A type of cardiac arrhythmia with premature atrial contractions or beats caused by signals originating from ectopic atrial sites. The ectopic signals may or may not conduct to the HEART VENTRICLES. Atrial premature complexes are characterized by premature P waves on ECG which are different in configuration from the P waves generated by the normal pacemaker complex in the SINOATRIAL NODE.
Also Known As:
Premature Atrial Contraction; Atrial Premature Complex; Premature Atrial Complex; Atrial Beat, Premature; Atrial Beats, Premature; Atrial Complex, Premature; Atrial Complices, Premature; Atrial Contraction, Premature; Atrial Contractions, Premature; Atrial Ectopic Beat; Atrial Extrasystole; Atrial Extrasystoles; Atrial Premature Complices; Ectopic Beat, Atrial; Ectopic Beats, Atrial; Extrasystoles, Atrial; Premature Atrial Beat; Premature Atrial Complices; Premature Complex, Atrial; Premature Complexes, Atrial; Premature Complices, Atrial; Premature Supraventricular Beat; Supraventricular Beat, Premature; Supraventricular Beats, Premature; Atrial Ectopic Beats; Extrasystole, Atrial; Premature Atrial Beats; Premature Atrial Contractions; Premature Supraventricular Beats