title: Lack of connection between the atria and the more peripheral conduction system in congenital atrioventricular block.
mesh_terms: D001344:Autopsy; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000002:abnormalities* / Q000473:pathology; D006327:Heart Block / Q000151:congenital* / Q000196:embryology / Q000473:pathology; D006329:Heart Conduction System / Q000002:abnormalities* / Q000196:embryology / Q000473:pathology; D006352:Heart Ventricles / Q000473:pathology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male