Tracheostomy Tube Selection for ALS Patients

Primary Indications for Cuffed Tubes in ALS

ALS patients requiring mechanical ventilation or having aspiration risk should use a cuffed tracheostomy tube, with high-volume/low-pressure cuffs being the preferred design, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1
Cuffed tubes are essential for patients requiring ventilation with positive pressures, which is common in advanced ALS as respiratory muscle failure progresses 1
Many ALS patients require ventilation only at night, making cuffed tubes ideal as the cuff can be inflated during nocturnal ventilation and deflated during the day to allow speech and breathing around the tube 2
Chronic translaryngeal aspiration, which occurs in ALS patients with bulbar dysfunction, is a specific indication for cuffed tubes 1

High-volume/low-pressure cuffs are strongly preferred over low-volume/high-pressure cuffs to minimize tracheal wall damage and preserve airway epithelium perfusion, according to the American Academy of Otolaryngology-Head and Neck Surgery 1
Cuff pressure must be maintained between 20-30 cmH₂O for air-filled cuffs to prevent both tidal volume loss and tracheal injury, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 3, 4
Hyperinflation of cuffs to eliminate air leaks should be avoided, as it significantly increases the risk of tracheal injury, according to the American Academy of Otolaryngology-Head and Neck Surgery 3

During mechanical ventilation, the cuff should be kept inflated with pressure maintained at 20-30 cmH₂O, checking pressure regularly with manometry, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 3, 4
During ventilator weaning, the cuff should be maintained inflated throughout the weaning process from assisted to pressure-support mode, according to the American Academy of Otolaryngology-Head and Neck Surgery 3
After successful weaning, the cuff may be deflated or the tube changed to a cuffless design, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 3
For speech facilitation, one-way speaking valves or capping can be considered only after the patient tolerates cuff deflation or transition to a cuffless tube, according to the American Academy of Otolaryngology-Head and Neck Surgery 3, 2

Inner cannula: Dual-cannula tubes allow cleaning without changing the entire tube, beneficial for patients with thick secretions, as recommended by the American Academy of Otolaryngology-Head and Neck Surgery 1
Proper sizing: Select tube length extending at least 2 cm beyond the stoma while remaining 1-2 cm above the carina, with diameter avoiding tracheal wall damage, according to the American Academy of Otolaryngology-Head and Neck Surgery 1