Higher C-peptide levels and glucose requirements may identify neonates with transient hyperinsulinism hypoglycemia who will benefit from diazoxide treatment

Anita Schachter Davidov, Erella Elkon-Tamir, Alon Haham, Gabi Shefer, Naomi Weintrob, Asaf Oren, Yael Lebenthal, Dror Mandel, Ori Eyal*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The aim of the study was to characterize factors that may serve as clinical tools to identify neonates with transient neonatal hyperinsulinism hypoglycemia (HH) who may benefit from diazoxide treatment. This retrospective study included 141 neonates with transient HH (93 males) of whom 34 (24%) were treated with diazoxide. Diazoxide treatment was started at median age of 13 days (range 5–35) and discontinued at median age of 42 days (range 14–224). The maximal dose was 7.1 ± 2.3 mg/kg/day. Diazoxide-treated neonates required a higher glucose infusion rate (GIR) compared with non-treated neonates (16.6 ± 3.4 vs. 10.4 ± 4.0 mg/kg/min, respectively, P <.01), had a longer duration of intravenous fluids (15.9 ± 9.3 vs. 7.8 ± 6.5 days, P <.01), a longer hospitalization (32.8 ± 22.7 vs. 20.4 ± 13.4 days, P <.01), a longer duration of carbohydrate supplementation (38.9 ± 40.4 vs. 17.8 ± 21.4 days, P <.01), and higher mean C-peptide levels on “critical sample” (1.4 ± 0.9 vs. 0.8 ± 0.5 ng/ml, P <.01). Their insulin levels also tended to be higher (3.5 ± 2.9 vs. 2.2 ± 3.8 μU/ml, P =.07). A stepwise logistic regression model revealed that significant predictors of prolonged HH were maximal GIRs (odds ratio (OR) 1.56, 95%; confidence interval (CI) 1.3–1.88, P <.001) and C-peptide levels (OR 3.57, 95%; CI 1.3–12.1, P =.005). Conclusion: Higher C-peptide levels and higher GIR requirements may serve as clinical tools to identify neonates with transient HH who may benefit from diazoxide treatment.What is Known:• Neonates with transient hyperinsulinism usually do not require treatment beyond glucose supplementation due to its self-limited clinical course, but some may benefit from diazoxide treatment.What is New:• Higher C-peptide levels and higher GIR requirements may serve as clinical tools to identify neonates with transient HH who may benefit from diazoxide treatment.• The incidence of prolonged neonatal HH is higher than the currently accepted figures.

Original languageEnglish
Pages (from-to)597-602
Number of pages6
JournalEuropean Journal of Pediatrics
Volume179
Issue number4
DOIs
StatePublished - 1 Apr 2020

Funding

FundersFunder number
Pearl Lilos

    Keywords

    • Diazoxide therapy
    • Neonate
    • Transient hyperinsulinism hypoglycemia

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