Multifocal Pvc Ecg

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PVC 's may be unifocal from one spot on the ventricle wall or they may be multifocal from two or more different spots [foci] on the ventricle wall . Obviously, the multifocal PVC is the more dangerous condition; it indicates the general irritability of the myocardium and the possibility of even more dangerous heart arrhythmias..PVCs may be either: Unifocal Arising from a single ectopic focus; each PVC is identical. Multifocal Arising from two or more ectopic foci; multiple QRS morphologies. The origin of each PVC can be discerned from the QRS morphology: PVCs arising from the right ventricle have a left bundle branch .