Monday, 14 November 2016

Multifocal PVCs

Multifocal PVCs all look different from each other on the same ECG. They occur at different intervals, at various times in the QRS cycle, with different coupling intervals. Multiformed PVCs usually have the same coupling intervals (because they originate in the same ectopic site but their conduction through the ventricles differ. Multiformed PVCs are common in digitalis intoxication.