Arrhythmia

An abnormal heart rhythm such as bradycardia or tachycardia.

Symptoms:

• very fast, slow, or irregular heart beat
• fluttering in the chest
• heart skipping a beat
• occasional heavy, pounding beats
• dizziness, faintness, breathlessness

For the majority of people, these symptoms are completely harmless. But for some, arrhythmias may be a dangerous sign. Arrhythmias may require medical treatment to keep the heartbeat regular, especially in the following circumstances:

• underlying heart disease (past heart attack, high blood pressure, weakened heart muscle)
• a person experiencing fainting, near fainting, or periods of rapid heartbeat not related to exercise
• a family history of fainting, abnormal rhythms, or unexplained death under age 60

If you are concerned about an arrhythmia, consult your physician.