- Prolonged mechanical ventilation (> 10 days)
Benefits compared with intubation:
- No injury of the arytenoid cartilages
- Prevention of mucosal lesions (nose/mouth, vocal cords, trachea)
- Less airway resistance (decreased ventilatory effort)
- Less dead space
- Better fixation
- Easier oral care
- Less analgesics/sedatives required
- Better patient comfort
- Easier weaning