- Fast heartbeat (tachycardia)
- Atrial fibrillation (A-fib). Chaotic heart signaling causes a rapid, uncoordinated heart rate. …
- Atrial flutter. Atrial flutter is similar to A-fib , but heartbeats are more organized. …
- Supraventricular tachycardia. …
- Ventricular fibrillation. …
- Ventricular tachycardia.
