Diagnosing hypoglycemia in infants and children presents significant challenges. Our objective was to elucidate the diagnoses and clinical features of children with hypoglycemia referred to a pediatric endocrine tertiary clinic.Retrospective study of 154 children (0-18 years old) presenting with hypoglycemia, during 1992-2018.The cohort was divided by clinical diagnosis into six groups: ketotic hypoglycemia (n=45, 29.2%), congenital hyperinsulinemic hypoglycemia (n=35, 22.7%), transient hyperinsulinemic hypoglycemia (n=28, 18.2%), metabolic disorder (n=14, 9.1%), systemic disease/syndrome (n=15, 9.7%), and hormone deficiencies (n=8, 5.2%). Two patients had insulinoma and in 7 (4.5%) no diagnosis was elucidated. At diagnosis, 58 (37.7%) were <1 month old, 23 (14.9%) aged 1-12 months, 58 (37.7%) aged 1-6 years, and 15 (9.7%) aged 6-18 years. Hypoglycemia etiology varied among neonates, infants, and children. In eight patients hypoglycemia was asymptomatic. Of 47 patients who completed a diagnostic fast, 31 became hypoglycemic, yet a significant added value for diagnosis was only found in 14 (29.8%) patients.Hypoglycemia etiology in children is heterogeneous and varies by age. Any hypoglycemia measured in a child should be seriously evaluated as 7% are asymptomatic. Work-up should be tailored based on age, and clinical, biochemical, and imaging findings. Despite extensive work-up, in a significant number of patients the mechanism underlying pediatric hypoglycemia remains an enigma. This emphasizes the unmet needs and challenges in studying pediatric hypoglycemia.
Objective. To compare the efficacy and feasibility of continuous subcutaneous insulin infusion (CSII) with multiple daily insulin injections (MDI) in children with type 1 diabetes. Methods. The study sample included 23 children (10 males) aged 9.4 to 13.9 years with type 1 diabetes. An open randomized crossover design was used to compare 3.5 months of CSII to 3.5 months of MDI therapy for the following variables: diabetic control, incidence of adverse events, daily insulin requirement, body mass index standard deviation scores, treatment satisfaction, and quality of life. Results. The changes in HbA1c and fructoseamine values were similar in the 2 arms over time. At the end of the study, mean HbA1c level measured 8.05 ± 0.78%. There were no differences between the treatment modes in frequency of symptomatic hypoglycemic or hyperglycemic events. There was 1 event of severe hypoglycemia during pump therapy and 3 during MDI, yielding a rate of 0.26 events per patient-year. There were no episodes of diabetic ketoacidosis. Body mass index standard deviation scores decreased during CSII and increased during MDI, as did mean insulin dose. Patients expressed a higher treatment satisfaction from CSII than MDI, although there was no difference in quality of life between the 2 modes. Conclusions. Intensive insulin therapy by either insulin pump or MDI is safe in children and young adolescents with type 1 diabetes, with similar diabetes control and a very low rate of adverse events. We suggest that both modes be available to the diabetic team to better tailor therapy.
In recent years more and more genetic defects along the GHRH-GH-IGF-I axis have been reported. Mutations of the IGF-I receptor (R) are a rare abnormality of whom only the heterozygote progenies survive.To summarize, from the literature, data on birth length, weight and head circumference of neonates with IGF-I-R mutations, and to correlate the data with that of other types of mutations in the GH/IGF-I axis.Sixty seven neonates from 24 published articles were included and forty seven different mutations of the IGF-I (R) located on chromosome 15 have been identified.Mean (±SD) birth length (BL), available for 26, (10 M, 16F) neonates with a gestational age of 34-41weeks, was 44.2±4cm; one was premature (30cm at 31 weeks). There was a significant correlation between birth length and gestational age (GA) r=0.71 (p>.001). Mean birth weight (BW) of 41 neonates (18M, 23F) was 2388±743gr. Two premature neonates weighed 650gr and 950gr respectively. The BW correlated significantly with gestational age, (males: r=0.68; p=0.007, females: r=0.49; p=0.024). The BMI of 25 neonates ranged from 6 to 13. In 22 records marked microcephaly was ascertained or stated. Nine of 16 mothers were short (133 -148cm), m±SD = 150.5±7.3cm.
To evaluate the prevalence of hepatitis B virus (HBV) and hepatitis D virus (HDV) infection among intravenous drug addicts (IVDA) in Israel, serum samples were collected from 400 asymptomatic individuals attending a methadone clinic in Tel Aviv. Overall 5.5% were HBsAg positive, 2.4% HBeAg positive, 52% anti-HBc positive and 6.6% were positive for anti-HD. Anti-HD was identified in 18% of addicts who were HBsAg positive and in 3% who were HBsAg negative and anti-HBc positive. Strong correlation was found between positivity to HBV antibodies and age and duration of drug use. History of jaundice correlated more strongly with anti-HD positivity than with presence of antibodies to HBV. We conclude that Israeli IVDA are less exposed to HBV and HDV infection than their North American and European counterparts.
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