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Effect of Noninvasive Ventilation Delivered by Helmet vs Face Mask on the Rate of Endotracheal Intubation in Patients With Acute Respiratory Distress Syndrome: A Randomized Clinical Trial.
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- Author(s): Patel, Bhakti K.; Wolfe, Krysta S.; Pohlman, Anne S.; Hall, Jesse B.; Kress, John P.
- Source:
JAMA: Journal of the American Medical Association; 6/14/2016, Vol. 315 Issue 22, p2435-2441, 7p- Subject Terms:
NONINVASIVE ventilation; SPORTS masks; ARTIFICIAL respiration equipment; ARTIFICIAL respiration; ADULT respiratory distress syndrome treatment; APACHE (Disease classification system); COMPARATIVE studies; LENGTH of stay in hospitals; INTENSIVE care units; RESEARCH methodology; MEDICAL cooperation; RESEARCH; RESEARCH funding; ADULT respiratory distress syndrome; SAFETY hats; TIME; TRACHEA intubation; EVALUATION research; RANDOMIZED controlled trials; SKIN ulcers - Source:
- Additional Information
- Abstract:
Importance: Noninvasive ventilation (NIV) with a face mask is relatively ineffective at preventing endotracheal intubation in patients with acute respiratory distress syndrome (ARDS). Delivery of NIV with a helmet may be a superior strategy for these patients.Objective: To determine whether NIV delivered by helmet improves intubation rate among patients with ARDS.Design, Setting, and Participants: Single-center randomized clinical trial of 83 patients with ARDS requiring NIV delivered by face mask for at least 8 hours while in the medical intensive care unit at the University of Chicago between October 3, 2012, through September 21, 2015.Interventions: Patients were randomly assigned to continue face mask NIV or switch to a helmet for NIV support for a planned enrollment of 206 patients (103 patients per group). The helmet is a transparent hood that covers the entire head of the patient and has a rubber collar neck seal. Early trial termination resulted in 44 patients randomized to the helmet group and 39 to the face mask group.Main Outcomes and Measures: The primary outcome was the proportion of patients who required endotracheal intubation. Secondary outcomes included 28-day invasive ventilator-free days (ie, days alive without mechanical ventilation), duration of ICU and hospital length of stay, and hospital and 90-day mortality.Results: Eighty-three patients (45% women; median age, 59 years; median Acute Physiology and Chronic Health Evaluation [APACHE] II score, 26) were included in the analysis after the trial was stopped early based on predefined criteria for efficacy. The intubation rate was 61.5% (n = 24) for the face mask group and 18.2% (n = 8) for the helmet group (absolute difference, -43.3%; 95% CI, -62.4% to -24.3%; P < .001). The number of ventilator-free days was significantly higher in the helmet group (28 vs 12.5, P < .001). At 90 days, 15 patients (34.1%) in the helmet group died compared with 22 patients (56.4%) in the face mask group (absolute difference, -22.3%; 95% CI, -43.3 to -1.4; P = .02). Adverse events included 3 interface-related skin ulcers for each group (ie, 7.6% in the face mask group had nose ulcers and 6.8% in the helmet group had neck ulcers).Conclusions and Relevance: Among patients with ARDS, treatment with helmet NIV resulted in a significant reduction of intubation rates. There was also a statistically significant reduction in 90-day mortality with helmet NIV. Multicenter studies are needed to replicate these findings.Trial Registration: clinicaltrials.gov Identifier: NCT01680783. [ABSTRACT FROM AUTHOR] - Abstract: Copyright of JAMA: Journal of the American Medical Association is the property of American Medical Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Abstract:
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