The electrocardiographic lead system consisted ... the seventh postsurgical day). Ventricular fibrillation precipitated death in the remaining 5 patients (12.5 per cent of the total group or ...

One can either use calculated sums of the amplitudes of QRS complexes of all 12 leads, or the 6 limb leads, or only leads I and II. As noted above, the precordial leads are unreliable ...

Longstanding persistent AF lasts for more than 12 months ... This paradoxical increase in ventricular heart rates may lead to ventricular fibrillation (ventricular rates of 400 to 600 bpm ...

Cardiac arrest and death can occur from ventricular fibrillation ... This is depicted below, followed by full 12-lead ECG examples of digoxin toxicity, atrial tachycardia with 2:1 block and ...