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Effect of postextubation high-flow nasal oxygen with noninvasive ventilation versus high-flow nasal oxygen alone on reintubation among patients at high risk of extubation failure: a randomized clinical trial [with consumer summary]
Thille AW, Muller G, Gacouin A, Coudroy R, Decavele M, Sonneville R, Beloncle F, Girault C, Dangers L, Lautrette A, Cabasson S, Rouze A, Vivier E, le Meur A, Ricard J-D, Razazi K, Barberet G, Lebert C, Ehrmann S, Sabatier C, Bourenne J, Pradel G, Bailly P, Terzi N, Dellamonica J, Lacave G, Danin P-E, Nanadoumgar H, Gibelin A, Zanre L, Deye N, Demoule A, Maamar A, Nay M-A, Robert R, Ragot S, Frat J-P, for the HIGH-WEAN Study Group and the REVA Research Network
JAMA 2019 Oct 15;322(15):1465-1475
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

IMPORTANCE: High-flow nasal oxygen may prevent postextubation respiratory failure in the intensive care unit (ICU). The combination of high-flow nasal oxygen with noninvasive ventilation (NIV) may be an optimal strategy of ventilation to avoid reintubation. OBJECTIVE: To determine whether high-flow nasal oxygen with prophylactic NIV applied immediately after extubation could reduce the rate of reintubation, compared with high-flow nasal oxygen alone, in patients at high risk of extubation failure in the ICU. DESIGN, SETTING, AND PARTICIPANTS: Multicenter randomized clinical trial conducted from April 2017 to January 2018 among 641 patients at high risk of extubation failure (ie, older than 65 years or with an underlying cardiac or respiratory disease) at 30 ICUs in France; follow-up was until April 2018. INTERVENTIONS: Patients were randomly assigned to high-flow nasal oxygen alone (n = 306) or high-flow nasal oxygen alternating with NIV (n = 342) immediately after extubation. MAIN OUTCOMES AND MEASURES: The primary outcome was the proportion of patients reintubated at day 7; secondary outcomes included postextubation respiratory failure at day 7, reintubation rates up until ICU discharge, and ICU mortality. RESULTS: Among 648 patients who were randomized (mean (SD) age 70 (10) years; 219 women (34%)), 641 patients completed the trial. The reintubation rate at day 7 was 11.8% (95% CI 8.4% to 15.2%) (40/339) with high-flow nasal oxygen and NIV and 18.2% (95% CI 13.9% to 22.6%) (55/302) with high-flow nasal oxygen alone (difference -6.4% (95% CI -12.0% to -0.9%); p = 0.02). Among the 11 prespecified secondary outcomes, 6 showed no significant difference. The proportion of patients with postextubation respiratory failure at day 7 (21% versus 29%; difference -8.7% (95% CI -15.2% to -1.8%); p = 0.01) and reintubation rates up until ICU discharge (12% versus 20%, difference -7.4% (95% CI -13.2% to -1.8%); p = 0.009) were significantly lower with high-flow nasal oxygen and NIV than with high-flow nasal oxygen alone. ICU mortality rates were not significantly different: 6% with high-flow nasal oxygen and NIV and 9% with high-flow nasal oxygen alone (difference -2.4% (95% CI -6.7% to 1.7%); p = 0.25). CONCLUSIONS AND RELEVANCE: In mechanically ventilated patients at high risk of extubation failure, the use of high-flow nasal oxygen with NIV immediately after extubation significantly decreased the risk of reintubation compared with high-flow nasal oxygen alone. TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT03121482.

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