Umbilical cord blood pH and risk factors for acidaemia in neonates in Kerman.
A prospective cross-sectional study was carried out to determine the relationship and predictive value of umbilical cord blood pH for adverse neonatal outcomes. A total of 400 singleton term infants delivered by vaginal delivery or caesarean section were studied at a hospital in Kerman, Islamic Republic of Iran, in 2001. Mean (SD) umbilical cord blood pH was 7.25 +/- 0.14 and 81 cases had acidaemia (pH < 7.1). Apgar score at 1 minute and fetal distress were significantly related to acidaemia. There was also a significant relation between meconium-stained amniotic fluid and acidaemia. Logistic regression analysis showed that Apgar score < 7 at 1 minute, meconium-stained amniotic fluid and fetal distress were significant risk factors for acidaemia in newborn infants. Umbilical cord blood acid-base alterations are related to subsequent adverse outcome events for neonates.
Department of Obstetrics and Gynaecology, Kerman University of Medical Sciences and Health Services, Kerman, Islamic Republic of Iran. vidamodaress@yahoo.com
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D000138:Acidosis / Q000097:blood* / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*; D000653:Amniotic Fluid; D001034:Apgar Score; D001724:Birth Weight; D001784:Blood Gas Analysis / Q000379:methods* / Q000592:standards; D016009:Chi-Square Distribution; D003430:Cross-Sectional Studies; D036861:Delivery, Obstetric / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D005312:Fetal Blood / Q000737:chemistry*; D005316:Fetal Distress / Q000150:complications; D005865:Gestational Age; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D007492:Iran / Q000453:epidemiology; D016015:Logistic Models; D008470:Meconium; D011237:Predictive Value of Tests; D011247:Pregnancy; D011256:Pregnancy Outcome; D011446:Prospective Studies; D012307:Risk Factors