Effect of 60-minute head-down tilt on arterial baroreflex function in anesthetized dogs

Michael L. Smith, William G. Squires, Tedd A. Brandon, Peter B. Raven, Sarah A. Nunneley

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Arterial baroreflex control of heart rate was assessed in 6 anesthetized dogs with a bolus infusion of phenylephrine before and during cardiopulmonary receptor stimulation by 6° head-down tilt (HDT) for 60 min. No difference in arterial baroreflex function was observed between the control and HDT conditions. It appears that the attenuation of baroreflex function that occurs during acute stimulation of cardiopulmonary baroreceptors disappears when cardiopulmonary baroreceptors reset after prolonged stimulation.

Original languageEnglish
Pages (from-to)87-90
Number of pages4
JournalJournal of the Autonomic Nervous System
Volume20
Issue number1
DOIs
StatePublished - Jul 1987

Keywords

  • Arterial baroreceptor
  • Blood pressure
  • Cardiopulmonary baroreceptor
  • Dog
  • Phenylephrine
  • Resetting

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