Your health care provider may advise an EP study for the following reasons :

  • To evaluate symptoms such as dizziness, fainting, weakness, palpitation or others to check if they might be caused by heart rhythm problem.
  • If you have an abnormal heart rhythm (arrhythmia).
  • If you are undergoing catheter ablation.
  • If you have a risk of sudden cardiac death.
  • To check how well medicines given to treat a heart rhythm problem are working. 
  • If you are undergoing heart surgery.