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ORIGINAL ARTICLE
Year : 2019  |  Volume : 7  |  Issue : 1  |  Page : 48-52

Correlation of cord blood bilirubin values with neonatal jaundice in healthy newborns: A prospective observational study


1 Department of Pediatrics, World College of Medical Sciences, Jhajjar, Haryana, India
2 Department of Gastroenterology, Vikas Hospital Pvt Ltd, New Delhi, India

Correspondence Address:
Dr. Jehangir Allam Bhat
World College of Medical Sciences, Jhajjar, Haryana
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/amhs.amhs_2_19

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Background and Objective: Hyperbilirubinemia is the most common clinical condition requiring evaluation and treatment in the newborn and a frequent reason for hospital readmission during the 1st week of life. Although generally a benign, postnatal, transitional phenomenon, a few neonates develop marked potentially hazardous bilirubin levels that can pose a direct threat of serious brain injury. The present study was conducted to investigate the predictability of pathological jaundice on cord blood bilirubin (CBB) values. Materials and Methods: This was a prospective observational study conducted on 289 healthy newborns. Babies were divided into two groups: Group A who developed physiological jaundice and Group B who developed pathological jaundice. CBB was estimated in all newborns who were then followed up to the 5th day of life. Babies who developed jaundice requiring treatment were admitted in neonatal intensive care unit for phototherapy. Other neonates were checked regularly up to the 5th day of life and values were recorded on the 5th day by estimation of serum bilirubin. Results: Incidence of pathological hyperbilirubinemia in our study was 11.2%. A statistically significant correlation between CBB and development of pathological jaundice was observed. Gender, age, mode of delivery, and birth weight has no correlation with cord bilirubin and the subsequent development of jaundice. CBB <2.5 mg/dl when compared with subsequent development of jaundice has high specificity (83.92%) and negative predictive value (87.35%). Cord blood value of >3.5 mg/dl has high sensitivity (97.06%), specificity (99.22%), positive predictive value (94.29%), and negative predictive value (99.61%) in predicting future development of future pathological jaundice. Conclusion: The present study suggests that in healthy term babies (CBB ≤2.5 mg/dl), cord serum bilirubin can help to identify those newborns who are unlikely to require further evaluation and intervention. These newborns can be discharged with assurance to parents. Babies with CBB level ≥3 mg/dl should be followed more frequently. Thus, this study concludes that cord blood total bilirubin levels reliably predict the occurrence of pathological hyperbilirubinemia.


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