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Pediatric Cardiac Arrhythmia Ablation

Catheter ablation is the curative treatment for symptomatic supraventricular tachycardia and accessory pathways in children, with success rates above 95%.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Çocuk Sağlığı ve Hastalıkları department. Book Appointment →

What is Pediatric Cardiac Arrhythmia Ablation?

Pediatric arrhythmia ablation is the curative treatment for symptomatic supraventricular tachycardia (SVT), atrial flutter, accessory pathways (WPW), focal atrial tachycardia, ventricular tachycardia. Recommended in children >5 years; considered in younger children if life-threatening arrhythmia.

Indications: drug-resistant or drug-intolerant SVT, WPW with sudden death risk (short refractory period <250 ms), arrhythmia-induced cardiomyopathy, athlete with documented arrhythmia, parental preference (after 5 years).

Procedure: under general anesthesia → 3D electroanatomical mapping (CARTO, EnSite) → arrhythmia mechanism diagnosis → ablation: radiofrequency (RF) — heat-induced lesion or cryoablation — cold-induced lesion. Cryo preferred near AV node (less heart block risk). Success: SVT 95-98%, WPW 95-97%, focal AT 85-90%. Recurrence 5-10%; ~2% complications: AV block, vascular complications, perforation.

Symptoms

Sudden onset palpitations, chest pain
Exercise intolerance
Syncope or near syncope
Pre-excitation on ECG (delta wave)
Recurrent SVT episodes
In infants: irritability, poor feeding

Risk Factors

Wolff-Parkinson-White (WPW) syndrome
Congenital heart disease (Ebstein, transposition)
Cardiac surgery history (atrial scar)
Cardiomyopathy (HCM, ARVC)
Family history (long QT, CPVT)
Drug-induced arrhythmia

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Recurrent palpitations, syncope
  • Resistance to antiarrhythmic drugs
  • Exercise-induced arrhythmia
  • WPW with delta wave
  • Family history of sudden cardiac death
  • Documented SVT episodes

Treatment Methods

01
Pre-procedure: 24h Holter, exercise test, electrophysiology assessment
02
3D electroanatomical mapping (CARTO/EnSite)
03
Radiofrequency ablation (away from AV node)
04
Cryoablation (near AV node)
05
Postop: 24h cardiac monitoring
06
1-3 months: control ECG and Holter

Which Department to Visit?

You can visit our Çocuk Sağlığı ve Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Çocuk Sağlığı ve Hastalıkları Department

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.