• Shuyun Chen and Zhaohe Liu.
• Department of Clinical Nutrition.
• Medicine (Baltimore). 2020 Nov 25; 99 (48): e23307.

BackgroundThis study aimed to assess the effect of hyperglycemia on all-cause mortality in pediatric patients with brain injury, based on currently available evidence.MethodsWe systematically searched the PubMed, Embase, and Cochrane Library databases with the keywords "hyperglycemia", "brain injury", and "pediatrics". The retrieved records were screened by title, abstract, and full-text to include original articles assessing the effects of hyperglycemia on pediatric brain injury. The extracted data were assessed by a fixed-effects model. The risk of bias in the eligible studies was evaluated with the Newcastle-Ottawa Scale. Publication bias was visually examined with a funnel plot. Begg and Egger tests, respectively, were used to identify small-study effects. Sensitivity analysis was performed to evaluate the robustness of the original effect size.ResultsNine observational studies were identified from 1439 primary hits. A total of 970 pediatric patients, including 304 with hyperglycemia and brain injury, were included for meta-analysis. Hyperglycemia was strongly associated with a higher risk of all-cause mortality in pediatric patients (odds ratio = 11.60, 95% confidence interval [CI] 7.88-17.08; I = 0%). The overall quality of eligible studies was low, but the funnel plot indicated no publication bias.ConclusionsHyperglycemia is significantly associated with high all-cause mortality in pediatric patients with brain injury. However, the relationship should be confirmed by larger-scale observational studies and randomized controlled trials.

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