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加温加湿高流量鼻导管吸氧是一种新型氧疗技术，因其独特的生理作用和良好的患者接受度，已越来越广泛的应用于临床。该技术较传统的氧疗更能维持稳定的氧饱和度，且患者易接受，适用于轻中度缺氧或保守治疗的患者。但目前由于其在成年患者中的应用经验不足，缺乏明确的适应证和禁忌证，故仍需大量的随机对照试验去探究远期效果，并最终形成临床应用指南。“,”The heated and humidified high flow nasal cannula oxygen is a completely new oxygen therapy technique,it has become more and more widely used in clinical practice for its unique physiological effects and good patient acceptance.This technique maintains a stable oxygen saturation more than the tradi-tional oxygen therapy,and patients are prone to accept,which fits for patients with mild to moderate hypoxia or patients undergoing conservative treatment.However,the application experience in adult patients is insuffi-cient,and is lack of clear indications and contraindications,more randomized controlled trials are needed to explore its long-term effects and finally form the clinical application guide .