title: [Sinus node dysfunction in a "healthy heart" in an infant. A case report].
abstract: Sinus node dysfunction (SND) is a rare cause of bradycardia in children without structural heart disease. However the association between (SND) and abnormality of atrio-ventricular conduction, is more uncommon. We report a case of a child 23 months old, admitted in the cardiology department for a symptomatic bradycardia. Routine ECG and 24-h-Holter monitoring showed atrioventricular junctional rhythms with minimal rates of 24 bpm and episodes of asystole with a maximal duration of 3.7 seconds. The children was implanted with a permanent VVIR mode pacemaker to relieve his symptoms. During a follow-up period of four years, the child developed syncope, the epicardial pacing lead was broken and atrioventricular block was observed. A second pacemaker was inserted by a subclavicular vein, and was programmed in VVIR mode.
authors.affiliation: Service de Cardiologie, Hôpital Militaire Principal d'Instruction de Tunis, Tunisie.
authors.forename: Dhaker
authors.initials: D
authors.lastname: Lahidheb
authors.forename: Wafa
authors.initials: W
authors.lastname: Fehri
authors.forename: Zahhreddine
authors.initials: Z
authors.lastname: Smiri
authors.forename: Mostari
authors.initials: M
authors.lastname: Gharbi
authors.forename: Nadia
authors.initials: N
authors.lastname: Barakett
authors.forename: Habib
authors.initials: H
authors.lastname: Haouala
authors.forename: Mohamed
authors.initials: M
authors.lastname: Guediche
mesh_terms: D001146:Arrhythmia, Sinus / Q000150:complications / Q000175:diagnosis* / Q000628:therapy*; D001919:Bradycardia / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy*; D004562:Electrocardiography; D015716:Electrocardiography, Ambulatory; D005500:Follow-Up Studies; D006323:Heart Arrest / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy*; D006327:Heart Block / Q000209:etiology; D006339:Heart Rate; D006801:Humans; D007223:Infant; D008297:Male; D010138:Pacemaker, Artificial; D013575:Syncope / Q000209:etiology; D016896:Treatment Outcome