ArticleIntensive care medicine experimental2023
Time spent above optimal cerebral perfusion pressure is not associated with failure to improve in outcome in traumatic brain injury.
Article in Intensive care medicine experimental, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- A noninvasive method for assessing optimal cerebral perfusion pressure.Critical care (London, England) · 2026Observational
- Altered Neurocritical Care Management of Patients with Severe Traumatic Brain Injury Following Changed Positions of the Zero-Reference Points for Intracranial and Arterial Pressure Measurement.Neurocritical care · 2026Article
- Intercerebral autoregulation index consistency in the derivation of CPPopt, MAPopt, and BISopt in humans: A scoping review.Physiological reports · 2025Article
- Outcome in adult patients with severe TBI, using a management protocol allowing a cerebral perfusion pressure ≤ 60 mmHg - a retrospective study over 10 years.Acta neurochirurgica · 2025Article
- Cerebral perfusion pressure targets after traumatic brain injury: a reappraisal.Critical care (London, England) · 2025Observational
- Continuous personalized cerebrovascular reactivity-based physiologic metrics in neurocritical care: a narrative review of the current landscape, limitations, and future directions.Frontiers in physiology · 2025Review
- Cerebral physiologic insult burden in acute traumatic neural injury: a Canadian High Resolution-TBI (CAHR-TBI) descriptive analysis.Critical care (London, England) · 2024Article
- Microvascular Autoregulation in Skeletal Muscle Using Near-Infrared Spectroscopy and Derivation of Optimal Mean Arterial Pressure in the ICU: Pilot Study and Comparison With Cerebral Near-Infrared Spectroscopy.Critical care explorations · 2024Observational
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Authors and funding
11 authors.
Funding
Abstract
backgroundOptimal cerebral perfusion pressure (CPPopt) has emerged as a promising personalized medicine approach to the management of moderate-to-severe traumatic brain injury (TBI). Though literature demonstrating its association with poor outcomes exists, there is yet to be work done on its association with outcome transition due to a lack of serial outcome data analysis. In this study we investigate the association between various metrics of CPPopt and failure to improve in outcome over time.
methodsCPPopt was derived using three different cerebrovascular reactivity indices; the pressure reactivity index (PRx), the pulse amplitude index (PAx), and the RAC index. For each index, % times spent with cerebral perfusion pressure (CPP) above and below its CPPopt and upper and lower limits of reactivity were calculated. Patients were dichotomized based on improvement in Glasgow Outcome Scale-Extended (GOSE) scores into Improved vs. Not Improved between 1 and 3 months, 3 and 6 months, and 1- and 6-month post-TBI. Logistic regression analyses were then conducted, adjusting for the International Mission for Prognosis and Analysis of Clinical Trials (IMPACT) variables.
resultsThis study included a total of 103 patients from the Winnipeg Acute TBI Database. Through Mann-Whitney U testing and logistic regression analysis, it was found that % time spent with CPP below CPPopt was associated with failure to improve in outcome, while % time spent with CPP above CPPopt was generally associated with improvement in outcome.
conclusionsOur study supports the existing narrative that time spent with CPP below CPPopt results in poorer outcomes. However, it also suggests that time spent above CPPopt may not be associated with worse outcomes and is possibly even associated with improvement in outcome.
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