PMC4020898_01
Electrocardiogram at the time of transfer to the hospital. There was pulseless electrical activity.
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An electrocardiogram (ECG) monitor indicated that his heart rate was 30 bpm (pulseless electrical activity) (Figure 1).
An electrocardiogram registered by the automated external defibrillator. Pulseless electrical activity turned into ventricular fibrillation.
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Because of pulseless electrical activity, cardiac arrest was diagnosed using an ECG, and administration of medication (epinephrine and atropine) led to ventricular fibrillation (Figures 2 and 3).
An electrocardiogram after administration of medication. Ventricular fibrillation was observed.
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Because of pulseless electrical activity, cardiac arrest was diagnosed using an ECG, and administration of medication (epinephrine and atropine) led to ventricular fibrillation (Figures 2 and 3).
Twelve-lead resting electrocardiogram after defibrillation. Heart rate was 140 bpm with sinus tachycardia, and the QT interval was 415 milliseconds. There were no significant changes in the ST-T interval.. Abbreviations: aVR, augmented vector right; aVL, augmented vector left; aVF, augmented vector foot.
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After the sinus rhythm improved, an ECG revealed no significant changes in ST-T or QT interval prolongation (Figure 4).