An arrhythmia refers to any abnormality in the rhythm or rate of the heartbeat. Normally, the heart beats in a steady, rhythmic pattern, which is crucial for pumping blood efficiently throughout the body. Sometimes this rhythm becomes irregular, either beating too fast (tachycardia), too slow (bradycardia), or erratically.
If you notice an irregular heartbeat, you should make an appointment with your primary care provider. They will evaluate your condition and, if necessary, refer you to an electrophysiologist. If you experience shortness of breath, lightheadedness or passing out related to an irregular heartbeat, you should seek immediate care at the nearest emergency room or call 911.
Electrophysiologists specialize in diagnosing and treating cardiac arrhythmias.
- Palpitations: fast or irregular heartbeat
- Bradycardia: slower than normal heart rate
- Ventricular tachycardia: fast heartbeat starting in the two lower chambers (ventricles)
- Atrial flutter: fast heartbeat starting in the two upper chambers (atria)
- Atrial fibrillation (AFib): faster and more irregular version of atrial flutter