Percutaneous Transtracheal Jet Ventilation with Various Upper Airway Obstruction

Figure 3

Relationship between upper airway resistance and expiratory tidal volume or loss of tidal volume. Significant differences in expiratory tidal volume were seen with upper airway resistance, except between 3.5 mm ID and 3 mm ID. TVe, expiratory tidal volume; LTV, loss of tidal volume.