of the Journal (1) investigators from the University of Minnesota report the third in a series of studies focusing on the phenomenon of “neurally mediated snycope.” In the present study, six patients (Group I) who presented with “cardiovascular collapse apparently associated with cardiac asystole” underwent head-up tilt testing before and during infusion of isop...
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