Table Of Contents
|WHAT IS SUPRAVENTRICULAR TACHYCARDIA|
|TYPES OF SVT|
|CAUSES OF SVT|
|SIGNS AND SYMPTOMS OF SVT|
|SEE DR. LIM|
1. What is supraventricular tachycardia (SVT)?
Supraventricular tachycardia (SVT), also known as paroxysmal supraventricular tachycardia, occurs when electrical impulses above the heart’s ventricles (supraventricular) or in the atria or Atrioventricular (AV) node, start to produce an abnormally rapid heart rate.
A normal heart beats 60 to 100 beats per minute (bpm) but when you have SVT, your heart rate may be sustained way above 100 bpm, sometimes up to 180 or 200bpm, for several minutes or hours. You may feel that you have a racing heartbeat, which can be described as palpitations.
Single lead electrocardiogram (ECG) showing rapid regular heart rates from a supraventricular tachycardia (SVT), followed abrupt termination of tachycardia followed by normal rhythm.