Early Versus Late Sternal Closure in Infants-Perioperative Associations and Outcomes

Ahmed Asfari1, Matthew G Clark1, Kristal M Hock1

  • 1Department of Pediatric Cardiac Critical Care Medicine, University of Alabama at Birmingham, AL, USA.

Insights

Delayed sternal closure (DSC) in neonates and infants undergoing heart surgery did not impact mortality but prolonged intensive care and hospital stays. Early DSC (<48 hours) is associated with better resource utilization compared to late DSC (>48 hours).

Area of Science:

  • Pediatric Cardiac Surgery
  • Thoracic Surgery Outcomes
  • Neonatal and Infant Critical Care

Background:

  • Delayed sternal closure (DSC) is utilized in pediatric cardiac surgery patients experiencing bleeding, edema, or arrhythmias post-cardiopulmonary bypass.
  • The optimal timing for DSC is influenced by various clinical and laboratory factors, necessitating further investigation.

Purpose of the Study:

  • To compare outcomes between early (<48 hours) and late (>=48 hours) DSC in neonates and infants following heart surgery.
  • To identify clinical and laboratory variables associated with the timing of DSC in this pediatric population.

Main Methods:

  • A retrospective chart review was conducted on neonates and infants (<1 year old) who underwent DSC after heart surgery between December 2012 and December 2018.
  • Patients requiring extracorporeal membrane oxygenation (ECMO) were excluded from the analysis.

Main Results:

  • Of 121 patients, 34% required late DSC. While overall survival was 75%, late DSC patients had significantly longer intensive care unit (24.3 vs 36.8 days) and hospital stays (2-fold increase).
  • Late DSC was associated with higher intraoperative and postoperative lactate levels and increased vasoactive inotrope scores at 36 hours.
  • No significant difference in mortality rates was observed between early and late DSC groups.

Conclusions:

  • While not affecting mortality, late DSC in neonates and infants is linked to prolonged resource utilization.
  • Further research is warranted to identify specific clinical and laboratory markers to guide optimal DSC timing decisions.
Abstract