Catheter ablation in the heart catheterization lab

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Catheter ablation is a treatment for children with certain types of tachycardia (fast heart rate). Treatment involves destroying an abnormal circuit.

Key points

  • Catheter ablation is a treatment for children with certain types of fast heart rates. Hot or cold temperature is used to destroy abnormal electrical circuits in the heart and correct the problem.
  • There is a small risk that your child will have complications from the procedure. Your child's health-care provider will explain the risks to you before the procedure.
  • Your child will need to have a general anesthetic. Your child will be admitted to hospital the morning of the procedure. Most children go home the same day after recovering in the post-anesthetic care unit (PACU). In some cases, a child may need to stay overnight.
  • Some children may need to take acetylsalicylic acid (ASA or Aspirin) to prevent blood clots after the procedure.
Last updated: September 30th 2025