The common types of heart rhythm disturbances are:

Atrial Flutter

This rhythm is closely related to atrial fibrillation and can carry the same increase in stroke risk. However, in contrast to the chaotic activity in AF, flutter is caused by a single short circuit usually in the top right chamber of the heart.
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Ventricular Tachycardia

VT is a rhythm disturbance that originates from the lower chambers of the heart (the ventricles). This rhythm disturbance is usually caused by some underlying heart disease such as previous heart attacks, heart failure or inherited heart conditions.
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