Postexercise syncope: Evidence for increased activity of the sympathetic nervous system

M. Arad, A. Solomon, A. Roth, J. Atsmon, B. Rabinowitz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

This report describes an association of postexertional syncope with increased levels of circulating catecholamines. A 36-year old male who experienced postexercise bradycardia and asystole had higher basal plasma norepinephrine (120 versus 68 ± 6 pg/ml) and epinephrine (18 versus less than 10 pg/ml) but a similar vagal tone (vagal tone index of 5.44 versus 5.81 ± 1.00 U) when compared with 6 closely matched subjects who underwent an uneventful stress test.

Original languageEnglish
Pages (from-to)121-123
Number of pages3
JournalCardiology
Volume83
Issue number1-2
DOIs
StatePublished - 1993
Externally publishedYes

Keywords

  • Beta-blockers
  • Epinephrine
  • Plasma norepinephrine
  • Postexercise syncope

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