CLINICAL AND SEROLOGICAL IDENTIFICATION OF 2 FORMS OF COMPLETE HEART-BLOCK IN CHILDREN

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dc.contributor.authorHUBSCHER, O
dc.contributor.authorBATISTA, N
dc.contributor.authorRIVERO, S
dc.contributor.authorMARLETTA, C
dc.contributor.authorARRIAGADA, M
dc.contributor.authorBOIRE, G
dc.contributor.authorMENARD, HA
dc.contributor.authorARANA, RM
dc.date.accessioned2025-01-21T01:34:40Z
dc.date.available2025-01-21T01:34:40Z
dc.date.issued1995
dc.description.abstractObjective. To study the association of maternal antibodies to Ro(SSA) and/or La(SSB) with isolated complete congenital heart block (CCHB) in children according to the child's age at detection.
dc.description.abstractMethods. Sera from 17 mothers of 18 children with CCHB of unidentified cause were studied, Autoantibodies were measured by double immunodiffusion, enzyme linked immunosorbent assay (ELISA), Western blot, and immunoprecipitation from cell extracts. Statistical analysis used the chi(2) test with Yates' correction.
dc.description.abstractResults. CCHB was diagnosed in 12 children of 11 mothers before the age of 3 mo (Group A) and in 6 children of 6 mothers after the age of 17 mo (Group B), Seven Group A mothers and no Group B mother had connective tissue disorders; autoantibodies were found in 9/11 Group A and in 1/6 Group B mothers (p < 0.01), Eight Group A children needed a pacemaker and one other died of cardiac insufficiency, whereas only one of the 6 Group B children needed a pacemaker. Interestingly, this latter child was the only one from Group B whose mother's serum contained autoantibodies. Irrespective of their age at diagnosis, the children with CCHB who needed a pacemaker and the one who died were born to mothers with autoantibodies (p < 0.001).
dc.description.abstractConclusion. CCHB detected before the age of 3 mo is highly associated with the presence of anti-Ro(SSA)/La(SSB) in the mothers, while CCHB diagnosed later is generally not, For epidemiological studies, the former type should be considered early onset as opposed to late onset CCHB in the latter type, Establishing this clinicoserological distinction is also important for the children, since it alerts the clinician to a more severe prognosis (necessity of a pacemaker), even in the rare occurrence of late diagnosed CCHB.
dc.fuente.origenWOS
dc.identifier.issn0315-162X
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97588
dc.identifier.wosidWOS:A1995RG24600025
dc.issue.numero7
dc.language.isoen
dc.pagina.final1355
dc.pagina.inicio1352
dc.revistaJournal of rheumatology
dc.rightsacceso restringido
dc.subjectCONGENITAL COMPLETE HEART BLOCK
dc.subjectANTI-RO(SSA) ANTIBODIES
dc.subjectNEONATAL LUPUS
dc.subjectMATERNAL AUTOANTIBODIES
dc.subjectANTI-LA(SSB) ANTIBODIES
dc.subjectCONNECTIVE TISSUE DISEASE
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleCLINICAL AND SEROLOGICAL IDENTIFICATION OF 2 FORMS OF COMPLETE HEART-BLOCK IN CHILDREN
dc.typeartículo
dc.volumen22
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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