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Revista de investigación clínica

versión impresa ISSN 0034-8376

Resumen

HERNANDEZ-HERRERA, Ricardo et al. Hypoglycemia in the newborns of women with diabetes mellitus. Rev. invest. clín. [online]. 2006, vol.58, n.4, pp.285-288. ISSN 0034-8376.

Neonatal hypoglycemia is a frequent event in the first hours of life of newborns from mothers with diabetes mellitus. We studied a group of diabetic mothers newborns during the first day of life, taking venous blood samples at < 6 h, 6-12 h and 12-24 h of life for glucose analysis (n = 85), defining hypoglycaemia as a glucose level < 35 mg/dL. Calcium serum levels were also determined in the first venous sample in 19 neonates and 7 mEq/L was the criteria for hypocalcemia. The mothers age (mean ± standard deviation) was 30.5 ± 5.5 years (range 16-41 years), 43 (50.6%) of them with gestational diabetes, 40 (47.1%) with type 2 diabetes and 2 (2.4%) with type 1 diabetes. Pregnancies ended by caesarean section in 78 (91.8%) and by partum in seven (8.2%) women. There were 20 (23.5%) preterm newborns. In relation to neonates weight, 27 (31.7%) were macrosomic and 7 (8.2%) were premature, two of them with very low weight. A total of 55 (64.7%) newborns had hypoglycaemia, but only one of them had a convulsive episode, the rest were asymptomatic. In relation to the newborns weight, 18 (66.6%) of the macrosomic, 33 (64.7%) of the normal weight and four (57.1%) of the premature groups had hypoglycaemia. The comparisons between the newborns weight groups showed non significant differences, but the prevalence of neonatal hypoglycaemia was significantly higher in the group of gestational diabetes than in the type 2 diabetes group (p < 0.05). Calcium analysis also disclosed asymptomatic hypocalcemia in five (7.25%) newborns. These results show an elevated prevalence of asymptomatic neonatal hypoglycaemia in the offspring of women with diabetes mellitus in their early hours of life, and stress the importance of systematic glucose monitoring and early treatment in the first hours of life of these neonates.

Palabras llave : Neonatal hypoglycemia; Diabetes and pregnancy; Gestational diabetes.

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