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Hyperglycemia after pediatric cardiac surgery: impact of age and residual lesions

Michael-Alice Moga1, Cedric Manlhiot, Eva M Marwali

  • 1Division of Cardiac Critical Care Medicine, Department of Pediatrics, The Labatt Family Heart Center, The Hospital for Sick Children, University of Toronto School of Medicine, Toronto, Ontario, Canada.

Critical Care Medicine
|November 9, 2010
PubMed

Insights

Hyperglycemia after pediatric cardiac surgery is common and linked to adverse outcomes. However, patient age and cardiac lesions can alter this risk, suggesting targeted insulin therapy may be beneficial.

Area of Science:

  • Pediatric Critical Care Medicine
  • Cardiovascular Surgery
  • Metabolic Disorders

Background:

  • Hyperglycemia is a frequent complication in children post-cardiac surgery.
  • Understanding factors influencing hyperglycemia and its outcomes is crucial for patient management.

Purpose of the Study:

  • To evaluate how patient age and residual cardiac lesions affect the link between hyperglycemia and adverse outcomes.
  • To identify the incidence, severity, and duration of hyperglycemia in this population.
  • To determine perioperative factors associated with hyperglycemia.

Main Methods:

  • Retrospective, observational cohort study of 772 children undergoing cardiac surgery with cardiopulmonary bypass.
  • Analysis of postoperative glucose levels and composite morbidity-mortality outcomes.
  • Inclusion criteria focused on specific patient and surgical characteristics.

Main Results:

  • Hyperglycemia occurred in 90% of patients, typically resolving within 72 hours.
  • Factors like mechanical ventilation, cyanosis, surgical complexity, and steroid use increased hyperglycemia risk.
  • Adverse outcomes were associated with longer durations of mild, moderate, or severe hyperglycemia.
  • Neonates tolerated longer hyperglycemia periods; significant residual cardiac lesions attenuated the association between mild/moderate hyperglycemia and adverse outcomes.

Conclusions:

  • Patient age and residual cardiac lesions significantly modify the impact of hyperglycemia on outcomes after pediatric cardiac surgery.
  • Insulin therapy should be carefully considered and targeted towards high-risk patient subgroups.
Abstract

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