Abstract:Objective To explore the application of high-flow respiratory humidification therapy instrument in programmed weaning process. Methods Eighty patients who underwent programmed weaning at ICU in the hospital were divided into observation group (43 cases) and control group (37 cases) according to their willingness of oxygen offering methods. The observation group was treated with high-flow respiratory humidification therapy instrument for oxygen offering. The control group was treated with traditional mask oxygen offering method. The arterial partial pressure of oxygen (PaO2), blood oxygen saturation (SpO2), modified british medical research council (mMRC), sputum viscosity, re-cathetering rate, and hospital stays in both groups at 30 min, 2 h and 24 h after different oxygen offering methods given to patients were recorded. Results There were differences in PaO2, SpO2, and mMRC at different time points (P < 0.05). There were differences in PaO2, SpO2, and mMRC between the two groups at resting status (P < 0.05). PaO2 and SpO2 in observation group were higher than those in control group, while mMRC was lower than that in control group. There were differences in changes trend of PaO2, SpO2 and mMRC in the two groups (P <0.05). There was no significant difference in PaO2, SpO2, mMRC or sputum viscosity level between the two groups at 30 min and 2 h after oxygen offering (P >0.05). At 24 h after oxygen offering, PaO2 and SpO2 of the observation group were higher than those of the control group (P < 0.05), while mMRC was lower than that of the control group (P < 0.05), and the sputum viscosity level was better than that of the control group (P < 0.05). The re-cathetering rate of the observation group was lower than that of the control group (P < 0.05), and hospital stays was shorter than that of the control group (P < 0.05). Conclusion The application effect of high-flow respiratory humidification therapy instrument is relatively better in the process of programmed weaning. It is worthy of clinical promotion and application.