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May 1, 1976Circulation ResearchOpen Access

Depression of atrioventricular sensitivity in the dog by successive brief bursts of vagal stimulation.

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Why the study?

Does successive vagal stimulation alter atrioventricular conduction time in dogs?

Population

Dogs (preclinical model)

Comparison

Successive single vagal stimulations separated… vs First vagal stimulation vs. second vagal…

Design

Preclinical

Authors

MPMartin PjBAE Systems (United Kingdom)

Discussion

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Implication

Indicates vagal desensitization of canine AV conduction; leaves open any human relevance or therapeutic implications.

Structured PICO

Does successive vagal stimulation alter atrioventricular conduction time in dogs?

P
Population
Dogs (preclinical model)
I
Intervention
Successive single vagal stimulations separated by 2-60 seconds
C
Comparator
First vagal stimulation vs. second vagal stimulation
O
Outcome
Peak change in atrioventricular conduction time (deltaAV)surrogate

Successive vagal stimulations in dogs result in a time- and amplitude-dependent depression of atrioventricular sensitivity, likely due to changes in receptor responsiveness or acetylcholine inactivation.

Cite This Study

Martin Pj (1976) studied this question.

synapsesocial.com/papers/6a87f96cb0d802598bf4c8f8https://doi.org/10.1161/01.res.38.5.448
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Additive effects of acetylcholine released by vagal nerve stimulation on atrial rate1975 · 23 citations
  2. 2Hyperpolarization of the Quiescent Heart and Inhibition of the Heart Beat by Vagal Impulses1968 · 9 citations
  3. 3A New General Concept of the Neurohumoral Functions of Acetylcholine and Acetylcholinesterase1962 · 260 citations
  4. 4HIGH AFFINITY TRANSPORT OF CHOLINE INTO SYNAPTOSOMES OF RAT BRAIN11973 · 587 citations