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Supraventricular tachycardia (SVT)

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

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.

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

Read more on the NHS website.

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

Symptoms of supraventricular tachycardia (SVT)

Having SVT means your heart suddenly beats faster.

This:

You may get no other symptoms, but sometimes people also:

Read more on the NHS website.

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

Self-care

If your episodes of SVT only last a few minutes and do not bother you, you may not need treatment.

You can make changes to your lifestyle to reduce your chances of having episodes, such as:

  • cutting down on the amount of caffeine or alcohol you drink
  • stopping or cutting back on smoking
  • making sure you get enough rest

Your doctor may also be able to recommend some simple techniques to help stop episodes when they happen.

Medical treatments

SVT is rarely life threatening. But you may need treatment in hospital if you keep having long episodes.

This may include:

  • medicines to control the episodes of SVT – given as tablets or through a vein
  • cardioversion – a small electric shock to the heart to help it get back to a normal rhythm
  • catheter ablation – a treatment where thin tubes are placed through a vein or artery into your heart to correct the problem with the electrical system; this permanently cures the problem in most patients

Read more on the NHS website.

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

Read more on the NHS website.