Psychologic Stress and Threshold for Repetitive Ventricular Response

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Science  23 Nov 1973:
Vol. 182, Issue 4114, pp. 834-836
DOI: 10.1126/science.182.4114.834


A psychologically stressful environment reduced the threshold of the dog's ventricle for repetitive response. Elicitation of such a response indicates the presence of electrical instability and a predisposition to ventricular fibrillation, the mechanism of sudden death.