Chronotropic competence of the sinus node in congenital complete heart block.
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.
Menon
A
A
Department of Pediatrics, The Hospital for Sick Children, and the University of Toronto, Ontario, Canada.
Silverman
E D
ED
Gow
R M
RM
Hamilton
R M
RM
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*
D000888:Antibodies, Anti-Idiotypic; D001323:Autoantibodies; D012261:Ribonucleoproteins