Serological profile and hemolytic disease in term neonates with ABO incompatibility

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Abstract

Background Hemolytic disease of the newborn (HDN) due toABO blood type incompatibility is one of the most commoncause of neonatal hyperbilirubunemia that potentially leads tobilirubin encephalopathy. Data on ABO-hemolytic disease of thenewborn (ABO-HDN), especially regarding umbilical cord bloodserological profile, are limited.Objective To identify the serological profile and hemolytic disease in term neonates with ABO incompatibility.Methods This was a cross-sectional descriptive study, conductedat RSIA Budi Kemuliaan Jakarta.Results We found 68 healthy term neonates with ABOincompatibility, nine of them had positive direct antiglobulintest (OAT) result, and 38 subjects had a positive result onOAT with elution method. The highest titer of IgG was 1:8.Hyperbilirubinemia was found in 30 ( 44%) subjects, andABO-HDN was diagnosed in 28 (41 %) subjects. Within thepositive OAT group, eight out of nine subjects had sufferedfrom hyperbilirubinemia and ABO-HDN. Meanwhile, withinthe positive OAT with elution method group; 24 subjects hadsuffered from hyperbilirubinemia with 23 of them having ABOHDN. Based on the chi-square analysis; those with positive OAT with elution method had 3.2 times higher risk of suffering from ABO-HDN. Furthermore, there was a 3.6 times higher risk ofsufferring from hyperbilirubinemia.Conclusion In healthy term neonates with ABO incompatibility,the incidence of ABO-HDN is 41%. OAT serological examinationwith elution method is better than OAT in assessing riskfor hyperbilirubinemia and ABO-HDN.
Original languageEnglish
Pages (from-to)219-223
JournalPaediatrica Indonesiana
Volume49
Issue number4
DOIs
Publication statusPublished - 2009

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