Optimizing High-Flow Nasal Cannula Weaning in Patients With Bronchiolitis.

Area of Science:

• Pediatric critical care
• Respiratory medicine
• Clinical pathway optimization

Background:

• Significant variability exists in published high-flow nasal cannula (HFNC) weaning strategies for pediatric bronchiolitis.
• Standardized protocols are needed to optimize patient care and resource utilization.
• Existing approaches may lead to prolonged HFNC use and hospital length of stay (LOS).

Purpose of the Study:

• To evaluate the impact of modifying the weaning arm of an HFNC pathway on HFNC duration and hospital LOS.
• To achieve a target reduction of 20% in both HFNC duration and hospital LOS.
• To assess the safety of an optimized HFNC weaning strategy by monitoring the need for noninvasive ventilation (NIV).

Main Methods:

• A retrospective study involving pediatric patients (<24 months) diagnosed with bronchiolitis admitted to intermediate care and intensive care units.
• HFNC pathway modifications were iteratively implemented across three intervention phases (PDSA cycles).
• The final optimized strategy recommended a 1 L/kg/min flow reduction attempt every 4 hours.

Main Results:

• A total of 642 children were included in the study.
• Average HFNC duration decreased from 35.9 hours (baseline) to 22.6 hours (PDSA 3), meeting special cause variation criteria.
• Hospital LOS also decreased significantly from 101.7 hours to 76.5 hours, with no increase in NIV requirement.

Conclusions:

• Optimizing the HFNC weaning strategy significantly shortened HFNC duration and hospital LOS in pediatric patients with bronchiolitis.
• An aggressive weaning approach (1 L/kg/min every 4 hours) was effective in reducing treatment duration.
• The optimized strategy successfully reduced HFNC duration and LOS without increasing the need for noninvasive ventilation.