Other types of rhythm problems can have similar effects. Problems may occur when the heart beats too fast, too slow, or with an irregular rhythm. But whether the heart is beating too fast, too slow, or too irregularly, the effects are often the same as one or more of those described above. Some additional examples of rhythm problems include:
- Atrial fibrillation -- occurs when the atria beat irregularly and too fast
- Ventricular fibrillation -- occurs when the ventricles beat irregularly and too fast
- Bradycardia -- occurs when the heart beats too slow
- Tachycardia -- occurs when the heart beats too fast
- Heart block -- occurs when the electrical signal is delayed or blocked after leaving the sinoatrial (SA) node. There are several types of heart blocks, and each one has a distinctive electrocardiogram (ECG) tracing.