The PVC conducts back to the atrium though the slow AV nodal pathway and then results in conduction back down the AV node to create the narrow-complex "echo beat". The P wave preceding the echo ...

Ventricular bigeminy occurs when every other beat is a PVC. No treatment is necessary for PVCs. If symptomatic, beta-blockers or antiarrhythmic drugs can be effective. Rarely, ablation of PVCs is ...