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Diabetes Management Strategies in Intensive Care Settings.

Jan Gunst1, Rodolfo J Galindo2, Guillermo E Umpierrez3

  • 1Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, KU Leuven, Herestraat 49, Leuven, Belgium; Department of Intensive Care Medicine, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium.

The Medical Clinics of North America
|April 26, 2026
PubMed
Summary
This summary is machine-generated.

Tight glucose control (TGC) benefits critically ill patients, but results depend on nutrition and accurate glucose monitoring. Avoiding severe hyperglycemia and hypoglycemia is crucial for patient outcomes.

Keywords:
Blood glucoseCritical illnessDiabetesHyperglycemiaHypoglycemiaInsulinIntensive careParenteral nutrition

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Area of Science:

  • Intensive Care Medicine
  • Endocrinology
  • Metabolic Disorders

Background:

  • Hyperglycemia is common in critically ill patients, increasing morbidity and mortality.
  • Previous studies on tight glucose control (TGC) yielded context-dependent results.

Purpose of the Study:

  • To evaluate the efficacy and safety of tight glucose control (TGC) in critically ill patients.
  • To identify factors influencing the benefits and risks of TGC.

Main Methods:

  • Analysis of randomized controlled trials (RCTs) on glucose control strategies.
  • Comparison of TGC outcomes based on nutritional support (parenteral nutrition) and glucose monitoring accuracy.
  • Assessment of adverse events, including hypoglycemia and glucose variability.

Main Results:

  • TGC reduced morbidity and mortality in patients receiving early parenteral nutrition with accurate glucose monitoring and no insulin boluses.
  • Benefits were less significant in patients not receiving early parenteral nutrition due to less severe hyperglycemia.
  • TGC protocols with inaccurate measurements and insulin boluses led to harm, including severe hypoglycemia and glucose variability.

Conclusions:

  • The benefits of tight glucose control (TGC) in critically ill patients are highly context-dependent.
  • Accurate glucose monitoring and avoidance of insulin boluses are critical for safe and effective TGC.
  • Preventing severe hyperglycemia and hypoglycemia is essential for improving patient outcomes.