During DR mask ventilation in very preterm infants, significant airway obstruction or a large mask leak frequently occurred during the first 2 min of PPV. An RFM can help identify both causes of ...

The presence of the endotracheal tube (ETT) prevents direct visualisation of the upper airway before extubation; therefore, clinicians cannot accurately predict airway obstruction ... a constant flow ...

[7] for measurement of lung volume and airway resistance was ... forward to minimize pharyngeal obstruction. Use of an oscilloscope for direct visualization of flow and pressure tracings was ...

One such example included Fry and Hyatt’s description of the flow-volume curve (Hyatt and Black ... has been important as an indicator of upper airway obstruction (ATS/ERS 2005 criteria). However, ...

Abstract Asthma with irreversible or fixed airflow obstruction ... airway remodeling in causing persistent lung function decline in asthma with FAO. FIGURE 1. Waterflow model (Pride et al., 1967) and ...