• Chest · Oct 2020

    Incidence and risk model development for severe tachypnea following terminal extubation.

    • Corey R Fehnel, Miguel Armengol de la Hoz, Leo A Celi, Margaret L Campbell, Khalid Hanafy, Ala Nozari, Douglas B White, and Susan L Mitchell.
    • Hebrew SeniorLife Hinda and Arthur Marcus Institute for Aging Research, Boston, MA; Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA; Harvard Medical School, Boston, MA. Electronic address: cfehnel@bidmc.harvard.edu.
    • Chest. 2020 Oct 1; 158 (4): 1456-1463.

    BackgroundPalliative ventilator withdrawal (PVW) in the ICU is a common occurrence.Research QuestionThe goal of this study was to measure the rate of severe tachypnea as a proxy for dyspnea and to identify characteristics associated with episodes of tachypnea.Study Design And MethodsThis study assessed a retrospective cohort of ICU patients from 2008 to 2012 mechanically ventilated at a single academic medical center who underwent PVW. The primary outcome of at least one episode of severe tachypnea (respiratory rate > 30 breaths/min) within 6 h after PVW was measured by using detailed physiologic and medical record data. Multivariable logistic regression was used to examine the association between patient and treatment characteristics with the occurrence of a severe episode of tachypnea post extubation.ResultsAmong 822 patients undergoing PVW, 19% and 30% had an episode of severe tachypnea during the 1-h and 6-h postextubation period, respectively. Within 1 h postextubation, patients with the following characteristics were more likely to experience tachypnea: no pre-extubation opiates (adjusted OR [aOR], 2.08; 95% CI, 1.03-4.19), lung injury (aOR, 3.33; 95% CI, 2.19-5.04), Glasgow Coma Scale score > 8 (aOR, 2.21; 95% CI, 1.30-3.77), and no postextubation opiates (aOR, 1.90; 95% CI, 1.19-3.00).InterpretationUp to one-third of ICU patients undergoing PVW experience severe tachypnea. Administration of pre-extubation opiates (anticipatory dosing) represents a key modifiable factor that may reduce poor symptom control.Copyright © 2020 American College of Chest Physicians. All rights reserved.

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