vagal bradycardia

va·gal bra·dy·car·di·a

any excessive cardiac slowing due to stimulation of the vagus nerves.
References in periodicals archive ?
Basic research showed that NPY could antagonize vagal bradycardia by stimulating presynaptic Y2 receptors on cardiac vagal nerve terminals and inhibit the release of the neurotransmitter acetylcholine.
Vagal bradycardia produced by microinjections of morphine-like drugs into the nucleus ambiguus in anaesthetized dogs.