We've listed the different types of arrhythmias and heart rhythm disorders below:

  • Atrial fibrillation

    Atrial fibrillation affects the upper chambers of the heart. Typically the heart beats fast in an irregular, disorganized rhythm.

  • Atrial flutter

    Atrial flutter also affects the upper chambers of the heart. The heart beats very fast in a regular rhythm.

  • Heart block

    Heart block is a disorder where the electricity does not correctly pass through the electrical pathways of the heart. This results in an irregular heart beat.

  • Long QT syndrome

    Long QT syndrome is a disorder where the heart muscle cells take extra time to recover after each heartbeat.

  • Sick sinus syndrome

    Sick sinus syndrome occurs when the normal pacemaker of the heart (the sinus node) does not work properly, resulting in irregular heartbeats.

  • Supraventricular tachycardia

    Supraventricular tachycardia describes a group of fast heart rhythms that can sometimes occur but are not due to stress or exercise.

  • Sudden cardiac arrest

    Sudden cardiac arrest is the sudden, abrupt loss of heart function in a person who may or may not have been diagnosed with heart disease. The electrical rhythm that controls the lower chambers of the heart becomes chaotic, and the heart begins to quiver instead of pumping blood.

  • Ventricular tachycardia

    Ventricular tachycardia is a rapid heart rhythm originating in the ventricles of the heart.

  • Bradychardia

    Bradychardia is a disorder where your heart beats too slowly.


Atrial Fibrillation

Atrial fibrillation is the most common type of irregular heartbeat (arrhythmia).


Heart Rhythm Society - Patient Resources

The Heart Rhythm Society is an international organization for both healthcare providers and patients. Their patient resources section provides detailed information about all types of heart rhythm disorders.