SVT, or supraventricular tachycardia, is a type of abnormal heart rhythm in which the heart rate is abnormally fast. It is characterized by a rapid heart rate that originates in the upper chambers of the heart. It is a common type of abnormal heart rhythm and can occur in both adults and children.
Types of SVT
There are several types of SVT, including atrial fibrillation (AF), atrial flutter, and paroxysmal supraventricular tachycardia (PSVT).
Atrial fibrillation (AF) is the most common type of SVT. It is characterized by an irregular and rapid heartbeat due to disorganized electrical signals in the upper chambers of the heart.
Atrial flutter is a type of SVT in which the heart rate is abnormally fast but regular. It is caused by a rapid electrical circuit in the atria and can be dangerous if left untreated.
Paroxysmal supraventricular tachycardia (PSVT) is a type of SVT characterized by a rapid heart rate that starts and stops suddenly. It is caused by a short circuit in the electrical system of the heart.
Diagnosis of SVT
SVT is usually diagnosed with an electrocardiogram (ECG). An ECG is a test that records the electrical activity of the heart. It can help diagnose and monitor the heart's rhythm. Other tests, such as a chest X-ray or echocardiogram, may also be used to diagnose SVT.
Treatment of SVT
Treatment for SVT depends on the type and severity of the arrhythmia. In some cases, no treatment is needed and the arrhythmia may go away on its own. In other cases, medications, such as beta blockers and calcium channel blockers, may be used to slow the heart rate. In some cases, electrical cardioversion or catheter ablation may be necessary.