<p><strong>OBJECTIVE: </strong>Continuous pulse oximetry monitoring (cSpO) in children with bronchiolitis does not improve clinical outcomes and has been associated with increased resource use and alarm fatigue. It is critical to understand the factors that contribute to cSpO overuse in order to reduce overuse and its associated harms.</p>

<p><strong>METHODS: </strong>This multicenter qualitative study took place in the context of the Eliminating Monitor Overuse (EMO) SpO study, a cross-sectional study to establish rates of cSpO in bronchiolitis. We conducted semistructured interviews, informed by the Consolidated Framework for Implementation Research, with a purposive sample of stakeholders at sites with high and low cSpO use rates to identify barriers and facilitators to addressing cSpO overuse. Interviews were audio recorded and transcribed. Analyses were conducted using an integrated approach.</p>

<p><strong>RESULTS: </strong>Participants (n = 56) included EMO study site principal investigators (n = 12), hospital administrators (n = 8), physicians (n = 15), nurses (n = 12), and respiratory therapists (n = 9) from 12 hospitals. Results suggest that leadership buy-in, clear authoritative guidelines for SpO use incorporated into electronic order sets, regular education about cSpO in bronchiolitis, and visual reminders may be needed to reduce cSpO utilization. Parental perceptions and individual clinician comfort affect cSpO practice.</p>

<p><strong>CONCLUSION: </strong>We identified barriers and facilitators to deimplementation of cSpO for stable patients with bronchiolitis across children's hospitals with high- and low-cSpO use. Based on these data, future deimplementation efforts should focus on clear protocols for cSpO, EHR changes, and education for hospital staff on bronchiolitis features and rationale for reducing cSpO.</p>