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Carboxyhemoglobin Measurements in the Diagnosis of ABO Hemolytic Disease
Author(s) -
Uetani Yoshiyuki,
Nakamura Hajime,
Okamoto Osamu,
Yamazaki Takemi,
Vreman Hendrik J.,
Stevenson David K.
Publication year - 1989
Publication title -
pediatrics international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.49
H-Index - 63
eISSN - 1442-200X
pISSN - 1328-8067
DOI - 10.1111/j.1442-200x.1989.tb01285.x
Subject(s) - medicine , carboxyhemoglobin , abo blood group system , immunology , chemistry , carbon monoxide , catalysis , biochemistry
To assess hemolysis in hyperbilirubinemic infants with ABO isoimmunization, we measured the carboxyhemoglobin (HbCO) concentrations in full‐term infants with ABO isoimmunization during the first week of life. Two groups of infants, ABO compatible (n=34) and ABO incompatible (n=30), were further divided into two groups with and without hyperbilirubi‐nemia. All the infants from ABO incompatible pregnancies showed a positive indirect Coombs' test. The groups with hyperbilirubinemia included infants with maximum serum total bilirubin levels about 15 mg/dL and infants treated by phototherapy or exchange transfusion. In the ABO incompatible infants, the HbCO levels in those with hyperbilirubinemia were significantly higher than in infants without hyperbilirubinemia during the first week after birth (p < 0.01 at 24, 72, 120 hours after birth, respectively). The levels of HbCO in the ABO incompatible infants with hyperbilirubinemia were significantly higher compared with the levels in the ABO compatible infants with hyperbilirubinemia (p < 0.05 at 24 hours, p < 0.01 at 72 and 120 hours after birth, respectively). HbCO measurement may facilitate the early diagnosis of hemolytic disease and the prediction of jaundice caused by ABO isoimmunization.