2012, Number 5
Acta Pediatr Mex 2012; 33 (5)
Hypernatremia in 79 newborns. Associated factors for an adverse outcome
López-Candiani C, Salamanca- Galicia O
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Hypernatremia is a pathologic condition that is potentially complicated with neurologic damage or death. The aim of the
present was to detect factors associated to adverse outcome in hypernatraemic infant newborns.
Material and method.
A retrospective study was conducted in newborns (NB) from March 1st
, 2001 to February 28th
, 2011 in a pediatric
specialties hospital. 79 patients were included. Age mean was 9 days, birth weight mean was 3143 g. Weight loss median was 19%. Demographic,
clinical, biochemical, therapeutic, complications and outcome data were recorded. Variables were compared between newborns
with adverse and those with favorable outcome.
76% of the NB was exclusively breastfed. More than a half had fever, dried mucosa, jaundice and refused to feed; 38% had hypoglycemia
and 86% renal failure. Mean serum sodium was 165 mEq/L and hourly descent was 0.63mEq/L. 38% had neurologic abnormal
findings and 5% died. Adverse outcome was associated to weight loss › 18% (OR 3, 95% CI 1.1-7.7), serum sodium ≥ 170 mEq/L (OR
14, 95%CI 4.5-47) and sodium descent › 0.6 mEq/L/h (OR 3, 95%CI 1.2-7.8).
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