Definition: Arhythmia is a medical term for an irregular heartbeat, specifically one that is caused by an abnormal rhythm or pattern in the heart's electrical activity. The term is derived from the Greek words "arthros," meaning "heart," and "amnia," which means "no rhythm." It can occur due to various conditions, including arrhythmias of different types (e.g., ventricular ectopic beats), as well as conditions that result in irregular heartbeats.
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