title: Multiple atrioventricular nodal pathways--a new electrophysiological phenomenon in children.
abstract: Multiple atrioventricular (A-V) nodal pathways are described in five dysrhythmia-free children with congenital heart defects. The five were some (2.9%) of 175 children who underwent diagnostic cardiac catheterization and electrophysiological evaluation over a three year period. Supraventricular tachycardia was not induced during the electrophysiological evaluation. Medical follow-up is recommended since multiple A-V nodal pathways have been demonstrated in adults with A-V nodal reentrant tachycardia.
mesh_terms: D000293:Adolescent; D001283:Atrioventricular Node / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D004594:Electrophysiology; D005260:Female; D006327:Heart Block / Q000209:etiology; D006329:Heart Conduction System / Q000503:physiopathology*; D006330:Heart Defects, Congenital / Q000150:complications / Q000503:physiopathology*; D006801:Humans; D008297:Male