• Neurosurgery · Nov 2022

    The Impact of Frailty on Traumatic Brain Injury Outcomes: An Analysis of 691 821 Nationwide Cases.

    • Oliver Y Tang, Belinda Shao, Anna R Kimata, Rahul A Sastry, Joshua Wu, and Wael F Asaad.
    • Department of Neurosurgery, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA.
    • Neurosurgery. 2022 Nov 1; 91 (5): 808820808-820.

    BackgroundFrailty, a decline in physiological reserve, prognosticates poorer outcomes for several neurosurgical conditions. However, the impact of frailty on traumatic brain injury outcomes is not well characterized.ObjectiveTo analyze the association between frailty and traumatic intracranial hemorrhage (tICH) outcomes in a nationwide cohort.MethodsWe identified all adult admissions for tICH in the National Trauma Data Bank from 2007 to 2017. Frailty was quantified using the validated modified 5-item Frailty Index (mFI-5) metric (range = 0-5), with mFI-5 ≥2 denoting frailty. Analyzed outcomes included in-hospital mortality, favorable discharge disposition, complications, ventilator days, and intensive care unit (ICU) and total length of stay (LOS). Multivariable regression assessed the association between mFI-5 and outcomes, adjusting for patient demographics, hospital characteristics, injury severity, and neurosurgical intervention.ResultsA total of 691 821 tICH admissions were analyzed. The average age was 57.6 years. 18.0% of patients were frail (mFI-5 ≥ 2). Between 2007 and 2017, the prevalence of frailty grew from 7.9% to 21.7%. Frailty was associated with increased odds of mortality (odds ratio [OR] = 1.36, P < .001) and decreased odds of favorable discharge disposition (OR = 0.72, P < .001). Frail patients exhibited an elevated rate of complications (OR = 1.06, P < .001), including unplanned return to the ICU (OR = 1.55, P < .001) and operating room (OR = 1.17, P = .003). Finally, frail patients experienced increased ventilator days (+12%, P < .001), ICU LOS (+11%, P < .001), and total LOS (+13%, P < .001). All associations with death and disposition remained significant after stratification for age, trauma severity, and neurosurgical intervention.ConclusionFor patients with tICH, frailty predicted higher mortality and morbidity, independent of age or injury severity.Copyright © Congress of Neurological Surgeons 2022. All rights reserved.

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