title: Interpreting an ECG. Atrial premature complex.
abstract: When APCs are symptomatic or are a potential trigger for supraventricular tachycardia or atrial fibrillation, suppressive therapy with beta-blocking drugs or type I antiarrhythmic agents is indicated. If APCs are infrequent and produce no symptoms, attention to possible provocative factors--excess tobacco or caffeine, or drugs (eg, sympathomimetic amines, monoamine oxidase inhibitors, tricyclic antidepressants)--is all that is required.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D000367:Age Factors; D000368:Aged; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000628:therapy; D001281:Atrial Fibrillation / Q000175:diagnosis; D005117:Cardiac Complexes, Premature / Q000175:diagnosis / Q000628:therapy; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006325:Heart Atria; D006801:Humans; D013610:Tachycardia / Q000175:diagnosis / Q000628:therapy
chemical_list: D000319:Adrenergic beta-Antagonists; D000889:Anti-Arrhythmia Agents