Failure of reflex venoconstriction during exercise in patients with vasovagal syncope.

@article{Thomson1996FailureOR,
  title={Failure of reflex venoconstriction during exercise in patients with vasovagal syncope.},
  author={Helen L. Thomson and John James Atherton and Frederick A. Khafagi and Michael P. Frenneaux},
  journal={Circulation},
  year={1996},
  volume={93 5},
  pages={953-9}
}
BACKGROUND In this study, we tested two hypotheses. First, we tested the hypothesis that reflex constriction of the venous capacitance beds in patients with vasovagal syncope is impaired during both subhypotensive lower-body negative pressure. Second, we proposed that splenic venoconstriction may be impaired during exercise in patients with vasovagal syncope. METHODS AND RESULTS We evaluated 25 patients with vasovagal syncope (age, 45.0 +/- 15.9 years; 12 men, 13 women) and 24 control… CONTINUE READING

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