Dysfunctional baroreflex regulation of sympathetic nerve activity in patients with vasovagal syncope.

@article{Bchir2003DysfunctionalBR,
  title={Dysfunctional baroreflex regulation of sympathetic nerve activity in patients with vasovagal syncope.},
  author={Markus B{\'e}chir and Christian Binggeli and Roberto Corti and R{\'e}my Chenevard and Lukas E. Spieker and Frank T. Ruschitzka and Thomas Felix L{\"u}scher and Georg Noll},
  journal={Circulation},
  year={2003},
  volume={107 12},
  pages={1620-5}
}
BACKGROUND The interplay of resting muscle sympathetic nerve activity (MSA) and the baroreceptor reflex in patients with vasovagal syncope remains elusive. Hence, the aim of the present study was to investigate MSA, baroreceptor sensitivity, heart rate, and blood pressure under resting conditions and during orthostatic stress in patients with a history of vasovagal syncope. METHODS AND RESULTS MSA was measured using microneurography at rest and during lower body negative pressure (LBNP) to… CONTINUE READING

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