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SVT Symptoms and Causes:

SVT stands for Supraventricular Tachycardia. It is a type of abnormal heart rhythm that originates in the atria, the upper chambers of the heart. Symptoms of SVT can include a rapid and irregular heartbeat, chest pain or discomfort, shortness of breath, lightheadedness or dizziness, and fainting. Some people with SVT may not experience any symptoms at all. If you suspect you have SVT, it is important to see a doctor for proper diagnosis and treatment.

There are several possible causes of Supraventricular Tachycardia (SVT), including:

1. Reentrant tachycardia: This occurs when electrical signals in the heart travel in a circular loop, causing the heart to beat rapidly.

2. Atrial fibrillation: This is a type of SVT that occurs when the atria contract rapidly and irregularly.

3. Atrial flutter: This is another type of SVT that occurs when the atria contract rapidly but in a regular pattern.

4. Wolff-Parkinson-White syndrome (WPW): This is a congenital condition in which an extra electrical pathway in the heart can cause rapid heartbeats.

5. Certain medications: Some medications, including some used to treat high blood pressure, asthma and heart conditions, can cause SVT as a side effect.

6. Hyperthyroidism: Overactive thyroid gland can causes SVT.

7. Structural Heart disease: certain heart disease such as rheumatic heart disease, hypertension, valvular disease can cause SVT.

It is important to note that in some cases, the cause of SVT may be unknown. A proper evaluation by a healthcare professional is important to determine the cause and appropriate treatment.