What does the medical abbreviation SVT mean?

The medical abbreviation SVT stands for supraventricular tachycardia, which is a medical condition characterized by a fast heart rate that originates in the upper chambers of the heart (atria). During SVT, the heart rate may rapidly increase to 100 beats per minute or higher. It can cause symptoms such as palpitations, shortness of breath, lightheadedness, chest pain, and anxiety. SVT is usually treated with medications, electrical therapy, or catheter ablation.