The temporal relationship between glucose-corrected serum sodium and neurological status in severe diabetic

Andrew Durward1, Lee P Ferguson, Dan Taylor

  • 1Evelina Children's Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK.

Insights

Diabetic ketoacidosis (DKA) can cause cerebral edema. Monitoring glucose-corrected serum sodium levels may provide an early warning for developing cerebral edema in children with DKA.

Area of Science:

  • Pediatric Endocrinology
  • Neurology
  • Metabolic Disorders

Background:

  • Cerebral edema is a serious complication of diabetic ketoacidosis (DKA).
  • The exact relationship between fluid/electrolyte shifts and cerebral edema during DKA treatment remains unclear.
  • Understanding these dynamics is crucial for preventing severe neurological outcomes in children with DKA.

Purpose of the Study:

  • To investigate the temporal relationship between osmolar and acid-base changes and the development of cerebral edema in children undergoing DKA treatment.
  • To identify potential early warning markers for cerebral edema in pediatric DKA patients.

Main Methods:

  • Retrospective cohort study of 53 children with severe DKA.
  • Cerebral edema diagnosis based on neurological status, response to osmotherapy, and neuroimaging.
  • Analysis of temporal profiles of osmolar and acid-base parameters using a mixed-effects model, adjusted for risk factors.

Main Results:

  • No significant differences in initial demographic, osmolar, or acid-base variables among groups.
  • Distinct temporal trajectories for effective osmolality and glucose-corrected serum sodium in children who developed late-onset cerebral edema.
  • Glucose-corrected serum sodium showed a decrease in the late-onset edema group and an increase in controls, correlating with edema onset.

Conclusions:

  • Glucose-corrected serum sodium levels may serve as a valuable early indicator for predicting cerebral edema in DKA.
  • Temporal monitoring of glucose-corrected sodium is recommended for children with severe DKA.
  • Further research is warranted to validate these findings and optimize DKA management protocols.
Abstract

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