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Coumel tachycardia in children
Enrique Velázquez-Rodríguez1, Norberto García-Hernández1, Arturo Martínez-Sánchez2,3
1Servicio de Electrofisiología.
Boletin Medico Del Hospital Infantil De Mexico
|July 25, 2023
Summary
Coumel tachycardia, a rare supraventricular tachycardia in children, often resists drug treatment. Radiofrequency catheter ablation offers a safe and effective solution, leading to symptom-free recovery.
Area of Science:
- Pediatric Cardiology
- Electrophysiology
- Cardiac Arrhythmias
Background:
- Coumel tachycardia is an uncommon supraventricular tachycardia (SVT) primarily affecting infants and children.
- It is characterized by an accessory pathway with slow retrograde conduction, leading to a distinct ECG pattern (long RP' interval, negative P waves).
Observation:
- A retrospective review of five pediatric patients (mean age 11 years) with Coumel tachycardia was conducted.
- Patients experienced persistent tachycardia refractory to antiarrhythmic drugs, with one developing cardiomyopathy.
- Incessant tachycardia with >85% density was noted on 24-hour Holter monitoring.
Findings:
- All five pediatric patients underwent successful radiofrequency catheter ablation with no complications.
- A mean of 5 applications were needed in a single session.
- Following a mean 24-month follow-up, all patients remained asymptomatic and free from recurrence without medication.
Implications:
- Coumel tachycardia poses a significant risk of cardiomyopathy due to its persistent nature and resistance to medical therapy.
- Radiofrequency catheter ablation is a highly effective and safe treatment option for pediatric Coumel tachycardia.
- Prompt consideration of catheter ablation is recommended for affected children based on individual assessment.
Keywords:
Ablación con catéter en niñosCardiomiopatía inducida por taquicardiaCatheter ablation in childrenCoumel tachycardiaPermanent junctional reciprocating tachycardiaSupraventricular tachycardiaTachycardia induced-cardiomyopathyTaquicardia de CoumelTaquicardia recíproca permanente de la uniónTaquicardia supraventricularMore Related Videos
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