1. Late Awakening Is Common in Settings Without Withdrawal of Life-Sustaining Therapy in Out-of-Hospital Cardiac Arrest Survivors Who Undergo Targeted Temperature Management.
- Author
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Lee DH, Cho YS, Lee BK, Lee HY, Jeung KW, Jung YH, Park KN, Kim YJ, Chae MK, and Seo DW
- Subjects
- Aged, Cohort Studies, Female, Humans, Hypothermia, Induced methods, Hypothermia, Induced statistics & numerical data, Intensive Care Units organization & administration, Intensive Care Units statistics & numerical data, Male, Middle Aged, Out-of-Hospital Cardiac Arrest epidemiology, Out-of-Hospital Cardiac Arrest mortality, Republic of Korea epidemiology, Retrospective Studies, Statistics, Nonparametric, Survivors statistics & numerical data, Hypothermia, Induced standards, Out-of-Hospital Cardiac Arrest complications, Time Factors, Withholding Treatment statistics & numerical data
- Abstract
Objectives: We investigated awakening time and characteristics of awakening compared nonawakening and factors contributing to poor neurologic outcomes in out-of-hospital cardiac arrest survivors in no withdrawal of life-sustaining therapy settings., Design: Retrospective analysis of the Korean Hypothermia Network Pro registry., Setting: Multicenter ICU., Patients: Adult (≥ 18 yr) comatose out-of-hospital cardiac arrest survivors who underwent targeted temperature management at 33-36°C between October 2015 and December 2018., Interventions: None., Measurements and Main Results: We measured the time from the end of rewarming to awakening, defined as a total Glasgow Coma Scale score greater than or equal to 9 or Glasgow Coma Scale motor score equals to 6. The primary outcome was awakening time. The secondary outcome was 6-month neurologic outcomes (poor outcome: Cerebral Performance Category 3-5). Among 1,145 out-of-hospital cardiac arrest survivors, 477 patients (41.7%) regained consciousness 30 hours (6-71 hr) later, and 116 patients (24.3%) awakened late (72 hr after the end of rewarming). Young age, witnessed arrest, shockable rhythm, cardiac etiology, shorter time to return of spontaneous circulation, lower serum lactate level, absence of seizures, and multisedative requirement were associated with awakening. Of the 477 who woke up, 74 (15.5%) had poor neurologic outcomes. Older age, liver cirrhosis, nonshockable rhythm, noncardiac etiology, a higher Sequential Organ Failure Assessment score, and higher serum lactate levels were associated with poor neurologic outcomes. Late awakeners were more common in the poor than in the good neurologic outcome group (38/74 [51.4%] vs 78/403 [19.4%]; p < 0.001). The awakening time (odds ratio, 1.005; 95% CIs, 1.003-1.008) and late awakening (odds ratio, 3.194; 95% CIs, 1.776-5.746) were independently associated with poor neurologic outcomes., Conclusions: Late awakening after out-of-hospital cardiac arrest was common in no withdrawal of life-sustaining therapy settings and the probability of awakening decreased over time., Competing Interests: The authors have disclosed that they do not have any potential conflicts of interest., (Copyright © 2021 by the Society of Critical Care Medicine and Wolters Kluwer Health, Inc. All Rights Reserved.)
- Published
- 2022
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