Multifocal atrial arrhythmia is an uncommon type of tachycardia that usually develops in people with certain illnesses. Those with the condition have a heart rate of over 100 beats per minute.

Narrow QRS complexes occur regularly. This tracing suggests either atrial flutter or ventricular tachycardia. It is not atrial flutter, however. If it were, the QRS complexes occurring regularly would ...

Medically reviewed by Angela Ryan Lee, MD It's essential to seek emergency care if a rapid heartbeat is paired with confusion ...

Please provide your email address to receive an email when new articles are posted on . Researchers observed an increase in heart rate and atrial tachycardias as alcohol consumption increased in young ...