SVT, or supraventricular tachycardia, is a type of atrial tachycardia. Atrial tachycardia is a type of rapid heartbeat that originates in the atria, the upper chambers of the heart. SVT is the most common type of atrial tachycardia, and it is typically caused by an electrical short circuit in the heart's electrical system.
Symptoms of SVT include palpitations, chest pain, lightheadedness, and shortness of breath. The condition is usually harmless and can often be treated with medications or lifestyle changes. If these treatments do not work, ablation or catheterization may be recommended.
Causes of SVT
SVT is caused by an abnormality in the electrical conduction system of the heart. This can be due to an extra electrical pathway in the heart, or a malfunction in the pathway that normally carries the electrical signals.
In some cases, the cause of SVT is not known. However, certain medical conditions or medications can increase the risk of developing SVT, including high blood pressure, heart disease, diabetes, and smoking. Certain medications, such as some antidepressants, anti-arrhythmic drugs, and stimulants, can also increase the risk of developing SVT.
Treatment of SVT
The treatment of SVT depends on the underlying cause and the severity of the condition. In some cases, lifestyle changes such as avoiding caffeine and alcohol, and managing stress, can help reduce the risk of developing SVT.
If lifestyle changes are not effective, medications can be used to slow down the heart rate and reduce the symptoms of SVT. In some cases, ablation or catheterization may be recommended to treat the condition. Ablation is a procedure that uses heat or radiofrequency energy to destroy the abnormal electrical pathways in the heart. Catheterization is a procedure that involves inserting a thin tube into the heart to identify and treat abnormal pathways.
In some cases, surgery may be recommended to treat the underlying cause of SVT. For example, if there is an extra electrical pathway, it can be surgically removed or blocked.
Overall, SVT is a type of atrial tachycardia that is usually caused by an abnormality in the heart's electrical system. Treatment depends on the underlying cause and severity of the condition, but lifestyle changes and medications can often help manage the symptoms. In some cases, ablation or catheterization may be recommended, and in rare cases, surgery may be necessary.