Pediatric Infectious Disease

Urinary tract infections (UTI) are commonly encountered in children, with 7% diagnosed with at least one UTI by the age of 19 years. The evidence for treatment of uncomplicated UTI is clear; oral antibiotics are as good as intravenous (IV) antibiotics, usually for a total of 7 days. Complicated UTIs (cUTIs) on the other hand, are common reasons for hospital admissions for IV antibiotics and constitute a major burden for healthcare systems. There is considerable variation in care for children who present with UTI and have complicating features such as vomiting, dehydration, urological abnormalities or have a previous history of UTI. Australian and international guidelines lack clear, evidence-based recommendations to guide treatment in this group. Without gold standard evidence, these children will continue to receive unnecessary IV antibiotics, longer hospital stays and poorer health outcomes. This multicentre, non-inferiority randomised trial will investigate if One dose - single dose of IV followed by 2 days oral antibiotics is as non-inferior to Three doses for children with UTI and co-existing complicating factors presenting to the Emergency Department (ED). In other words, this study will compare if a single dose of IV antibiotics plus two days oral antibiotics is as clinically effective as 3 doses antibiotics in resolving UTI symptoms at 72 hours after the first dose of IV antibiotics, for complicated UTIs in children presenting to the ED. All participants will receive a total of 7 days of antibiotics for the complicated urinary tract infection. If 1 dose IV and 2 days oral antibiotics is found to be as good as 3 days, the duration of IV antibiotics for complicated UTI can be reduced along with avoidance of the inherent risks of unnecessary hospital admission by administering a single IV dose in an outpatient/ED setting. On the other hand if a single IV dose results in prolonged symptoms or treatment failure, this will inform practice for the proportion of children who have a single dose of IV antibiotics in the ED and are sent home on oral antibiotics. Regardless of the outcome, this trial will inform clinical practice for complicated UTI to improve health outcomes for this group.

This study aims to improve care and reduce unnecessary antibiotic prescribing for children with ear infections. The study will compare the effectiveness of a "gold standard" to a hybrid intervention combined with this gold standard, in order to identify steps to increase parent satisfaction for child ear infection care. The "gold standard" approach is a Health System Level Intervention. On its own, it involves clinician education, tools in electronic medical records, and audit and feedback reports for clinician prescribing habits. The hybrid intervention includes the elements of the health systems level intervention in addition to a Shared Decision-Making component, which allows for both an increase in the role parents play in their child's care, as well as clinician education for how to use this method. The goals of this work are to increase parent satisfaction, reduce antibiotics taken for childhood ear infections, align medical care with the current national guidelines, and evaluate differences in the two intervention groups. Both groups will be evaluated for implementation outcomes to improve dissemination and scalability for future use of these models in antibiotic prescribing for children with ear infections. This study will recruit a diverse group of patients and clinicians to complete surveys, parents to participate in focus groups, and clinicians and administrators to be interviewed in order to meet study aims and receive sufficient feedback on the interventions performed. There are two hypotheses for this research: 1. The Hybrid Intervention will have higher parent satisfaction and reduced antibiotic use compared to the Health-System Level Intervention and 2. The Hybrid Intervention will be more challenging to implement than the Health-System Level Intervention, but will be preferred by parents, clinicians, and administrators.