Standardization of post-operative antimicrobials reduced exposure while maintaining good outcomes in pediatric liver

Laura L Bio1, Hayden T Schwenk1,2, Sharon F Chen1,2

  • 1Lucile Packard Children's Hospital Stanford, Stanford, CA, USA.

Insights

A new standardized approach significantly reduced antibiotic use after pediatric liver transplants. This strategy lowered exposure to broad-spectrum antibiotics and vancomycin without negatively impacting patient outcomes or increasing infections.

Area of Science:

  • Transplantation Medicine
  • Infectious Disease Prevention
  • Pediatric Surgery

Background:

  • Infections post-orthotopic liver transplant (OLT) contribute to significant morbidity and mortality.
  • Optimizing antimicrobial prophylaxis is crucial to balance infection prevention with the risks of antibiotic overuse.
  • Current guidelines for pediatric OLT antimicrobial prophylaxis are lacking, necessitating standardized protocols.

Purpose of the Study:

  • To develop and evaluate a standardized post-operative antimicrobial therapy protocol for pediatric orthotopic liver transplant recipients.
  • To reduce overall antimicrobial utilization and associated adverse outcomes.
  • To assess the impact of the standardized protocol on clinical outcomes in a large pediatric liver transplant center.

Main Methods:

  • A pre-post intervention study design was employed, comparing two cohorts of pediatric OLT recipients.
  • The intervention involved a standardized post-operative antimicrobial regimen: 48 hours of antibiotics, restricted vancomycin use for early fever, and selective caspofungin use.
  • Data on antimicrobial utilization and clinical outcomes were collected and compared between the pre-intervention and post-intervention groups.

Main Results:

  • The standardized protocol significantly reduced the proportion of patients receiving broad-spectrum gram-negative antibiotics for over 48 hours (76% vs 44%, P=.01).
  • Post-operative vancomycin use decreased dramatically from 50% in the pre-intervention group to 7.4% in the post-intervention group (P<.001).
  • No significant differences were observed in post-operative fever, positive cultures, massive transfusion rates, or hospital length of stay between the groups.

Conclusions:

  • Implementation of a standardized post-operative antimicrobial prophylaxis protocol effectively reduced antimicrobial exposure in pediatric OLT recipients.
  • The standardized approach achieved significant reductions in broad-spectrum antibiotic and vancomycin use without compromising patient safety or clinical outcomes.
  • This strategy offers a viable model for optimizing antimicrobial stewardship in pediatric liver transplantation.

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