Why the study?
Does arterial pressure change affect SA rate and AV conduction via the vagal efferent limb of baroreceptor reflexes in anesthetized dogs?
Population
10 anesthetized (alpha-chloralose) dogs
Comparison
Arterial pressure stimulus with efferent… vs Different conditions
Design
Preclinical
Authors
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Supports coordinated vagal SA-AV node regulation in dogs; leaves open translation to human baroreflex physiology.
Does arterial pressure change affect SA rate and AV conduction via the vagal efferent limb of baroreceptor reflexes in anesthetized dogs?
The study demonstrates that vagal regulation of SA rate and AV conduction are finely matched to preserve 1:1 AV conduction during arterial pressure changes.
O’Toole et al. (1984) studied this question.
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