Positive dromotropic effects of the vagus nerves on the canine atrioventricular node
- 1 March 1972
- journal article
- research article
- Published by Oxford University Press (OUP) in Cardiovascular Research
- Vol. 6 (2) , 155-162
- https://doi.org/10.1093/cvr/6.2.155
Abstract
After muscarinic blockade with atropine, stimulation of the cervical vagal nerves produced increases in A-V nodal conduction velocity in the paced canine heart. This positive dromotropic activity was abolished by β-adrenergic blocking agents, indicating that the changes are produced by adrenergic fibres within the cervical vagal trunk.Keywords
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