Research Reports - Recovery progression and symptom resolution in sport-related mild traumatic brain injury

Brain Inj. 2017 Sep 5:1-7. doi: 10.1080/02699052.2017.1357834. [Epub ahead of
print]

Abbassi E(1), Sirmon-Taylor B(2).

OBJECTIVE: To characterize the recovery progression of a group of athletes who
participated in a concussion management program based on (1) group analysis and
(2) individual analysis.
SETTING: Concussion management clinic.
PARTICIPANTS: Thirty athletes (22 males, 8 females; baseline
age = 16.23 ± 2.40 years) who had undergone four assessments: one baseline and
three post-injury assessments at 3, 8, 15 days post-injury.
DESIGN: Retrospective clinical.
MAIN MEASURES: Four neurocognitive scores of the Immediate Post-concussion
Assessment and Cognitive Testing (ImPACT) including verbal memory, visual memory,
speed of processing and reaction time and also a total symptom score.
RESULTS: Group-analysis showed a clear decline in verbal memory (F(3, 87) = 7.36,
p < 0.000) and an increase in self-reported symptoms (χ(2)(3, N = 30) = 48.703,
p < 0.000), 3 days post-injury. By day 8, athletes had returned to their baseline
levels for verbal memory and were not experiencing symptoms. When athletes'
scores were examined individually, at 3 days post-injury, 60% of the athletes
showed deficits on two or more of the ImPACT variables. This rate dropped to 23%
at 8 days post-injury and remained the same (23%) 15 days post-injury.
CONCLUSIONS: In concussion recovery, variability is the rule, rather than the
exception, with regard to both impaired neurocognitive functions and recovery
duration. 

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