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Chinese Journal of Critical Care Medicine(Electronic Edition) ›› 2024, Vol. 17 ›› Issue (01): 39-44. doi: 10.3877/cma.j.issn.1674-6880.2024.01.006

• Meta-Analysis • Previous Articles    

Hospital mortality in patients with acute hypoxemic respiratory failure treated with high-flow nasal cannula oxygen therapy: a cumulative meta-analysis

Weigang Yue1, Youfei Jiang1, Ruiyuan Yin1, Yuchen Wu1, Li Zeng2,(), Jinhui Tian3   

  1. 1. Department of Intensive Medicine, the First Hospital of Lanzhou University, Lanzhou 730000, China
    2. Department of Respiratory and Critical Care Medicine, the First Hospital of Lanzhou University, Lanzhou 730000, China
    3. Evidence Based Medicine Center of Lanzhou University, Lanzhou 730000, China; Key Laboratory of Evidence Based Medicine and Clinical Transformation of Gansu Province, Lanzhou 730000, China
  • Received:2023-10-28 Online:2024-02-29 Published:2024-04-07
  • Contact: Li Zeng

Abstract:

Objective

To evaluate the effect of high-flow nasal cannula (HFNC) oxygen therapy on the hospital mortality in patients with acute hypoxemic respiratory failure through a cumulative meta-analysis.

Methods

Randomized controlled trials (RCTs) on the effect of HFNC on patients with acute hypoxemic respiratory failure published up to June 30, 2022 were searched from PubMed, Web of Science, the Cochrane Library, CNKI, VIP and Wanfang databases. Patients in the experimental group received HFNC oxygen therapy, while patients in the control group were treated with face mask (FM) or noninvasive positive pressure ventilation (NIPPV) oxygen therapy. Relevant data were screened, evaluated and extracted by two researchers independently. Then the StataSE 12.0 software was utilized for a cumulative meta-analysis, and the trial sequential analysis (TSA) was used to evaluate the research results.

Results

A total of 2 989 patients were enrolled in 11 articles, including 1 464 in the experimental group and 1 525 in the control group (830 in FM and 695 in NIPPV). The cumulative meta-analysis showed that HFNC could reduce the hospital mortality of patients with acute hypoxemic respiratory failure [relative risk (RR) = 0.66, 95% confidence interval (CI) (0.51, 0.86), Z = 3.050, P = 0.002]. The TSA showed that the sample size of hospital mortality (n = 2 989) had not reached the required information size (RIS, n = 3 997), but the cumulative Z-value had crossed the traditional cut-off value and TSA cut-off value, indicating that the study obtained relatively positive results.

Conclusion

The HFNC oxygen therapy can effectively reduce the hospital mortality of patients with acute hypoxemic respiratory failure.

Key words: High-flow nasal cannula oxygen therapy, Noninvasive positive pressure ventilation, Acute hypoxemic respiratory failure, Cumulative meta-analysis, Trial sequential analysis

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