Fig. 1From: Outcome assessment for out-of-hospital cardiac arrest patients in Singapore and Japan with initial shockable rhythmStudy flowchart. OHCA, out-of-hospital cardiac arrest, VF, ventricular fibrillation, VT, ventricular tachycardia, ROSC, return of spontaneous circulation. The patients with initial shockable rhythm in the SG-PAROS database are divided by the cardiac rhythm at emergency department arrival: those with ROSC, those with persistently shockable rhythm, and those with nonshockable rhythm although they initially had a shockable rhythmBack to article page