• B Pagis, E Villain, F Hidden-Lucet, R Frank, and D Sidi.
• Service de cardiologie pédiatrique, hôpital Necker Enfants-Malades, AP-HP, 149, rue de Sèvres, 75743 Paris, France.
• Arch Pediatr. 2003 Jan 1; 10 (1): 38-41.

UnlabelledIn children, Wolff-Parkinson-White (WPW) syndrome is often revealed by reentrant tachycardia episodes. Rarely, this syndrome can be the cause of syncope or of sudden death, resulting from rapid conduction of atrial fibrillation to the ventricles through the accessory pathway.Case ReportThe authors report the case of a child, who had a WPW syndrome diagnosed after birth because of a supraventricular tachycardia and who was later asymptomatic. At ten years of age, he was admitted because of palpitations due to atrial fibrillation and rapid conduction through the accessory pathway.ConclusionIn a child with WPW syndrome, tachycardia with wide and irregular QRS complexes should evoke the involvement of atrial fibrillation, with rapid conduction to the ventricle. Drugs blocking conduction through the atrio-ventricular node are contra-indicated and the condition is an indication for radiofrequency ablation.

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