See Also: arrhythmia(encyclopedia)
Arrhythmia(health)
arrhythmia(medicine)
arrhythmia(dictionary)
Sinus arrhythmia(medicine)
supraventricular arrhythmia(medicine)
juvenile arrhythmia(medicine)
arrhythmia, sinus(medicine)
perpetual arrhythmia(medicine)
cardiac arrhythmia(medicine)

Arrhythmia (health)


An abnormal heart rhythm, or heartbeat. The rhythm can be too fast, too slow, or irregular (beating at an off-beat rhythm). Some arrhythmias aren't a problem, but more serious arrhythmias can mean the heart is working less effectively, and may cause symptoms of palpitations, weakness, dizziness, chest pain, and shortness of breath.