Management of Thick Tracheostomy Tube Secretions in Head Injury Patients Using Acetylcysteine (Mucomix)
For managing thick tracheostomy tube secretions in head injury patients, acetylcysteine (Mucomix) should be administered via nebulization or direct instillation at a dose of 1-2 mL of 10-20% solution every 1-4 hours, combined with proper suctioning technique to effectively liquefy and remove secretions. 1
Acetylcysteine Administration for Tracheostomy Secretions
Dosing and Administration Methods
- For nebulization via tracheostomy, administer 1-10 mL of 20% solution or 2-20 mL of 10% solution every 2-6 hours; most patients require 3-5 mL of 20% solution or 6-10 mL of 10% solution 3-4 times daily 1
- For direct instillation into the tracheostomy, use 1-2 mL of 10-20% solution every 1-4 hours 1
- Acetylcysteine is indicated specifically for management of abnormal, viscid, or inspissated mucous secretions in tracheostomy care 1
Proper Technique for Administration
- Remove any external attachments from the tracheostomy tube before administration 2
- If present, remove inner cannula before administration and clean it thoroughly 2
- After administration, ensure proper suctioning to remove liquefied secretions 2
- Monitor for increased volume of liquefied secretions following administration, as this is an expected effect 1
Suctioning Technique for Secretion Management
Proper Suctioning Protocol
- Assess the need for suctioning regularly in patients with thick secretions 2
- Use pre-marked catheters and twirl the catheter between fingertips during suctioning 2
- Ensure the suction catheter passes easily beyond the tracheostomy tube tip and into the trachea 2
- Avoid using rigid devices like bougies to assess tube patency as they may create false passages 2
- Suction to the pre-determined depth as indicated on the bedhead sign 2
Equipment Considerations
- Ensure a functional suctioning system is always available at the bedside 3
- Clean suction equipment thoroughly after each use to prevent contamination 2
- Consider using disposable inner cannulas in patients with thick secretions to reduce tube blockage risk 2
Managing Complications and Special Considerations
Monitoring for Complications
- Watch for signs of bronchospasm after acetylcysteine administration, especially in patients with reactive airways 1
- If bronchospasm occurs, discontinue the medication immediately and administer a bronchodilator via nebulization 1
- Monitor for adequate humidification as this is crucial for preventing thick secretions 2
Head Injury-Specific Considerations
- Patients with severe head injury often require prolonged mechanical ventilation and are at higher risk for secretion-related complications 4
- COVID-19 patients and those with neurological injuries often have unusually thick and tenacious secretions that predispose to tracheostomy tube occlusions 2
- The presence of spontaneous cough affects secretion clearance and decannulation success in patients with severe acquired brain injury 5
Prevention of Secretion-Related Complications
Humidification
- Ensure proper humidification to prevent thickening of secretions 2
- Use Heat Moisture Exchanger (HME) devices rather than open flow humidified air systems when possible 2
- If HME is unavailable and there is high risk of mucus plugging, saline drops may be instilled through the inline suction port 2
Emergency Management of Obstruction
- If obstruction occurs despite preventive measures, immediately remove any external attachments and inner cannula 2
- Attempt suctioning to clear the obstruction 2
- If suctioning fails to clear the obstruction, an emergency tracheostomy tube change may be necessary 2
- Consider using acetylcysteine nebulizers in addition to saline to adequately soften stubborn mucous plugs 6
Skin and Stoma Care
- Keep the skin around the stoma clean and dry to prevent infection which can worsen secretion management 2
- Regular daily cleansing with soap and water is recommended 2
- Avoid petroleum-based products around the stoma 2
- Inspect the peristomal area and neck skin daily for signs of infection or pressure necrosis 2
By following these guidelines, thick tracheostomy tube secretions in head injury patients can be effectively managed using acetylcysteine (Mucomix), proper suctioning techniques, and appropriate preventive measures to maintain airway patency and prevent complications.