Sympathetic and baroreceptor reflex function in neurally mediated syncope evoked by tilt.

  title={Sympathetic and baroreceptor reflex function in neurally mediated syncope evoked by tilt.},
  author={Rogelio Mosqueda-Garcia and Raffaello Furlan and R Fernandez-Violante and Tina V Desai and Maurine Snell and Zolt{\'a}n J{\'a}rai and V Ananthram and Rose Marie Robertson and David P. Robertson},
  journal={The Journal of clinical investigation},
  volume={99 11},
The pathophysiology of neurally mediated syncope is poorly understood. It has been widely assumed that excessive sympathetic activation in a setting of left ventricular hypovolemia stimulates ventricular afferents that trigger hypotension and bradycardia. We tested this hypothesis by determining if excessive sympathetic activation precedes development of neurally mediated syncope, and if this correlates with alterations in baroreflex function. We studied the changes in intraarterial blood… CONTINUE READING
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