Continuous glucose monitors prove highly accurate in critically ill children

Area of Science:

• Pediatric Critical Care Medicine
• Medical Device Technology
• Clinical Chemistry

Background:

• Hyperglycemia in critically ill patients increases morbidity and mortality.
• Strict glycemic control is standard, but optimal targets and hypoglycemia risks are debated.
• Accurate real-time glucose monitoring is needed for safer, more effective management in pediatric ICUs.

Purpose of the Study:

• To determine the correlation between continuous interstitial glucose monitor values and blood glucose values in critically ill children.
• To assess the safety and efficacy of continuous glucose monitoring (CGM) in pediatric intensive care settings.

Main Methods:

• Evaluated 50 critically ill children (6 weeks to 16 years) using a commercial continuous glucose monitor (CGM).
• Compared CGM values with standard blood glucose (BG) measurements.
• Analyzed 1,555 paired measurements using Clarke error grid and Bland-Altman analysis, without altering patient management based on CGM readings.

Main Results:

• 97.9% of CGM and BG readings demonstrated clinically acceptable agreement.
• A statistically significant linear relationship was found between CGM and BG values (P < .0001).
• High clinical agreement was observed across subpopulations, including infants, patients on vasopressors, and those with hyperglycemia.

Conclusions:

• Continuous glucose monitoring (CGM) shows clinically acceptable correlation with blood glucose (BG) in critically ill children.
• Data support the use of CGM devices for identifying and managing hyperglycemia in diverse intensive care unit (ICU) settings.
• Findings challenge theoretical concerns about CGM use in vulnerable pediatric ICU populations.