Correcting Hypernatremia in Children.

Area of Science:

• Pediatric Nephrology
• Clinical Neurology
• Critical Care Medicine

Background:

• Current guidelines recommend slow correction of hypernatremia in children (≤0.5 mmol/L/hr) to prevent cerebral edema.
• Limited large-scale pediatric data supports this recommendation.
• This study investigates the association between hypernatremia correction rates and outcomes in children.

Purpose of the Study:

• To evaluate the relationship between the rate of serum sodium correction and neurological outcomes in pediatric hypernatremia.
• To assess the association between correction rates and all-cause mortality in children with hypernatremia.
• To determine if rapid sodium correction impacts neurological complications or mortality.

Main Methods:

• Retrospective cohort study of 358 children with hypernatremia (serum sodium ≥150 mmol/L) from 2016-2019.
• Analysis of electronic medical records for neurological outcomes, neuroimaging, and electroencephalogram results.
• Calculation of sodium correction rates and statistical analysis of associations with neurological complications and mortality.

Main Results:

• 402 episodes of hypernatremia were analyzed; 7% of patients died.
• Rapid correction (>0.5 mmol/L/hr) in 200 children was not associated with increased neurological investigation or mortality.
• Slow correction (<0.5 mmol/L/hr) was associated with a longer hospital length of stay.

Conclusions:

• Rapid correction of pediatric hypernatremia does not appear to increase the risk of neurological complications or mortality.
• Slow correction of hypernatremia in children is associated with prolonged hospital stays.
• Findings suggest a need to re-evaluate current guidelines on the rate of hypernatremia correction in pediatric patients.