Reducing MRSA Infection in a New NICU During the COVID-19 Pandemic.

BACKGROUND AND OBJECTIVES: Methicillin-resistant Staphylococcus aureus (MRSA) is prevalent in most NICUs, with a high rate of skin colonization and subsequent invasive infections among hospitalized neonates. The effectiveness of interventions designed to reduce MRSA infection in the NICU during the coronavirus disease 2019 (COVID-19) pandemic has not been characterized. METHODS: Using the Institute for Healthcare Improvement's Model for Improvement, we implemented several process-based infection prevention strategies to reduce invasive MRSA infections at our level IV NICU over 24 months. The outcome measure of invasive MRSA infections was tracked monthly utilizing control charts. Process measures focused on environmental disinfection and hospital personnel hygiene were also tracked monthly. The COVID-19 pandemic was an unexpected variable during the implementation of our project. The pandemic led to restricted visitation and heightened staff awareness of the importance of hand hygiene and proper use of personal protective equipment, as well as supply chain shortages, which may have influenced our outcome measure. RESULTS: Invasive MRSA infections were reduced from 0.131 to 0 per 1000 patient days during the initiative. This positive shift was sustained for 30 months, along with a delayed decrease in MRSA colonization rates. Several policy and practice changes regarding personnel hygiene and environmental cleaning likely contributed to this reduction. CONCLUSIONS: Implementation of a multidisciplinary quality improvement initiative aimed at infection prevention strategies led to a significant decrease in invasive MRSA infections in the setting of the COVID-19 pandemic.

Gastrointestinal Zygomycosis in a Preterm Neonate Associated With Contaminated Probiotics.

A neonate of 29 weeks' gestation who received probiotics developed clinical signs suggesting surgical necrotizing enterocolitis. A specimen of resected ileum revealed fungal forms within the bowel wall. Rhizopus oryzae was detected via DNA sequencing from probiotic powder and tissue specimens from the infant. To our knowledge, this is the first report linking gastrointestinal zygomycosis to the administration of contaminated probiotics.

A Cluster of Cases of Babesia microti Among Neonates Traced to a Single Unit of Donor Blood.

Three premature infants in 1 neonatal intensive care unit developed transfusion-transmitted babesiosis. Two of the infants developed high-grade parasitemia. All 3 affected infants were treated and cured with azithromycin and atovaquone. No infant required exchange transfusion. Clinicians should be cognizant that babesiosis may be acquired via blood transfusion.

Implementation of an Antimicrobial Stewardship Program in a Neonatal Intensive Care Unit.

OBJECTIVE To evaluate antimicrobial utilization and prescription practices in a neonatal intensive care unit (NICU) after implementation of an antimicrobial stewardship program (ASP). DESIGN Quasi-experimental, interrupted time-series study. SETTING A 54-bed, level IV NICU in a regional academic and tertiary referral center. PATIENTS AND PARTICIPANTS All neonates prescribed antimicrobials from January 1, 2011, to June 30, 2016, were eligible for inclusion. INTERVENTION Implementation of a NICU-specific ASP beginning July 2012. METHODS We convened a multidisciplinary team and developed guidelines for common infections, with a focus on prescriber audit and feedback. We conducted an interrupted time-series analysis to evaluate the effects of our ASP. Our primary outcome measure was days of antibiotic therapy (DOT) per 1,000 patient days for all and for select antimicrobials. Secondary outcomes included provider-specific antimicrobial prescription events for suspected late-onset sepsis (blood or cerebrospinal fluid infection at >72 hours of life) and guideline compliance. RESULTS Antibiotic utilization decreased by 14.7 DOT per 1,000 patient days during the stewardship period, although this decrease was not statistically significant (P=.669). Use of ampicillin, the most commonly antimicrobial prescribed in our NICU, decreased significantly, declining by 22.5 DOT per 1,000 patient days (P=.037). Late-onset sepsis evaluation and prescription events per 100 NICU days of clinical service decreased significantly (P<.0001), with an average reduction of 2.65 evaluations per year per provider. Clinical guidelines were adhered to 98.75% of the time. CONCLUSIONS Implementation of a NICU-specific antimicrobial stewardship program is feasible and can improve antibiotic prescribing practices. Infect Control Hosp Epidemiol 2017;38:1137-1143.