An arrhythmia is a complication with the rhythm or rate of the heartbeat (NHLBI 2). An arrhythmia can cause the heart to beat too slowly, too fast or to beat irregularly. Arrythmias generally disturb the electric rhythm of the heart and are often called palpitations. While there are many types of arrhythmias, they are generally classified into tachycardias, bradycardias and atrial fibrillations. Bradycardia occurs when the heart beats too slowly while tarchycardia is the result of a heart beat that is too fast. An atrial fibrillation (AF) is the result of an irregular heartbeat (MCC 45).
The subject of arrhythmias is ...
