Occult arrhythmias as the etiology of unexplained syncope in children with structurally normal hearts
| Autor: | Stanley D Beder, Mark H. Cohen, Thomas A. Riemenschneider |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Male
medicine.medical_specialty Adolescent Sinus bradycardia Hemodynamics Asymptomatic Syncope Heart Conduction System Internal medicine medicine Humans cardiovascular diseases Child biology business.industry Syncope (genus) Arrhythmias Cardiac medicine.disease biology.organism_classification Occult Electrophysiology cardiovascular system Etiology Cardiology Female Supraventricular tachycardia Electrical conduction system of the heart medicine.symptom Cardiology and Cardiovascular Medicine business |
| Zdroj: | American Heart Journal. 109:309-313 |
| ISSN: | 0002-8703 |
| Popis: | We evaluated six children for syncope of unknown etiology between March, 1983, and March, 1984. All had undergone previous neurologic evaluation which was normal. Cardiac examination, chest roentgenograms, and two-dimensional echocardiograms were also normal in all of the patients. Abnormal noninvasive findings in five patients included Mobitz type II atrioventricular (AV) block (one patient), sinus bradycardia (three patients), and supraventricular tachycardia (one patient). Four patients had one or more abnormal findings at invasive electrophysiologic study including evidence of sinus node dysfunction (three patients), AV node dysfunction (three patients), and distal His-Purkinje system disease (two patients). All children had a normal right heart hemodynamic catheterization. We conclude that arrhythmias are an important cause of syncope in some children with an otherwise normal heart when neurologic causes have been excluded. |
| Databáze: | OpenAIRE |
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