Tachycardia refers to a heart rate that is faster than normal, usually over 100 beats per minute.

Bradycardia is a condition where the heart rate is abnormally slow, usually below 60 beats per minute.

Arrhythmia is a general term for any abnormality in the heart's rhythm or rate.

Supraventricular Tachycardia (SVT) is a type of arrhythmia where the heart rate increases rapidly, often causing a fluttering sensation in the chest.

Atrial Fibrillation (AFib) is the most common type of arrhythmia, causing irregular and often rapid heartbeats.

Heart Block is a condition where the electrical signals between the heart's chambers are blocked or delayed, leading to a slow or irregular heart rate.

Ventricular Fibrillation (VFib) is a serious arrhythmia where the heart's ventricles contract rapidly and irregularly, often leading to cardiac arrest.

Syncope, also known as fainting, is a temporary loss of consciousness caused by a brief interruption of blood flow to the brain, often associated with arrhythmias.

Cardioversion is a medical procedure that uses electrical pulses to restore a normal heart rhythm in patients with arrhythmias.

A pacemaker is a small, battery-powered device implanted in the chest to regulate the heart rate and rhythm in patients with arrhythmias.

Long QT Syndrome is an arrhythmia characterized by a prolonged QT interval on an electrocardiogram, increasing the risk of sudden cardiac death.

Wolff-Parkinson-White Syndrome is a condition where an extra electrical pathway exists between the atria and ventricles, causing rapid heartbeats.

Sick Sinus Syndrome is an arrhythmia characterized by a sudden drop in heart rate, often causing dizziness or fainting.

Postural Orthostatic Tachycardia Syndrome (POTS) is a condition where the heart rate increases upon standing up, causing dizziness or lightheadedness.

Sinus Tachycardia is a rapid, regular heart rate, often caused by excessive caffeine or alcohol consumption.