Atypical symptom reporting after mild traumatic brain injury

Area of Science:

• Neuroscience
• Traumatology
• Clinical Research

Background:

• Mild traumatic brain injury (mTBI) can lead to a range of symptoms, with early indicators of prognosis being crucial for patient management.
• Atypical symptoms, distinct from common post-concussion complaints, may offer unique insights into recovery trajectories.
• Understanding the prognostic value of early symptom presentation is vital for effective clinical intervention and patient counseling.

Purpose of the Study:

• To determine the prevalence of atypical symptoms one month after mild traumatic brain injury (mTBI).
• To investigate the association between reporting atypical symptoms at one month and self-rated recovery at twelve months post-mTBI.
• To identify early indicators of poor prognosis following mild traumatic brain injury in a community-dwelling sample.

Main Methods:

• A longitudinal incidence study (BIONIC) identified adult participants (n=260) with mTBI.
• Atypical symptoms (hemiplegia, dysphagia, digestive issues, fine motor difficulties) were assessed at 1 month post-injury using supplementary items.
• Ordinal regression analysis explored the link between 1-month atypical symptoms and 12-month self-rated recovery, controlling for covariates.

Main Results:

• Prevalence of specific atypical symptoms at 1 month: hemiplegia (<1%), difficulty swallowing (5.4%), digestion problems (10%), fine motor difficulties (15.4%).
• Atypical symptoms at 1 month were not significant predictors of self-rated recovery at 12 months post-injury.
• Older age at injury and higher burden of typical symptoms at 1 month were independently associated with poorer 12-month recovery (p < 0.01).

Conclusions:

• Early reporting of atypical symptoms following mild traumatic brain injury (mTBI) is not associated with global self-reported recovery at 12 months.
• Age at injury and the presence of typical symptoms are more robust early predictors of longer-term prognosis after mTBI.
• Further research is warranted to explore the predictive value of atypical symptoms for other specific outcomes in mTBI patients.