Atrial Premature Complex by ECG Finding

**Semantic type:** Finding

**Definition:** An electrocardiographic finding of an ectopic impulse originating in the atria and not specifically in the sinus node. The P wave morphology of these complexes is often different from a sinus P wave and the RR intervals preceding these complexes is also shorter than those of the regular beats. (CDISC)

**Synonyms:** - APC - APC - Atrial Premature Complex - Atrial Premature Complex by EKG Finding - Atrial premature complex(es) - PAC - PAC - PREMATURE ATRIAL COMPLEXES - Premature Atrial Complex - Premature atrial complex - Premature atrial complexes - SVE - Supraventricular Extra Beat - Supraventricular Premature Beat