Peak Tidal Inspiratory Flow in Infants With Moderate to Severe Acute Viral Bronchiolitis

"In patients with bronchiolitis sverity mWCAS / 3-5 :~Nasopharyngeal aspiration and comfortable placement of the infant upon admission; Clinical evaluation: respiratory rate, respiratory distress scores rating (Silverman and m-WCAS); If the patient is eligible: information and collection of parental consent; If signed parental consent obtained: progressive (on at least 10 min) withdrawal of HFNC support and maintenance if necessary of conventional oxygen therapy (maximum 1 L/min); Application of the spirometer for the recording of 20 consecutive spontaneous respiratory cycles for PTIF measurements; Respiratory support with HFNC; flow adapted to the need of the patients (equal to the measured PTIF)."