NCIt related terms : Atrial premature complex(es); PREMATURE ATRIAL COMPLEXES; Supraventricular Extra Beat; Supraventricular Premature Beat; SVE;
NCIt 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);
Alternative definition : CDISC: 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; there may be one or more occurrences
during an electrocardiographic recording.;