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Hyperglycemia after infant cardiac surgery does not adversely impact neurodevelopmental outcome

Jean A Ballweg1, Gil Wernovsky, Richard F Ittenbach

  • 1Division of Pediatric Cardiology, The Cardiac Center at The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, USA. ballweg@email.chop.edu

The Annals of Thoracic Surgery
|November 27, 2007
PubMed

Insights

Postoperative hyperglycemia is common in infants after heart surgery, but does not appear to negatively impact neurodevelopmental outcomes at one year of age. This finding is crucial for understanding infant cardiac surgery recovery.

Area of Science:

  • Pediatric Cardiology
  • Neonatal Neurology
  • Surgical Outcomes Research

Background:

  • Postoperative hyperglycemia is linked to adverse outcomes in adult cardiac surgery and traumatic brain injury.
  • The impact of hyperglycemia on neurodevelopmental outcomes in infants following cardiac surgery remains largely unstudied.

Purpose of the Study:

  • To investigate the association between postoperative hyperglycemia and neurodevelopmental outcomes in infants undergoing cardiac surgery.
  • To determine if elevated glucose levels in the early postoperative period predict poorer neurodevelopmental trajectories at one year of age.

Main Methods:

  • A secondary analysis of a prospective study involving infants (<6 months) undergoing two-ventricle defect repair.
  • Neurodevelopmental outcomes assessed at 1 year using Bayley Scales of Infant Development-II (Mental Developmental Index, Psychomotor Developmental Index).
  • Postoperative glucose levels analyzed from intensive care unit admission and the first 48 hours.

Main Results:

  • Hyperglycemia was prevalent, with 27% of patients having glucose levels >400 mg/dL.
  • No significant association was found between hyperglycemia and lower Mental Developmental Index or Psychomotor Developmental Index scores.
  • Female sex was the only variable associated with higher postoperative glucose levels.

Conclusions:

  • Hyperglycemia is a frequent occurrence in the early postoperative period for infants undergoing cardiac surgery.
  • Current findings suggest that early postoperative hyperglycemia does not adversely affect neurodevelopmental outcomes at one year of age in this population.
Abstract

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