Cuffed Tracheostomy Tubes and Aspiration Prevention

Key Principles

The American Thoracic Society identifies chronic translaryngeal aspiration as a specific indication for using cuffed tubes, not as something the cuff prevents, in patients with tracheostomy tubes 1, 2
Cuffed tubes are indicated primarily for mechanical ventilation with positive pressures and for patients requiring only nocturnal ventilation, not for aspiration prevention, according to the American Thoracic Society 1, 2

If the patient requires positive-pressure ventilation or high pressures, the cuff must remain inflated and the patient should remain NPO, as recommended by the American Journal of Respiratory and Critical Care Medicine 1, 2
If the patient is weaned from mechanical ventilation and breathing spontaneously, a formal dysphagia screening should be conducted, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 3
For patients at low risk for dysphagia, blue dye testing may be considered as an alternative to more invasive assessments, according to the American Academy of Otolaryngology-Head and Neck Surgery 3
For high-risk patients, flexible endoscopic evaluation of swallowing (FEES) or videofluoroscopic swallow study (VFSS) may be necessary, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 3

The American Academy of Otolaryngology-Head and Neck Surgery recommends that cuff deflation should only occur when the patient is considered low risk for requiring mechanical ventilation 3
Cuff pressure must be maintained between 20-30 cmH₂O when inflated to prevent tracheal injury while maintaining adequate seal, as suggested by the American Academy of Otolaryngology-Head and Neck Surgery 3, 2
For patients requiring nocturnal ventilation only, the cuff can be inflated at night and deflated during the day to allow speech and oral intake, according to the American Journal of Respiratory and Critical Care Medicine 1, 2, 4

Bedside assessment of laryngeal function should rely initially on clinical skills, with endoscopy reserved for cases where upper airway pathology is suspected, as recommended by the Anaesthesia journal 5