Abstract
Objective
To synthesize reported long-term outcomes in patients undergoing tracheostomy after severe acute brain injury (SABI).
Methods
We systematically searched PubMed, EMBASE, and Cochrane Library for studies in English, German, and Spanish between 1990 and 2019, reporting outcomes in patients with SABI who underwent tracheostomy. We adhered to the preferred reporting items for systematic reviews and meta-analyses guidelines and the meta-analyses of observational studies in epidemiology guidelines. We excluded studies reporting on less than 10 patients, mixed populations with other neurological diseases, or studies assessing highly select subgroups defined by age or procedures. Data were extracted independently by two investigators. Results were pooled using random effects modeling. The primary outcome was long-term functional outcome (mRS or GOS) at 6–12 months. Secondary outcomes included hospital and long-term mortality, decannulation rates, and discharge home rates.
Results
Of 1405 studies identified, 61 underwent full manuscript review and 19 studies comprising 35,362 patients from 10 countries were included in the meta-analysis. The primary outcome was available from five studies with 451 patients. At 6–12 months, about one-third of patients (30%; 95% confidence interval [CI] 17–48) achieved independence, and about one-third survived in a dependent state (36%, 95% CI 28–46%). The pooled short-term mortality for 19,048 patients was 12%, (95% CI 9–17%) with no significant difference between stroke (10%) and TBI patients (13%), and the pooled long-term mortality was 21% (95% CI 11–36). Decannulation occurred in 79% (95% CI 51–93%) of survivors. Heterogeneity was high for most outcome assessments (I2 > 75%).
Conclusions
Our findings suggest that about one in three patients with SABI who undergo tracheostomy may eventually achieve independence. Future research is needed to understand the reasons for the heterogeneity between studies and to identify those patients with promising outcomes as well as factors influencing outcome.
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Acknowledgements
Dr. Claire J. Creutzfeldt receives funding from the NIH–National Institutes of Neurological Disease and Stroke (NINDS) (K23 NS099421). We would like to thank Dr. Renato Avesani (Department of Rehabilitation, Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy) and Dr. Florian Gessler (Department of Neurosurgery, Universitaetsklinikum Frankfurt, Germany) for sharing unpublished data, outlining details of neurological outcomes within their studies, which were highly relevant for our analysis and this manuscript.
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SW contributed to study concept and design, data acquisition, data analysis, writing and editing of the manuscript. MS contributed to the statistical analysis, and editing of the manuscript. FC contributed to the literature search, data management, and editing of the manuscript. JG contributed to data analysis and editing of the manuscript. NJJ contributed to data analysis, and editing of the manuscript. WL contributed to study concept and design, data analysis, and editing of the manuscript. CJC contributed to study concept and design, data acquisition, data analysis, writing and editing of the manuscript.
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Wahlster, S., Sharma, M., Chu, F. et al. Outcomes After Tracheostomy in Patients with Severe Acute Brain Injury: A Systematic Review and Meta-Analysis. Neurocrit Care 34, 956–967 (2021). https://doi.org/10.1007/s12028-020-01109-9
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DOI: https://doi.org/10.1007/s12028-020-01109-9