The present study evaluated the effect of two active warming and humidifying high‑flow oxygen therapy systems in patients with tracheotomy, in order to provide a basis for selecting the method of humidification oxygen therapy for tracheotomy. A total of 78 patients with tracheotomy, who underwent surgery between July 2017 and December 2017, were randomly divided into an observation group (39 patients) and a control group (39 patients). Patients in the observation group were treated with artificial airway high‑flow humidification oxygen therapy in a closed suction system. Patients in the control group were treated using a respiratory humidification therapy device. Changes of sputum viscosity, pulmonary infection, arterial oxygen partial pressure (PaO2), arterial blood carbon dioxide partial pressure (PaCO2) and arterial oxygen saturation (SaO2) were observed at 0, 48 and 96 h, and 7 days following oxygen therapy. The sputum viscosity and lung infection in the observation group were lower than those in the control group at 48, 96 h and 7 days following oxygen therapy, and the PaO2 and SaO2 were higher in the observation group than in the control group, which was statistically significant (P<0.05). However, there was no statistically significant difference (P>0.05) in PaCO2 between the two groups. In conclusion, the artificial airway high‑flow humidification oxygen therapy closed suction system was considered more suitable for long‑term oxygen therapy of tracheotomy patients than the respiratory humidification therapy device. It can improve airway humidification and oxygen levels at lower equipment and consumable costs. The effects of treatment aim to reduce lung infections, which have clinical implications to a certain extent.两种主动加温加湿高流量氧气治疗系统对气管切开术患者的疗效评估摘要本研究评价了两种主动加温加湿高流量氧疗系统在气管切开术患者中的应用效果，为气管切开患者选择湿化氧治疗方法提供依据。在2017年7月至2017年12月期间，共有78名气管切开术患者被随机分为观察组（39名患者）和对照组（39名患者）。观察组的患者在封闭的抽吸系统中接受了人工气道高流量加湿氧疗。对照组采用呼吸湿化治疗仪。观察氧疗后0、48、96h、7d痰粘度、肺部感染、动脉血氧分压（PaO2）、动脉血氧分压（PaCO2）和动脉血氧饱和度（SaO2）的变化。氧疗后48、96h、7d观察组痰粘度、肺部感染均低于对照组，PaO2、SaO2高于对照组，差异有统计学意义（P<0.05）。两组间PaCO2无显著性差异（P>0.05）。综上所述，人工气道高流量湿化氧疗闭式吸引系统比呼吸湿化治疗装置更适合气管切开患者的长期氧疗。它可以在较低的设备和消耗成本下改善气道湿化和氧其含量。治疗效果以减少肺部感染为目的，具有一定的临床意义。
