Atrial flutter is an abnormal cardiac rhythm characterized by rapid, regular atrial depolarizations at a characteristic rate of approximately 300 beats/min and a regular ventricular rate of about 150 beats/min in patients not taking atrioventricular (AV) nodal blockers.
Read moreWhat are the ECG characteristics of atrial fibrillation?
Findings from 12-lead electrocardiography (ECG) usually confirm the diagnosis of AF and include the following: Typically irregular ventricular rate (QRS complexes) Absence of discrete P waves, replaced by irregular, chaotic F waves. Aberrantly conducted beats after long-short R-R cycles (ie, Ashman phenomenon)
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