• Can J Anaesth · Sep 2023

    Multicenter Study

    Tracheostomy versus prolonged intubation in moderate to severe traumatic brain injury: a multicentre retrospective cohort study.

    • Noémie Villemure-Poliquin, Olivier Costerousse, Lessard BonaventurePaulePCHU de Québec - Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Quebec City, QC, Canada.Division of Neurosurgery, Department of Surgery, CHU, Nathalie Audet, François Lauzier, Lynne Moore, Ryan Zarychanski, and Alexis F Turgeon.
    • CHU de Québec - Université Laval Research Center, Population Health and Optimal Health Practices Research Unit (Trauma-Emergency-Critical Care Medicine), Quebec City, QC, Canada.
    • Can J Anaesth. 2023 Sep 1; 70 (9): 151615261516-1526.

    PurposeTracheostomy is a surgical procedure that is commonly performed in patients admitted to the intensive care unit (ICU). It is frequently required in patients with moderate to severe traumatic brain injury (TBI), a subset of patients with prolonged altered state of consciousness that may require a long period of mechanical respiratory assistance. While many clinicians favour the use of early tracheostomy in TBI patients, the evidence in favour of this practice remains scarce. The aims of our study were to evaluate the potential clinical benefits of tracheostomy versus prolonged endotracheal intubation, as well as whether the timing of the procedure may influence outcome in patients with moderate to severe TBI.MethodsWe conducted a retrospective multicentre cohort study based on data from the provincial integrated trauma system of Quebec (Québec Trauma Registry). The study population was selected from adult trauma patients hospitalized between 2013 and 2019. We included patients 16 yr and older with moderate to severe TBI (Glasgow Coma Scale score < 13) who required mechanical ventilation for 96 hr or longer. Our primary outcome was 30-day mortality. Secondary outcomes included hospital and ICU mortality, six-month mortality, duration of mechanical ventilation, ventilator-associated pneumonia, ICU and hospital length of stay as well as orientation of patients upon discharge from the hospital. We used propensity score covariate adjustment. To overcome the effect of immortal time bias, an extended Cox shared frailty model was used to compare mortality between groups.ResultsFrom 2013 to 2019, 26,923 patients with TBI were registered in the Québec Trauma Registry. A total of 983 patients who required prolonged endotracheal intubation for 96 hr or more were included in the study, 374 of whom underwent a tracheostomy and 609 of whom remained intubated. We observed a reduction in 30-day mortality (adjusted hazard ratio, 0.33; 95% confidence interval, 0.21 to 0.53) associated with tracheostomy compared with prolonged endotracheal intubation. This effect was also seen in the ICU as well as at six months. Tracheostomy, when compared with prolonged endotracheal intubation, was associated with an increase in the duration of mechanical respiratory assistance without any increase in the length of stay. No effect on mortality was observed when comparing early vs late tracheostomy procedures. An early procedure was associated with a reduction in the duration of mechanical respiratory support as well as hospital and ICU length of stay.ConclusionIn this multicentre cohort study, tracheostomy was associated with decreased mortality when compared with prolonged endotracheal intubation in patients with moderate to severe TBI. This effect does not appear to be modified by the timing of the procedure. Nevertheless, the generalization and application of these results remains limited by potential residual time-dependent indication bias.© 2023. The Author(s).

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