Article: article from journal or magazin.
Progressive withdrawal of muscle nerve sympathetic activity preceding vaso-vagal syncope during lower-body negative pressure.
We report the observation of a vaso-vagal syncope (VVS) occurring during lower body negative pressure in a young male volunteer. Recording of the peripheral blood flow, blood pressure and muscular sympathetic nerve activity revealed first a progressive withdrawal of muscle nerve sympathetic activity with redistribution of blood flow before the onset of the VVS.
Adult, Blood Pressure/physiology, Electrocardiography, Heart Rate/physiology, Humans, Laser-Doppler Flowmetry, Lower Body Negative Pressure, Male, Muscles/innervation, Plethysmography, Regional Blood Flow/physiology, Signal Processing, Computer-Assisted, Sympathetic Nervous System/physiopathology, Syncope/physiopathology, Vagus Nerve/physiopathology
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