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Postoperative hyperglycemia is associated with mediastinitis following pediatric cardiac surgery

A Fawad Ghafoori1, Mark D Twite, Robert H Friesen

  • 1Department of Anesthesiology, The Children's Hospital, University of Colorado School of Medicine, Denver, CO 80045, USA.

Paediatric Anaesthesia
|December 17, 2008
PubMed

Insights

Postoperative hyperglycemia is a risk factor for mediastinitis in pediatric cardiac surgery patients. Elevated blood glucose levels in the first 24 hours predict mediastinitis development.

Area of Science:

  • Pediatric Cardiac Surgery
  • Infectious Complications
  • Metabolic Disorders

Background:

  • Mediastinitis is a rare but serious complication following median sternotomy.
  • Perioperative hyperglycemia is linked to increased morbidity and infection risk in cardiac surgery patients.
  • This study investigates the relationship between blood glucose levels and mediastinitis in pediatric cardiac surgery.

Purpose of the Study:

  • To determine if perioperative blood glucose levels are higher in pediatric patients who develop mediastinitis after cardiac surgery.
  • To identify postoperative hyperglycemia as a potential risk factor for poststernotomy mediastinitis.

Main Methods:

  • Retrospective review of medical records for pediatric patients (n=24) with poststernotomy mediastinitis and a matched control group (n=32).
  • Data collected included postoperative blood glucose levels, surgical details, and perioperative support.
  • Statistical analysis involved t-tests, chi-square tests, and multivariate logistic regression.

Main Results:

  • Postoperative blood glucose levels were initially similar between groups.
  • A higher proportion of patients in the mediastinitis group had peak blood glucose levels >7.2 mM (>130 mg/dL) within 24 hours (P=0.07).
  • Elevated 24-hour peak blood glucose (>7.2 mM) was a significant multivariate predictor of mediastinitis (P=0.039).

Conclusions:

  • Postoperative hyperglycemia is a significant risk factor for developing mediastinitis in infants and children after cardiac surgery.
  • Monitoring and managing blood glucose levels in the early postoperative period may help prevent mediastinitis.
Abstract

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