title: Chronotropic competence of the sinus node in congenital complete heart block.
abstract: Electrocardiograms taken at rest of 2 children with transplacental exposure to anti-Ro antibody but 1:1 atrioventricular conduction demonstrated sinus node disease. Treadmill exercise testing of 28 patients with congenital complete heart block found 3 patients with chronotropic incompetence of the sinus node.
authors.affiliation: Department of Pediatrics, The Hospital for Sick Children, and the University of Toronto, Ontario, Canada.
authors.forename: A
authors.initials: A
authors.lastname: Menon
authors.forename: E D
authors.initials: ED
authors.lastname: Silverman
authors.forename: R M
authors.initials: RM
authors.lastname: Gow
authors.forename: R M
authors.initials: RM
authors.lastname: Hamilton
mesh_terms: D000293:Adolescent; D000888:Antibodies, Anti-Idiotypic; D001323:Autoantibodies; D002304:Cardiac Pacing, Artificial; D005080:Exercise Test; D006327:Heart Block / Q000151:congenital* / Q000503:physiopathology*; D006339:Heart Rate; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012261:Ribonucleoproteins / Q000276:immunology*; D012849:Sinoatrial Node / Q000473:pathology / Q000503:physiopathology*
chemical_list: D000888:Antibodies, Anti-Idiotypic; D001323:Autoantibodies; D012261:Ribonucleoproteins