英文摘要 |
In nasal high-flow oxygen therapy, continuous high-flow gas is used to form low positive pressure during exhalation. Just like the function of continuous positive airway pressure (CPAP), the therapy maintains adequate oxygenation and alveolar ventilation. It is applied to patients with acute respiratory failure, to improve heart and lung functions. This paper summarizes the clinical application of nasal high-flow oxygen therapy through complete literature analysis. Systematic analyses on randomized trials using nasal highflow oxygen therapy from January 2010 to March 2020 were searched and retrieved from the following databases: Cochrane, PubMed, CINAHL, ProQuest, and Airiti Library. The Chinese and English keywords were established by PICO: P: patients with acute respiratory failure; I: nasal high-flow oxygen therapy; C: traditional oxygen therapy; O: oxygenation concentration. A total of 9 articles were included. Nasal high-flow oxygen therapy as an intervention measure showed significant differences concerning the improvement of the oxygenation status, and the reduction of the respiratory frequency and probability of endotracheal intubation in patients with respiratory failure. The research results suggest that the therapy was beneficial for patients with acute respiratory failure; it could reduce the rates of endotracheal intubation and mortality, and improve oxygenation status. In the future, standard operating procedures should be established and applied in the clinical practice, concerning the timing and method of application, and the weaning from the therapy. In subsequent research, rigorous, blinded, and large-scale randomized controlled trials should be continued to verify and update these empirical results, to optimize the respiratory care approaches for patients in need. (Cheng Ching Medical Journal 2021; 17(3): 51-57) |