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  • Title: [Controlled sinus arrhythmia during burst stimulation of the vagus nerve].
    Author: Sheikh-Zade IuR, Pokrovskiĭ MV.
    Journal: Biull Eksp Biol Med; 1985 Apr; 99(4):393-4. PubMed ID: 3986360.
    Abstract:
    In experiments on anesthesized cats and rats the desynchronization of the heart rate and burst stimulation of the vagus brought about severe sinus arrhythmia. Analysis of the functional dependence between the P--S interval (atrial wave of the ECG--moment of vagus stimulation) and the P--P interval showed periodical alterations in pacemaker sensitivity to the effect of the vagus during each cardiac cycle. It is supposed that natural vagus arrhythmia is the result of discoordination between heart automacy and efferent vagus bursts of central origin.
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