what triggers svt episodes
Supraventricular tachycardia (SVT) is defined as an abnormally rapid heart rhythm having an electropathologic substrate emerging above the bundle of His (atrioventricular bundle), thus causing the heart to escalate to rates higher than 100 beats per minute. 1-4 Most types of SVT are triggered by a reentry mechanism that may be induced by premature atrial or ventricular ectopic beats and are classified according to the location of the reentry circuit. 1-5 The accelerated heart rate can be ...