The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2013
Two-year outcomes for infants with low cord pH at birth.
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Kayani Salma I, Joo Tan Maw, Shaw Nigel J, Dewhurst Christopher, Titman Andrew, Lancaster Gillian, Alfirevic Zarko
Аннотация
OBJECTIVE: To determine the long-term outcome of infants born with cord pH ≤ 7.0 and no clinical evidence of asphyxia at birth.
SETTING: Tertiary Referral Centre. A prospective matched cohort study was conducted. 51 term infants were recruited following singleton birth with venous cord pH ≤ 7.0. For each recruited baby a healthy baby with normal cord pH ≥ 7.20 was recruited matched for gestation, gender and mode of delivery. Ages and Stages Questionnaires (ASQ)(TM) and Health Screening Questionnaires (HSQ) were sent out at 24 months of age. Two independent assessors, blinded to the case assignment, reviewed intrapartum and neonatal events to look for clinical evidence of birth asphyxia among the cases.
RESULT: From 102 infants recruited, 62 questionnaires (24 cases, 38 controls) were returned. 20 matched pairs with no clinical evidence of birth asphyxia were available for analysis. The groups were similar except in terms of birth weight; the pH ≥ 7.0 group had mean birth weight 584 g lower than controls (p = 0.005). The ASQ motor scores were lower in children born with low cord pH (p = 0.019); however, once adjusted for birth weight, the difference was not significant (p = 0.289).
CONCLUSION: It is unlikely that abnormal cord pH in otherwise healthy neonates leads to a substantially increased risk of abnormal neurodevelopmental outcome or severe health problems by 2 years of age.
SETTING: Tertiary Referral Centre. A prospective matched cohort study was conducted. 51 term infants were recruited following singleton birth with venous cord pH ≤ 7.0. For each recruited baby a healthy baby with normal cord pH ≥ 7.20 was recruited matched for gestation, gender and mode of delivery. Ages and Stages Questionnaires (ASQ)(TM) and Health Screening Questionnaires (HSQ) were sent out at 24 months of age. Two independent assessors, blinded to the case assignment, reviewed intrapartum and neonatal events to look for clinical evidence of birth asphyxia among the cases.
RESULT: From 102 infants recruited, 62 questionnaires (24 cases, 38 controls) were returned. 20 matched pairs with no clinical evidence of birth asphyxia were available for analysis. The groups were similar except in terms of birth weight; the pH ≥ 7.0 group had mean birth weight 584 g lower than controls (p = 0.005). The ASQ motor scores were lower in children born with low cord pH (p = 0.019); however, once adjusted for birth weight, the difference was not significant (p = 0.289).
CONCLUSION: It is unlikely that abnormal cord pH in otherwise healthy neonates leads to a substantially increased risk of abnormal neurodevelopmental outcome or severe health problems by 2 years of age.