SUBSUS (SUBglottic Secretion at Ultrasound Score)

Prospective Study On Novel Usage of Airway Ultrasound To Detect Subglottic Secretion Above Endotracheal Tube(ETT) Cuff

To compare the performance of ultrasound in detecting subglottic secretion above the ETT tube cuff in comparison to computed tomography (CT) scan.

Airway ultrasound will be performed at the bedside prior to CT scan in all intubated patients who fulfiled the criteria. The image of subglottic secretion was then compared to the plain CT cervical. The findings of the CT was examined by a radiologist.

Inclusion Criteria:

• age more than 18 years old
• ETT in situ
• indicated for CT cervical scan

Exclusion Criteria:

• neck subcutaneous emphysema
• neck scar or surgical dressing around the neck which can lead to difficulty in obtaining an optimal ultrasound image.