Vasovagal syncope with bradycardia during lower body negative pressure in a heart transplant recipient

Cristina Giannattasio, Guido Grassi, Giuseppe Mancia

Research output: Contribution to journalArticle

Abstract

Vasovagal syncope has been ascribed to the vagal excitation and the sympathetic inhibition induced reflexly by mechanical stimulation of receptors in the ventricles. In this case report we describe a vasovagal syncope with bradycardia triggered by a reduction in venous return obtained via mild lower body negative pressure, in a patient with cardiac denervation due to heart transplantation. This suggests that the mechanisms involved in this phenomenon may not exclusively depend on a reflex originating from ventricular receptors. It also suggests that non-neural factors may be involved in the genesis of the bradycardia.

Original languageEnglish
Pages (from-to)309-311
Number of pages3
JournalBlood Pressure
Volume2
Issue number4
DOIs
Publication statusPublished - 1993

Keywords

  • Heart transplantation
  • Sympathetic nervous system
  • Vagal tone
  • Vasovagal syncope
  • Ventricular receptors

ASJC Scopus subject areas

  • Internal Medicine
  • Cardiology and Cardiovascular Medicine

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