Seminars in pediatric neurology
January 21, 2026 · via Europe PMC
Longitudinal effects of pediatric concussion into adulthood.
Mathew RS, Segura C, Lemons A, Torres AR.
AI summary — for doctors, generated from the abstract only
This review finds that evidence on the long-term effects of pediatric concussion into adulthood remains limited and heterogeneous in humans, while animal models consistently show chronic neuroinflammation, neuronal loss, and memory deficits after adolescent brain injury.
What was studied
This is a review article summarizing current evidence on long-term outcomes of pediatric concussion extending into adulthood, covering human neuropsychiatric outcome studies, advanced neuroimaging studies, and rodent models of adolescent mild traumatic brain injury.
Key findings
- Findings regarding long-term neuropsychiatric outcomes in humans after pediatric concussion are described as heterogeneous across studies
- Advanced neuroimaging studies provide only limited evidence of lasting neurobiological alterations, and long-term human studies remain scarce
- Rodent models mimicking adolescent mild traumatic brain injury consistently demonstrate chronic neuroinflammation, neuronal loss, and memory deficits
- The review concludes that overall conclusions are constrained by substantial methodological heterogeneity across studies
Clinical relevance
The findings suggest that while animal models point to potential long-term biological consequences of adolescent brain injury, current human evidence is too limited and inconsistent to draw firm conclusions about long-term outcomes after pediatric concussion, which the authors state requires further high-quality longitudinal research to clarify. This should not be used to reassure or alarm patients about long-term prognosis given the stated evidence gaps.
Who should care
Limitations
The authors explicitly state that human long-term studies remain scarce and that conclusions are constrained by substantial methodological heterogeneity across the reviewed literature, and that rodent findings may not directly translate to human outcomes.
Evidence on long-term human outcomes after pediatric concussion remains limited and inconsistent, even though animal studies consistently show chronic brain changes after adolescent injury, underscoring the need for more rigorous longitudinal human research.
This is an AI-generated summary of the published abstract, not a clinical recommendation. It may not reflect the full text or subsequent updates — verify against the original source before acting on it.
Abstract
Each year, millions of children are diagnosed with concussions. This review summarizes current evidence on the long-term effects of pediatric concussion into adulthood. Findings regarding long-term neuropsychiatric outcomes are heterogeneous. Advanced neuroimaging studies provide limited evidence of lasting neurobiological alterations, and long-term studies remain scarce. Rodent models that mimic adolescent mild traumatic brain injury consistently demonstrate chronic neuroinflammation, neuronal loss, and memory deficits. Overall, conclusions are constrained by substantial methodological heterogeneity. Further high-quality longitudinal studies are needed to clarify the long-term impact of pediatric concussion.
DOI
10.1016/j.spen.2026.101259
PMID
41962997
Research metadata (titles, abstracts, authors, publication dates) is sourced from Europe PMC, which aggregates content from PubMed/MEDLINE, PubMed Central, and other providers under the U.S. National Library of Medicine (NLM/NCBI). NLM does not claim copyright on abstracts; the original journal publishers or authors may hold rights to the full articles. AI-generated summaries are derived only from the abstract, never the full text, and are always labeled as AI-generated.
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