Insulin resistance in critical illness: Consequences for nutrition therapy and glucose management

Jan Gunst*, Sascha C. Verbruggen

*Corresponding author for this work

Research output: Contribution to journalReview articleAcademicpeer-review

7 Citations (Scopus)

Abstract

Purpose of review: Critically ill patients usually develop insulin resistance and hyperglycemia, which is aggravated by early parenteral nutrition. In observational studies, the lowest mortality risk associates with glucose concentrations close to the antecedent average glucose level. This review summarizes the most recent evidence regarding glucose control in critical illness.

Recent findings: Although pioneer randomized controlled trials showed morbidity and mortality benefit by normalizing blood glucose in intensive care, the largest multicenter randomized controlled trial found increased mortality. Differences in glucose targets, the accuracy of the glucose control protocol, and differences in feeding strategy may explain these differences.Recent randomized controlled trials investigating the impact of individualized glucose control did not show benefits of targeting individualized or looser glucose values in critically ill patients with poorly controlled diabetes.

Summary: It remains unclear whether tight glucose control in critical illness is beneficial or not in the absence of early parenteral nutrition, which is currently being studied in the multicenter TGC-fast randomized controlled trial. Without new evidence, it seems prudent to avoid severe hyperglycemia and hypoglycemia in all patients.

Original languageEnglish
Pages (from-to)286-292
Number of pages7
JournalCurrent Opinion in Critical Care
Volume29
Issue number4
DOIs
Publication statusPublished - 1 Aug 2023

Bibliographical note

Financial support and sponsorship:
J.G. receives a postdoctoral research grant by the Clinical Research and Education Council by the University Hospitals Leuven, a Fundamental Research Award by the European Society of Intensive Care Medicine, and T.B.M. funding by the Research Foundation-Flanders (T003617N).

Publisher Copyright:
© 2023 Lippincott Williams and Wilkins. All rights reserved.

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