The Association of Extreme Tachycardia and Sustained Return of Spontaneous Circulation after Nontraumatic Out-of-Hospital Cardiac Arrest

<div><i>N</i>-terminal pro-brain-type natriuretic peptide concentration. Bradycardia, heart rate (HR) &lt; 60 beats/min; normal, 60 ≤ HR ≤ 100 beats/min; tachycardia, 100 &lt; HR &lt; 150 beats/min; extreme tachycardia, HR ≥ 150 beats/min.</div>

Emergency Medicine International

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Figure 3

Figure 3: The Association of Extreme Tachycardia and Sustained Return of Spontaneous Circulation after Nontraumatic Out-of-Hospital Cardiac Arrest 