Supraventricular tachycardia (SVT)Overview


Supraventricular tachycardia is a condition where your heart suddenly beats much faster than normal.


Supraventricular tachycardia is caused by a problem with the electrical system that controls your heartbeat.


The main symptom of supraventricular tachycardia is your heart suddenly beating faster than usual for a few minutes or sometimes several hours.


Things like avoiding caffeine and alcohol can help with supraventricular tachycardia. Medicines or a heart procedure may be needed if it's severe.

Page last reviewed: 11/04/2018
Next review due: 11/04/2021