[Application of high-flow humidified oxygen therapy in patients with tracheotomy and non-mechanical ventilation].

OBJECTIVE: To observe the effect of tracheotomy high-flow oxygen therapy (THFO) on the clinical efficacy of non-mechanically ventilated patients undergoing a tracheotomy. METHODS: ) < 300 mmHg (1 mmHg = 0.133 kPa), the occurrence of lower respiratory tract infections (based on radiography), and changes in sputum indexing and sputum formation. RESULTS: < 300 mmHg: 3.3% (1/30) vs. 10.0% (3/30), the proportion of lower respiratory tract infection: 6.7% (2/30) vs. 13.3% (4/30), all P < 0.05]. The proportion of patients with sputum scab formation and sputum viscosity of I degree were significantly increased [sputum scab formation: 16.7% (5/30) vs. 6.7% (2/30), sputum viscosity of I degree: 30.0% (9/30) vs. 20.0% (6/30), both P < 0.05]. CONCLUSIONS: THFO during non-mechanical ventilation of adult patients with tracheotomy can maintain a higher oxygen partial pressure and ideally control the temperature and humidity of the inhaled gas, promote the discharge of sputum with degree I and II viscosity, thereby reducing the tracheotomy complications such as lower respiratory tract infections.