A targeted neuropsychological examination of children with a history of sport-related concussion

The association between symptom burden and processing speed and executive functioning at 4 and 12 weeks following pediatric concussion

OBJECTIVES

Symptoms and cognition are both utilized as indicators of recovery following pediatric concussion, yet their interrelationship is not well understood. This study aimed to investigate: 1) the association of post-concussion symptom burden and cognitive outcomes (processing speed and executive functioning [EF]) at 4 and 12 weeks after pediatric concussion, and 2) the moderating effect of sex on this association.

METHODS

This prospective, multicenter cohort study included participants aged 5.00-17.99 years with acute concussion presenting to four Emergency Departments of the Pediatric Emergency Research Canada network. Five processing speed and EF tasks and the Post-Concussion Symptom Inventory (PCSI; symptom burden, defined as the difference between post-injury and retrospective [pre-injury] scores) were administered at 4 and 12 weeks post-concussion. Generalized least squares models were conducted with task performances as dependent variables and PCSI and PCSI*sex interaction as the main predictors, with important pre-injury demographic and injury characteristics as covariates.

RESULTS

311 children (65.0% males; median age = 11.92 [IQR = 9.14-14.21 years]) were included in the analysis. After adjusting for covariates, higher symptom burden was associated with lower Backward Digit Span (χ2 = 9.85, p = .043) and Verbal Fluency scores (χ2 = 10.48, p = .033) across time points; these associations were not moderated by sex, ps ≥ .20. Symptom burden was not associated with performance on the Coding, Continuous Performance Test, and Color-Word Interference scores, ps ≥ .17.

CONCLUSIONS

Higher symptom burden is associated with lower working memory and cognitive flexibility following pediatric concussion, yet these associations were not moderated by sex. Findings may inform concussion management by emphasizing the importance of multifaceted assessments of EF.

From Evidence-Based Guidelines to Clinical Practice: Pediatric Neuropsychology Care in Multidisciplinary Clinics

OBJECTIVE

High demand for pediatric neuropsychological care has highlighted the time- and resource-intensive nature of traditional comprehensive evaluations. Emerging care models address these constraints by facilitating tiered neuropsychological services provided in various contexts, including multidisciplinary clinics (MDCs). We aim to demonstrate feasibility and acceptability of tiered neuropsychological care in MDCs through examples from a single institution.

METHODS

A review of all current MDC practices at a tertiary pediatric care center was conducted to describe clinic workflow, services provided, and triage strategies. Pediatric neuropsychologists (n = 5) and other health care providers (n = 31) completed a survey focused on experience with neuropsychology consultation in MDCs.

RESULTS

Neuropsychologists provided care in 11 MDCs, including universal monitoring with consultative interviews and questionnaires, as well as targeted screening. Neuropsychologists (89%) and other health professionals (100%) reported that tiered neuropsychological services improved patient care within MDCs. Other health professionals reported utilizing results from neuropsychology MDC care to inform their clinical approach (48-90%), referrals (58%), and treatment or surveillance decisions (55-71%).

CONCLUSION

Tiered neuropsychological care in pediatric MDCs is feasible, and provider experience ratings indicate high acceptability. Practical steps for development of MDCs are provided, including identifying teams, clinic goals and outcomes, operational logistics, and billing.

Exploring Vestibular/Ocular and Cognitive Dysfunction as Prognostic Factors for Protracted Recovery in Sports-Related Concussion Patients Aged 8 to 12 Years

OBJECTIVE

To explore the prognostic ability of the vestibular/ocular motor screening (VOMS), King-Devick (K-D) Test, and C3 Logix Trails A and B to identify protracted recovery from sports-related concussion (SRC) in patients aged 8 to 12 years.

DESIGN

Retrospective cohort analysis.

SETTING

Specialty pediatric sports concussion clinic.

PARTICIPANTS

A total of 114 youth athletes aged 8 to 12 years who were diagnosed with an SRC within 7 days of injury.

INDEPENDENT VARIABLES

A positive screen on the VOMS, K-D, and C3 Logix Trails A and Trails B. Combined positive screens on multiple tests (ie, 2, 3, or all 4 positive screens of 4 possible).

MAIN OUTCOME MEASURES

Recovery time in days and protracted recovery (recovery time ≥30-days) were the primary outcomes of interest.

RESULTS

A positive VOMS screen was associated with 1.31 greater days to SRC recovery ( P = 0.02) than a negative VOMS screen. The K-D and C3 Logix tests were not significantly associated with recovery time, nor were any combinations of tests ( P > 0.05). The VOMS demonstrated moderate prognostic ability to predict normal recovery (negative predictive value = 80.78% [95% CI = 63.73-90.95]). Overall predictive accuracy of normal versus protracted recovery was strongest when a participant screened positive on all 4 tests (Accuracy = 76.32% [95% CI = 67.45-83.78]).

CONCLUSIONS

The VOMS was associated with overall recovery time and proved to be a useful test to identify those who would experience a normal recovery time. Combining the 4 tests improved the prognostic accuracy of the protocol in predicting protracted versus normal recovery. These findings suggest that combining multiple, varied assessments of cognition and vestibular/ocular functions may better explain factors contributing to protracted recovery.

Severity of Ongoing Post-Concussive Symptoms as a Predictor of Cognitive Performance Following a Pediatric Mild Traumatic Brain Injury

OBJECTIVE

This study aimed to examine the predictors of cognitive performance in patients with pediatric mild traumatic brain injury (pmTBI) and to determine whether group differences in cognitive performance on a computerized test battery could be observed between pmTBI patients and healthy controls (HC) in the sub-acute (SA) and the early chronic (EC) phases of injury.

METHOD

203 pmTBI patients recruited from emergency settings and 159 age- and sex-matched HC aged 8-18 rated their ongoing post-concussive symptoms (PCS) on the Post-Concussion Symptom Inventory and completed the Cogstate brief battery in the SA (1-11 days) phase of injury. A subset (156 pmTBI patients; 144 HC) completed testing in the EC (~4 months) phase.

RESULTS

Within the SA phase, a group difference was only observed for the visual learning task (One-Card Learning), with pmTBI patients being less accurate relative to HC. Follow-up analyses indicated higher ongoing PCS and higher 5P clinical risk scores were significant predictors of lower One-Card Learning accuracy within SA phase, while premorbid variables (estimates of intellectual functioning, parental education, and presence of learning disabilities or attention-deficit/hyperactivity disorder) were not.

CONCLUSIONS

The absence of group differences at EC phase is supportive of cognitive recovery by 4 months post-injury. While the severity of ongoing PCS and the 5P score were better overall predictors of cognitive performance on the Cogstate at SA relative to premorbid variables, the full regression model explained only 4.1% of the variance, highlighting the need for future work on predictors of cognitive outcomes.

Academic Performance Following Sport-Related Concussions in Children and Adolescents: A Scoping Review

Sport-related concussions (SRC) are an increasingly common concern in young athletes, with long-term cognitive, physiological, behavioral, and psychological adverse outcomes. An estimated 1.1 million to 1.9 million SRCs occur per year in children <18 years old in the United States. The post-concussive state has demonstrated consequences in several domains, including athletics and academics, although much more research has been conducted on the former. The objective of this scoping review was to ascertain findings from published studies on the effects of SRCs on academic performance and quality of life of young student athletes. A total of 175 articles were screened within the PubMed and CINAHL databases, along with a Google search. Fourteen papers fulfilled the inclusion criteria and were analyzed in the review. Quantitative and qualitative data were collated and demonstrated the heterogeneity with which, post-concussion academic performance outcomes were measured; only 4 of the 14 studies utilized formal academic metrics such as changes in grade point average (GPA) or examination scores. While the results overall did show statistically significant implications on academic performance decline after SRC, it is clear that there remains a paucity of research determining the consequences of SRCs on academic performance in the school environment. Further research is needed to better understand how to implement accommodations in the student’s learning environment and guide return-to-learn protocols for student athletes following SRC.