PHYSIOLOGICAL AND MATERNAL CAUSES OF NEONATAL JAUNDICE. SYSTEMATIC REVIEW

Authors

Keywords:

Jaundice, Neonatal; Hyperbilirubinemia; Recién Nacido; Blood Group Incompatibility; Kernicterus

Abstract

DOI: https://doi.org/10.46296/gt.v8i16.0297

Abstract

Neonatal jaundice is a common clinical manifestation affecting between 60% and 80% of full-term newborns and more than 80% of preterm infants, causing approximately 114000 deaths annually and more than 63000 cases of preventable neurological disability worldwide. This condition results from intrinsic physiological mechanisms of the newborn and maternal factors that increase the risk of hyperbilirubinemia. The overall objective was to analyze the physiological and maternal causes of neonatal jaundice. A systematic review was conducted following PRISMA guidelines, including articles published between 2020 and 2025 in Spanish, English, and Portuguese. The search was conducted in PubMed, Scopus, and SciELO, initially identifying 353 records. After applying eligibility criteria, 20 articles addressing physiological and maternal causes of neonatal hyperbilirubinemia were selected. The results showed that the main physiological causes include immaturity of the hepatic conjugation system with reduced UGT1A1 enzyme activity, shortened erythrocyte lifespan, glucose-6-phosphate dehydrogenase deficiency, prematurity, low birth weight, and increased enterohepatic circulation. The most significant maternal factors were ABO incompatibility (present in 30.7% to 50% of cases), advanced maternal age over 35 years, cesarean delivery, gestational diabetes, hypertensive disorders, perinatal infections, and problems related to inadequate breastfeeding. The synergistic interaction between physiological and maternal causes exponentially increases the severity of hyperbilirubinemia, increasing the risk of serious neurological complications. It is concluded that early identification of physiological and maternal risk factors allows for the implementation of effective preventive strategies, reducing associated neonatal morbidity and mortality. Prenatal maternal education, close monitoring of high-risk newborns, and standardized screening protocols are essential to prevent severe cases of kernicterus.

Keywords: Jaundice, Neonatal; Hyperbilirubinemia; Recién Nacido; Blood Group Incompatibility; Kernicterus.

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References

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Published

2025-11-21

How to Cite

Quishpe-Curicho, L. A., & Analuisa-Jimenez, E. I. (2025). PHYSIOLOGICAL AND MATERNAL CAUSES OF NEONATAL JAUNDICE. SYSTEMATIC REVIEW. GESTAR Arbitrated Scientific Journal in Health Research. ISSN: 2737-6273., 8(16), 918-950. Retrieved from https://www.journalgestar.org/index.php/gestar/article/view/263