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Selecting outcome measures to validate prognostic biomarkers of paediatric mild traumatic brain injury: challenges
Jonathan E Attwood1,2, Izabelle Lövgren1,3, Rob Forsyth4
1Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.
Insights
Assessing outcomes after pediatric mild traumatic brain injury (mTBI) is complex. This study reviews current outcome measures and biomarkers, highlighting challenges for accurate prognosis in children.
Area of Science:
- Neuroscience
- Pediatric Neurology
- Clinical Traumatology
Background:
- Outcomes following pediatric mild traumatic brain injury (mTBI) are highly variable.
- Emerging biomarkers show promise for improved prognostic accuracy in mTBI.
- A critical gap exists in identifying the most accurate outcome measures for assessing injury impact.
Purpose of the Study:
- To identify barriers in selecting appropriate outcome measures for pediatric mTBI.
- To summarize current evidence on adverse outcomes and candidate biomarkers post-pediatric mTBI.
- To emphasize challenges in interpreting outcome measures in pediatric patients.
Main Methods:
- Literature review of recent studies on pediatric mTBI outcomes and biomarkers.
- Analysis of variability in outcome definitions and assessment tools.
- Consideration of developmental stage, assessment timing, and injury-independent factors.
Main Results:
- Significant heterogeneity exists in pediatric mTBI outcomes.
- Variability in outcome definitions and assessment tools complicates accurate measurement.
- Developmental stage and injury-independent factors present unique interpretation challenges.
Conclusions:
- Consensus definitions and standardized outcome measures are crucial for pediatric mTBI research.
- Longitudinal study designs are needed to capture injury-independent factors.
- Addressing these challenges will enhance the utility of prognostic biomarkers in pediatric mTBI.
Abstract:
Outcomes following paediatric mild traumatic brain injury (mTBI) are extremely heterogenous. While emerging biomarkers promise enhanced prognostic accuracy, a critical question remains unanswered-which outcome measures provide the most accurate assessment of injury impact? In this article, we highlight barriers to selecting appropriate outcome measures, including variability in how outcomes are defined and the wide range of assessment tools used. With reference to the most recent literature, we summarise current evidence of adverse outcomes following paediatric mTBI and highlight emerging candidate biomarkers of these outcomes. We emphasise the unique challenges associated with interpreting outcome measures in younger patients, from the impact of developmental stage and assessment timing to the influence of injury-independent factors. We assert the need to consider these obstacles when designing and interpreting mTBI biomarker studies. To realise the potential of prognostic biomarkers, future research should prioritise establishing consensus definitions, compiling a set of accessible and comprehensive outcome measures, and capturing injury-independent factors through longitudinal study designs.
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