Abstract
To determine the incidence of hypernatremic dehydration associated to indirect hyperbilirrubinemia and its clinical features, compared with other frequency measures orldwide accepted. Methodology: this was a prospective study in which full-term newborns of a third level health institution in Bogota, Colombia, who assisted between January 2005 and December 2007, were included. Variables registered included: gestational week, birth weight, age at the time of register, feeding style, seric sodium higher than 150 meq/ lt, jaundice, bilirrubines level, dehydration signs, main complain, service, complications, mortality, maternal age, number of pregnancies and form of delivery. Exclusion criteria: preterm newborns, underweight newborns, intrauterine growth retardation and congenital malformations. In the statistical analysis we obtained absolute frequencies distribution for qualitative variables and central tendency measures were obtained for quantitative variables. Results: 65 patients were included in the study, incidence was of 15.1 per 1000 live born; mean sodium 153.3 meq/lt, total bilirrubine 16.6mg/dl. 78.4% were registered by the emergencyservice, 63% sought medical help due to jaundice, 86.1% presented dehydration, 6.15% hypoglicemia, 1.5% enterocolitis, 1.5% metabolic acydosis. No deaths were recorded. 70.7% were primigestant mothers, mean age 31.7 years, 55.3% had vaginal delivery and 98.4% were only breastfeeding. Conclusions: an elevated incidence of hypernatremic incidence was found associated with jaundice and to breastfeeding compared with results from published literature.
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