title: Cardiac arrhythmias: mechanisms and management: II. Electrocardiographic analysis of cardiac arrhythmias.
abstract: Optimal diagnosis may require continuous monitoring, intracardiac studies, or provocative electrophysiologic testing, in addition to the standard 12-lead ECG. One must keep in mind that clinical significance is largely a function of the patient's clinical condition and of the arrhythmia's site of origin. In general, supraventricular arrhythmias are less threatening than ventricular.
mesh_terms: D000293:Adolescent; D000328:Adult; D001146:Arrhythmia, Sinus / Q000175:diagnosis; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D001281:Atrial Fibrillation / Q000175:diagnosis; D001282:Atrial Flutter / Q000175:diagnosis; D001919:Bradycardia / Q000175:diagnosis; D002037:Bundle-Branch Block / Q000175:diagnosis; D005117:Cardiac Complexes, Premature / Q000175:diagnosis; D002648:Child; D004562:Electrocardiography / Q000379:methods*; D006321:Heart / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D013610:Tachycardia / Q000175:diagnosis