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[Physiologic levels of bilirubin and behavior in healty infants during the neonatal period]. 1992

M L de Cáceres y Zurita, and C Costas i Moragas, and F Botet i Mussons, and S Rosales Vidal-Quadras
Departamento de Psicología de la Salud, Facultad de Psicología, Universidad Autónoma de Barcelona.

The purpose of this study was to evaluate behavioral differences in healthy newborns in relationship to bilirubin serum levels within the normal physiological range. Seventy-three healthy full-term newborns of adequate weight for their gestational age had bilirubin levels measured in a blood sample obtained by heel puncture on the third day of life. The Brazelton Neonatal Behavioral Assessment Scale (NBAS, 1984 version) was administered between the 60th and 80th hours of life. Results showed a mean bilirubin value of 123.12 mumol/L (7.2 mg/dL). There was an inverse correlation between serum bilirubin levels and behavior in regards to habituation, orientation, motor maturity and interaction of the NBAS. Although it can not be concluded that physiological bilirubin levels cause significant neurological disturbances, these results suggest that newborns with higher physiological bilirubin levels have some difficulties interacting with their caretakers.

UI MeSH Term Description Entries
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007567 Jaundice, Neonatal Yellow discoloration of the SKIN; MUCOUS MEMBRANE; and SCLERA in the NEWBORN. It is a sign of NEONATAL HYPERBILIRUBINEMIA. Most cases are transient self-limiting (PHYSIOLOGICAL NEONATAL JAUNDICE) occurring in the first week of life, but some can be a sign of pathological disorders, particularly LIVER DISEASES. Icterus Gravis Neonatorum,Neonatal Jaundice,Physiological Neonatal Jaundice,Severe Jaundice in Neonate,Severe Jaundice in Newborn,Jaundice, Physiological Neonatal,Neonatal Jaundice, Physiological
D009048 Motor Skills Performance of complex motor acts. Motor Skill,Skill, Motor,Skills, Motor
D009949 Orientation Awareness of oneself in relation to time, place and person. Cognitive Orientation,Mental Orientation,Psychological Orientation,Cognitive Orientations,Mental Orientations,Orientation, Cognitive,Orientation, Mental,Orientation, Psychological,Orientations,Orientations, Cognitive,Orientations, Mental,Orientations, Psychological,Psychological Orientations
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D002652 Child Behavior Any observable response or action of a child from 24 months through 12 years of age. For neonates or children younger than 24 months, INFANT BEHAVIOR is available. Behavior, Child
D002653 Child Behavior Disorders Disturbances considered to be pathological based on age and stage appropriateness, e.g., conduct disturbances and anaclitic depression. This concept does not include psychoneuroses, psychoses, or personality disorders with fixed patterns. Childhood Behavior Disorders,Behavior Disorder, Child,Behavior Disorder, Childhood,Child Behavior Disorder,Childhood Behavior Disorder,Disorder, Childhood Behavior
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D005865 Gestational Age The age of the conceptus, beginning from the time of FERTILIZATION. In clinical obstetrics, the gestational age is often estimated from the onset of the last MENSTRUATION which is about 2 weeks before OVULATION and fertilization. It is also estimated to begin from fertilization, estrus, coitus, or artificial insemination. Embryologic Age,Fetal Maturity, Chronologic,Chronologic Fetal Maturity,Fetal Age,Maturity, Chronologic Fetal,Age, Embryologic,Age, Fetal,Age, Gestational,Ages, Embryologic,Ages, Fetal,Ages, Gestational,Embryologic Ages,Fetal Ages,Gestational Ages
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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