Ventricular arrhythmia
Ventricular Arrhythmia
Ventricular arrhythmia (pronounced ven-TRIK-yoo-lur uh-RITH-mee-uh) is a term for any rhythm disorder originating in the lower chambers of the heart, known as the ventricles.
Etymology
The term "ventricular" is derived from the Latin word "ventriculus", which means "little belly". It refers to the ventricles of the heart, which pump blood out of the heart. "Arrhythmia" is derived from the Greek words "a-", meaning "not", and "rhythmos", meaning "rhythm". Thus, "arrhythmia" refers to a lack of rhythm or regularity.
Definition
Ventricular arrhythmia is a condition characterized by abnormal electrical signals in the ventricles, leading to irregular heart rhythms. This can cause the heart to pump less effectively, potentially leading to a variety of symptoms and complications.
Types
There are several types of ventricular arrhythmias, including:
- Ventricular Tachycardia (VT): A rapid heart rate originating in the ventricles.
- Ventricular Fibrillation (VF): A chaotic, irregular heart rhythm originating in the ventricles.
- Premature Ventricular Contractions (PVCs): Extra, abnormal heartbeats originating in the ventricles.
Symptoms
Symptoms of ventricular arrhythmia can vary widely, from none at all to severe. They may include palpitations, dizziness, fainting, shortness of breath, or chest pain.
Causes
Ventricular arrhythmias can be caused by a variety of factors, including heart disease, heart attack, high blood pressure, electrolyte imbalance, and the use of certain medications.
Treatment
Treatment for ventricular arrhythmia can include medication, cardioversion, catheter ablation, or the implantation of a cardiac defibrillator or pacemaker.
See Also
External links
- Medical encyclopedia article on Ventricular arrhythmia
- Wikipedia's article - Ventricular arrhythmia
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