The most common symptom: a quivering or fluttering heartbeat
Read moreWhat is the hallmark characteristic of atrial flutter?
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.9 Mar 2021
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