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[Idiopathic ventricular arrhythmia in children. Apropos of 24 cases].

Abstract
The severity and prognosis of idiopathic ventricular arrhythmias in childhood were studied in 24 patients (12 boys, 12 girls) with an average age of 8 years at the time of diagnosis of the arrhythmia. Investigations included clinical assessment and analysis of basal ECG (morphology of the arrhythmias) and dynamic recordings (Holter and exercise stress testing). The clinical course was followed for an average of 3.8 years. The patients were classified in two groups: monomorphic arrhythmias (Group I) and polymorphic arrhythmias (Group II). Group I was divided into 4 subgroups: isolated ventricular extrasystoles (IA), 11 patients; ventricular extrasystoles with bursts of ventricular tachycardia (IB), 6 patients; sustained ventricular tachycardia without intercritical extrasystoles (IC), 1 patient; accelerated idioventricular rhythm (ID), 2 patients. Subgroups IA, IB and ID were characterised by the absence of symptoms, the disappearance of the arrhythmia on exercise, the decreased efficacy of antiarrhythmic drugs and an excellent prognosis. Therapeutic abstention was the rule in these patients. Patients in Group IC were characterised by the variability of their symptoms, the absence of exercise induced arrhythmias, the need for treatment in most cases and a good long-term prognosis. Group II was divided into 2 subgroups: adrenergic polymorphic ventricular tachycardia (IIA), 2 patients, and non-adrenergic polymorphic ventricular tachycardia (IIB), 2 patients. Patients in Subgroup IIA were characterised by syncope on exercise or emotion, the need for betablocker therapy which considerably improved the patients symptoms but which did not usually prevent sudden death.(ABSTRACT TRUNCATED AT 250 WORDS)
AuthorsA Coeurderoy, C Almange, M Laurent, Y Biron, P Leborgne
JournalArchives des maladies du coeur et des vaisseaux (Arch Mal Coeur Vaiss) Vol. 78 Issue 13 Pg. 1946-53 (Dec 1985) ISSN: 0003-9683 [Print] FRANCE
Vernacular TitleArythmies ventriculaires idiopathiques de l'enfant. A propos de 24 observations.
PMID2421676 (Publication Type: English Abstract, Journal Article)
Topics
  • Adolescent
  • Arrhythmias, Cardiac (physiopathology)
  • Cardiac Complexes, Premature (physiopathology)
  • Child
  • Child, Preschool
  • Electrocardiography
  • Female
  • Follow-Up Studies
  • Heart Ventricles
  • Humans
  • Infant
  • Infant, Newborn
  • Male
  • Prognosis
  • Sympathetic Nervous System (physiopathology)
  • Tachycardia (physiopathology)

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