Abstract
Summary
Auricular fibrillation caused by electrical stimulation of the auricles or by the application of acetyl choline to the area of the sinus node is not stopped by cooling the area of stimulation or cooling of the site of application of the drug. In 24 of 27 experiments, however, the simultaneous cooling of sinus and A-V nodes terminated the auricular fibrillation. Interruption of the cooling caused the auricular fibrillation to recur.
The experiments are evidence which tends to support the theory that in some forms of auricular fibrillation more than one center of rapid stimulus formation is active. They speak against the presence of a circus movement.
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