Sports Concussion and Chronic Traumatic Encephalopathy: Finding a Path Forward

Area of Science:

• Neurology
• Sports Medicine
• Neuroscience

Background:

• Sports concussion has gained attention due to the association with chronic traumatic encephalopathy (CTE).
• CTE is a tauopathy primarily found in former contact sports athletes with a history of repeated mild traumatic brain injury (mTBI).
• Diagnosis of CTE is only possible postmortem, and no effective treatments currently exist.

Purpose of the Study:

• To review the history and current understanding of CTE in the context of sports concussion.
• To address the ongoing controversy regarding the link between sports-related mild traumatic brain injury (mTBI) and CTE.
• To provide guidance for neurologists managing patients with concerns about CTE and to advance research in this area.

Main Methods:

• Literature review focusing on the history of CTE.
• Discussion of existing uncertainties and controversies surrounding sports concussion and CTE.
• Formulation of suggestions for neurologists and researchers.

Main Results:

• The link between sports concussion (mild traumatic brain injury) and CTE remains a subject of debate despite widespread acknowledgment of mTBI hazards.
• Areas of uncertainty in CTE diagnosis, pathogenesis, and its relationship with sports participation are highlighted.
• The review identifies key challenges and proposes avenues for future research and clinical management.

Conclusions:

• The relationship between sports concussion and CTE requires further clarification and research.
• Neurologists face challenges in addressing patient and public concerns regarding CTE.
• Continued investigation is crucial to resolve controversies and improve understanding of this neurodegenerative disease.