Atrial tachycardia (AT) is an abnormal heart rhythm, but unlike atrial fibrillation (AF) is more regular and organised. AT also comes from the top chambers (atria) of the heart, from either the right side, left side or both. AT is usually seen in patients that have undergone heart surgery, have congenital heart defects or have undergone previous ablation procedures.

Some people may experience symptoms such as a fast heartbeat, which may feel regular in nature but can also feel irregular. Other symptoms experienced may be similar to AF, such as breathlessness, dizziness and tiredness. 

Anticoagulant therapy

Anticoagulant medication is used to slow the blood clotting process. It is either used to prevent a clot forming in the blood or to treat clots that have already formed. 


A cardioversion is a treatment which delivers electrical energy (shock) to the heart using an external defibrillator to get the heart back into sinus rhythm.

Atrial fibrillation ablation

Catheter ablation is a keyhole technique during which a small flexible tube (or catheter) is directed to a specific area inside the heart to deliver heat energy to damage (or ablate) abno...

Pacemaker implantation

A pacemaker is used to regulate your heartbeat and can help if your heart beats too slowly.

Atrial fibrillation treatments

There are two treatment options for atrial fribrillation – rate control strategy (helping to control the rate of your atrial fibrillation) and rhythm control strategy (helping your heart ...

Arrhythmia team

The arrhythmia team includes: 

  • EP consultants
  • clinical nurse specialists
  • an arrhythmia pharmacist 
  • catheter laboratory technicians.  


Clinical nurse specialists

  • Natalie Crump 
  • Sue King
  • Sarah Plowright 
  • Alex Wise 

Arrhythmia pharmacist


Harefield Hospital
01895 828979

Royal Brompton Hospital
020 7351 8364 

Useful links

If you want to know more about arrhythmia, here are some helpful organisations and websites: