Arrhythmia
Arrhythmia
Arrhythmia (pronounced: /əˈrɪðmiə/), also known as cardiac dysrhythmia or irregular heartbeat, is a group of conditions in which the heartbeat is irregular, too fast, or too slow. The term is derived from the Greek words "arrhythmos" meaning without rhythm and "ia" denoting a condition.
Types of Arrhythmia
Arrhythmias are classified into two main types: ventricular arrhythmias and supraventricular arrhythmias. Ventricular arrhythmias occur in the heart's lower chambers, called the ventricles. Supraventricular arrhythmias occur in the structures above the ventricles, mainly the atria.
Causes
Arrhythmias can be caused by many factors, including heart disease, stress, smoking, heavy alcohol use, use of certain medications and drugs, and some genetic factors.
Symptoms
Symptoms of arrhythmia can include palpitations, feeling a pause between heartbeats, fatigue, dizziness, fainting, shortness of breath, and chest pain.
Diagnosis
Arrhythmias are diagnosed using a variety of tests, including electrocardiogram (ECG), Holter monitor, event monitor, stress test, and electrophysiology study (EPS).
Treatment
Treatment for arrhythmias can include lifestyle changes, medications, cardioversion, ablation, pacemaker, implantable cardioverter-defibrillator (ICD), and surgery.
See also
External links
- Medical encyclopedia article on Arrhythmia
- Wikipedia's article - Arrhythmia
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