This qualitative study aimed to understand facilitators and barriers to implementation of interventions to improve guideline-concordant antibiotic duration prescribing for pediatric acute otitis media (AOM).

Clinicians and clinic administrators participated in semi-structured qualitative interviews, and parents of children 2 years of age or older with a recent diagnosis of AOM participated in focus groups. The Practical Robust Implementation and Sustainability Model (PRISM) guided the study. Interviews were analyzed using the Rapid Assessment Process.

Denver Health and Hospital Authority (Denver, CO) led the study. Recruitment occurred at Vanderbilt University Medical Center (Nashville, TN) and Washington University in St. Louis Medical Center (St. Louis, MO).

Purposeful sampling was used to recruit clinicians and administrators for qualitative interviews. Convenience sampling was used to recruit parents for focus groups.

Thirty-one participants (15 clinicians, 4 administrators, and 12 parents) engaged in interviews and focus groups. Factors influencing antibiotic prescribing included patient history, years of practice, familiarity with the patient, concerns with patient medication adherence, and practice type. Clinicians endorsed electronic health record modifications and clinician prescribing feedback as methods to improve patient care and reduce the durations of prescribed antibiotics. Suggestions for intervention optimization and education needs were also obtained.

Findings suggest that clinicians and administrators support reducing prescribed antibiotic durations for AOM and are receptive to the proposed interventions. More education is needed to increase parent awareness about antibiotic stewardship and AOM treatment options.

RELAX: Reducing Length of Antibiotics for Children with Ear Infections (RELAX), NCT05608993, https://clinicaltrials.gov/study/NCT05608993.

Acute otitis media (AOM) is the most common indication for antibiotics in children. The associated organism can influence the likelihood of antibiotic benefit and optimal treatment. Nasopharyngeal polymerase chain reaction can effectively exclude the presence of organisms in middle-ear fluid. We explored the potential cost-effectiveness and reduction in antibiotics with nasopharyngeal rapid diagnostic testing (RDT) to direct AOM management.

We developed 2 algorithms for AOM management based on nasopharyngeal bacterial otopathogens. The algorithms provide recommendations on prescribing strategy (ie, immediate, delayed, or observation) and antimicrobial agent. The primary outcome was the incremental cost-effectiveness ratio (ICER) expressed as cost per quality-adjusted life day (QALD) gained. We used a decision-analytic model to evaluate the cost-effectiveness of the RDT algorithms compared to usual care from a societal perspective and the potential reduction in annual antibiotics used.

An RDT algorithm that used immediate prescribing, delayed prescribing, and observation based on pathogen (RDT-DP) had an ICER of $1,336.15 per QALD compared with usual care. At an RDT cost of $278.56, the ICER for RDT-DP exceeded the willingness to pay threshold; however, if the RDT cost was <$212.10, the ICER was below the threshold. The use of RDT was estimated to reduced annual antibiotic use, including broad-spectrum antimicrobial use, by 55.7% ($4.7 million for RDT vs $10.5 million for usual care).

The use of a nasopharyngeal RDT for AOM could be cost-effective and substantially reduce unnecessary antibiotic use. These iterative algorithms could be modified to guide management of AOM as pathogen epidemiology and resistance evolve.