premature electrocardiography complex

Introduction

Premature complexes are the most most form of arrhythmia, most frequently arising within the ventricles. They arise less frequently from the atria & the AV node.

More general terms

• cardiac arrhythmia

More specific terms

• competitive atrioventricular (AV) dissociation
• premature atrial complex (PAC, atrial premature contraction, APC)
• premature atrioventricular junctional complex (JPC)
• premature ventricular complex (PVC) or depolarization (PVD), extrasystole