New strategies to Reduce Unnecessary Antibiotic Use in the NICU: A Quality Improvement Initiative

Improving Antibiotic Use in Argentine Pediatric Hospitals: A Process Evaluation Using Normalization Process Theory

Introduction

In the pediatric setting, overprescribing of antibiotics contributes to the rise of multidrug-resistant organisms. Antimicrobial stewardship programs (ASPs) are recommended to optimize antibiotic use and combat resistance. However, the implementation of ASPs in low- and middle-income countries faces several challenges. This study aimed to evaluate the implementation process of a multifaceted ASP in 2 pediatric hospitals in Argentina.

Methods

A qualitative study was conducted in two large public children's hospitals in Argentina, using semistructured interviews with 32 healthcare providers at the beginning and end of the ASP implementation. The study was guided by the normalization process theory.

Results

The intervention faced challenges, including limited understanding of its objectives, confusion with existing practices, and insufficient commitment from senior staff. Although junior staff were more receptive, communication barriers with external staff and workload concerns hindered broader adoption. Infectious disease specialists primarily led implementation, with limited involvement of other staff, particularly in training activities. Despite these challenges, participants reported improvements, such as the development of standardized antibiotic guidelines, better interdisciplinary collaboration, and improved communication. However, organizational support and resistance to new practices remained barriers.

Conclusions

This study highlights the importance of organizational context and staff commitment in ASP implementation. Tailored strategies that address the specific challenges of low- and middle-income countries are needed to effectively implement ASPs.

Antimicrobial Stewardship and Improved Antibiotic Utilization in the Pediatric Cardiac Intensive Care Unit

Background

We developed a multidisciplinary antimicrobial stewardship team to optimize antimicrobial use within the Pediatric Cardiac Intensive Care Unit. A quality improvement initiative was conducted to decrease unnecessary broad-spectrum antibiotic use by 20%, with sustained change over 12 months.

Methods

We conducted this quality improvement initiative within a quaternary care center. PDSA cycles focused on antibiotic overuse, provider education, and practice standardization. The primary outcome measure was days of therapy (DOT)/1000 patient days. Process measures included electronic medical record order-set use. Balancing measures focused on alternative antibiotic use, overall mortality, and sepsis-related mortality. Data were analyzed using statistical process control charts.

Results

A significant and sustained decrease in DOT was observed for vancomycin and meropenem. Vancomycin use decreased from a baseline of 198 DOT to 137 DOT, a 31% reduction. Meropenem use decreased from 103 DOT to 34 DOT, a 67% reduction. These changes were sustained over 24 months. The collective use of gram-negative antibiotics, including meropenem, cefepime, and piperacillin-tazobactam, decreased from a baseline of 323 DOT to 239 DOT, a reduction of 26%. There was no reciprocal increase in cefepime or piperacillin-tazobactam use. Key interventions involved electronic medical record changes, including automatic stop times and empiric antibiotic standardization. All-cause mortality remained unchanged.

Conclusions

The initiation of a dedicated antimicrobial stewardship initiative resulted in a sustained reduction in meropenem and vancomycin usage. Interventions did not lead to increased utilization of alternative broad-spectrum antimicrobials or increased mortality. Future interventions will target additional broad-spectrum antimicrobials.