Mathematical analysis of ECG recordings in hypothermic dogs with ventricular fibrillation identified a transient periodic component occurring 1 to 3 minutes after fibrillation onset.
Transient VF periodicity in hypothermic models may inform early waveform analysis; leaves open human defibrillation timing trials.
Mathematical analysis of periodic and semiperiodic functions by the use of special electronic computers was applied to electrocardiographic recordings of ventricular fibrillation from hypothermic dogs. Preliminary experiments revealed a definite periodic component 1 to 3 min. after onset of fibrillation which practically disappeared in 5 min.
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Angelakos et al. (1957) studied this question.
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