• Teressa Reanne Ju, Emily Wang, Christian Castaneda, Anisha Rathod, and Olumayowa Abe.
• Department of Medicine, NewYork-Presbyterian Queens Hospital, Flushing, NY, USA. Electronic address: tej9016@nyp.org.
• J Crit Care. 2022 Feb 1; 67: 39-43.

IntroductionUnplanned extubations (UEs) refer to the inadvertent removal of endotracheal tubes (ETTs). Superficially placed ETTs anecdotally increases the risk of UEs. This study aims to assess the impact of ETT position as well as other factors that could be associated with risk of UEs.MethodA retrospective case-control study was conducted at NewYork-Presbyterian Queens Hospital from January 2017 to February 2020. All adults admitted to intensive care units (ICUs) who received mechanical ventilation (MV) through ETTs were screened to identify UEs. For each case with UE, two controls with planned extubation were identified. A multivariate logistic regression was conducted to identify risk factors associated with UEs.Results1100 patients received MV through ETTs during the time period. The incidence of UE was 4.9%. 53 patients with UEs and 106 patients with planned extubation were included for statistical analysis. Overall, patients with UE had higher in-hospital mortality rates (26.4% versus 11.3%, P = 0.02) and reintubation rates (28.3% versus 6.6%, P < 0.001). Within the UE group, patients who required reintubation had significantly higher in-hospital mortality rates than those who did not require reintubation (53.3% versus 15.8%, P = 0.005). Multivariate logistic regression showed higher APACHE II scores (Odds ratios (OR) 1.07; 95% Confidence interval (CI), 1 to 1.13), distance of ETT tips to carina ≥6 cm (OR 6.41; 95% CI, 1.1 to 37.3), physical restraint use (OR 2.98; 95% CI, 1.28 to 6.95) and continuous infusions of sedatives and/or analgesics (OR 10.72, 95% CI, 4.19 to 27.43) were associated with UE.ConclusionUE and the need for reintubation is associated with worse outcomes. Distance of ETT tips to carina ≥6 cm may be associated with higher risks of UE. Further prospective studies are needed to establish the optimal position of ETT to prevent UE.Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.

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