Abstract
Conclusions
The dog's ventricles did not generally survive interruption of coronary circulation during fibrillation for more than about 1 minute, in the sense that useful coordinated beats sufficient for recovery are reestablished without massage. These results caution us not to entertain too high hopes of resuscitating human hearts by the countershock method. Countershock can stop fibrillation; but complete anoxia beyond one minute generally prevents a resumption of beats sufficiently vigorous to reestablish viable blood pressures.
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