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Atrial Premature Complexes

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Definition: 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.      Other names Supraventricular Beats, Premature; Supraventricular Beat, Premature; Premature Supraventricular Beat; Premature Complices, Atrial; Premature Complexes, Atrial; Premature Complex, Atrial; Premature Atrial Contraction; Premature Atrial Complices; Premature Atrial Beat; Extrasystoles, Atrial; Ectopic Beats, Atrial; Ectopic Beat, Atrial; Atrial Premature Complices; Atrial Extrasystoles; Atrial Extrasystole; Atrial Ectopic Beat; Atrial Contractions, Premature; Atrial Contraction, Premature; Atrial Complices, Premature; Atrial Complex, Premature

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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