Measuring Fatigue in TBI: Development of the TBI-QOL Fatigue Item Bank and Short Form

Qualitative Analysis of Symptoms from the Central Thalamic Deep Brain Stimulation Trial for Traumatic Brain Injury

BackgroundStudies of moderate-to-severe traumatic brain injury (TBI) report persistent clinical impairment post-injury. In the CENTURY-S study of deep brain stimulation (DBS) in chronic TBI, Schiff et al.'s paper, "Thalamic deep brain stimulation in traumatic brain injury: a phase 1, randomized feasibility study" demonstrated improvements in executive control. A companion narrative analysis by Fins et al., "Subject and Family Perspectives from the Central Thalamic Deep Brain Stimulation Trial for Traumatic Brain Injury" Parts I and II described improvements in cognitive, behavioral, and emotional capabilities.ObjectiveThe present study provides an aggregate symptom assessment utilizing pre- and post-DBS narratives from subjects and their family members.MethodsDrawing upon participants from the CENTURY-S study, Fins et al. conducted semi-structured interviews with five subjects with moderate-to-severe TBI and their family members. Transcripts were subsequently coded deductively and inductively in Dedoose by two independent investigators.ResultsSubjects and families frequently volunteered memory and cognitive symptoms as well as difficulties with self-regulation, frustration, and irritability pre-DBS. Following stimulation, four subjects and four families noted improvement in memory and attention and focus, while three subjects and five families volunteered improvements in self-regulation. Fatigue improved in three subjects who previously reported this symptom and in one who did not.ConclusionsSecondary qualitative analysis of narrative data of DBS trial participants supports the incorporation of qualitative data as additional outcome measures in studies of DBS in TBI.

Measurement properties of the Traumatic Brain Injury Quality of Life (TBI-QoL) and Spinal Cord Injury Quality of Life (SCI-QoL) measurement systems: a systematic review

PURPOSE

Traumatic brain injury and spinal cord injury impact all areas of individuals' quality of life. A synthesis of available evidence for the Traumatic Brain Injury Quality of Life (TBI-QoL) and Spinal Cord Injury Quality of Life (SCI-QoL) measurement systems could inform evidence-based clinical practice and research. Thus, we aimed to systematically review the literature of existing evidence on the measurement properties of SCI-QoL and TBI-QoL among rehabilitation populations.

METHODS

We used the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN) framework for evaluating measures to guide this systematic review. We searched nine electronic databases and registries, and hand-searched reference lists of included articles. Two independent reviewers screened selected articles and extracted the data. We used COSMIN's thresholds to synthesize measurement properties evidence (insufficient, sufficient), and the modified GRADE approach to synthesize evidence quality (very-low, low, moderate, high).

RESULTS

We included 16 studies for SCI-QoL and 14 studies for TBI-QoL. Both measurement systems have sufficient content validity, structural validity, internal consistency and construct validity across nearly all domains (GRADE: high). Most SCI-QoL domains and some TBI-QoL domains have sufficient evidence of cross-cultural validity and test-retest reliability (GRADE: moderate-high). Besides the cognition domains of TBI-QoL, which have indeterminate evidence for measurement error and sufficient evidence for responsiveness (GRADE: high), there is no additional evidence available for these measurement properties.

CONCLUSION

Rehabilitation researchers and clinicians can use SCI-QoL and TBI-QoL to describe and evaluate patients. Further evidence of measurement error, responsiveness, and predictive validity would advance the use and interpretation of SCI-QoL and TBI-QoL in rehabilitation.

Perceptions of communication recovery following traumatic brain injury: A qualitative investigation across 2 years

BACKGROUND

Exploring the perceptions of individuals with traumatic brain injury (TBI) towards their brain injury recovery across the continuum of care may offer insights to support engagement with rehabilitation services. Illness narratives are a potentially valuable avenue for examining perceptions of recovery that may influence engagement.

AIMS

The aim of this study is to explore the perspective of individuals with severe TBI towards their communication, brain injury and recovery experiences at 6 months, 1 year and 2 years post-injury.

METHODS & PROCEDURES

Discourse samples were obtained from 12 participants with severe TBI at 6 months, 1 year and 2 years following injury. A standardised protocol was used to elicit responses relating to perceptions of communication, the brain injury narrative, and perceptions of recovery facilitators. A thematic analysis of the discourse samples was completed.

OUTCOMES & RESULTS

Three overarching themes were identified: experiences of communication recovery are diverse (Theme 1), varied experiences of recovery and rehabilitation (Theme 2), and continuous and lifelong journey of recovery (Theme 3). Primary communication concerns included presence of anomia, dysarthria, conversational topic difficulties, impacts of fatigue and memory difficulties. Illness narratives revealed the importance of re-establishing a sense of self and the perceived importance of a strong social network post-injury.

CONCLUSIONS & IMPLICATIONS

The varied nature of communication challenges and recovery after TBI highlights the need for holistic, multidisciplinary support as well as inclusion of family and friends in the recovery process. Social communication intervention is a perceived priority area for individuals with TBI. Illness narratives may also play a valuable role in therapy and help to shape post-injury identity. Managing the impacts of fatigue on communication and encouraging individuals to take ownership over their recovery and treatment may also help to improve patient outcomes. Supporting individuals to construct positive brain injury narratives that reaffirm a sense of self and include perspectives of family and friends may offer a potential future avenue for rehabilitation. Tailored but flexible, team-based service delivery models for individuals with TBI that span from acute to long-term care are warranted. WHAT THIS STUDY ADDS?: What is already known on this subject Communication recovery from traumatic brain injury (TBI) is complex and multifaceted. The perceptions of individuals with TBI toward their communication recovery is largely unknown. To establish rehabilitation services that meet the needs of these individuals, we need to understand how they experience communication recovery. What this paper adds to existing knowledge Social communication interventions were perceived as a priority for intervention by individuals with TBI. Fatigue was identified as perceived barrier to communication recovery. Taking ownership over one's recovery process was revealed as a facilitator of recovery. Illness narratives were found to strengthen post-injury identity over time. What are the potential or actual clinical implications of this work? Speech pathologists should prioritise social communication interventions and fatigue management for communication. Facilitating ownership of the recovery process and offering long-term supports are key aspects of treatment. Supporting positive illness narratives as part of treatment may facilitate post-injury identity construction.

Autonomic Cardiovascular Control, Psychological Well-Being, and Cognitive Performance in People With Spinal Cord Injury

PURPOSE

To examine associations between parameters of psychological well-being, injury characteristics, cardiovascular autonomic nervous system (ANS) control, and cognitive performance in persons with spinal cord injury (SCI) compared with age-matched uninjured controls. This is an observational, cross-sectional study including a total of 94 participants (52 with SCI and 42 uninjured controls: UIC). Cardiovascular ANS responses were continuously monitored at rest and during administration of the Paced Auditory Serial Addition Test (PASAT). Self-report scores on the SCI-Quality of Life questionnaires are reported for depression, anxiety, fatigue, resilience, and positive affect. Participants with SCI performed significantly more poorly on the PASAT compared with the uninjured controls. Although not statistically significant, participants with SCI tended to report more psychological distress and less well-being than the uninjured controls. In addition, when compared with uninjured controls, the cardiovascular ANS responses to testing were significantly altered in participants with SCI; however, these responses to testing did not predict PASAT performance. Self-reported levels of anxiety were significantly related to PASAT score in the SCI group, but there was no significant relationship between PASAT and the other indices of SCI-Quality of Life. Future investigations should more closely examine the relationship among cardiovascular ANS impairments, psychological disorders, and cognitive dysfunction to better elucidate the underpinnings of these deficits and to guide interventions aimed at improving physiological, psychological, and cognitive health after SCI. Tetraplegia, paraplegia, blood pressure variability, cognitive, mood.

Fatigue After Traumatic Brain Injury: A Systematic Review

OBJECTIVE

To provide a systematic review of published interventions for posttraumatic brain injury fatigue (PTBIF).

METHODS

PubMed and OneSearch were systematically searched for PTBIF interventions published between January 1, 1989, and March 31, 2019. Search results were evaluated for inclusion based on an abstract and full-text review. Inclusion criteria were (1) an investigation of an intervention, (2) participant sample including individuals with traumatic brain injury (TBI), (3) report of fatigue outcome data among individuals with TBI, and (4) articles available in English, Spanish, French, German, Afrikaans, or Dutch. A risk of bias assessment was conducted on all included publications.

RESULTS

The search resulted in 2343 publications, with 37 meeting inclusion criteria for this review. Categories of PTBIF interventions were pharmacological ( n = 13), psychological ( n = 9), exercise-based ( n = 4), complementary alternative medicine ( n = 5), electrotherapeutic ( n = 3), and multimodal ( n = 3). Only methylphenidate, modafinil, and cognitive behavioral therapy interventions included multiple cohorts. Pharmacological and psychological interventions represented the groups with the lowest risk of bias.

CONCLUSIONS

This review includes 37 studies, with 21 studies published after 2014. Methylphenidate and melatonin were the only pharmacological agents found to reduce fatigue in randomized controlled trials. Creatine given to children prospectively at onset of injury reduced fatigue at follow-up. Walking and water aerobics were effective exercise interventions in isolated randomized controlled studies. One multimodal study of children after concussion was more effective at reducing fatigue and postconcussion symptoms than community standard of care. Other interventions had equivocal results. Overall, more work remains to understand and develop treatments for PTBIF.

Responsiveness of the Traumatic Brain Injury Quality of Life Cognition Banks in Recent Brain Injury

Patient report of functioning is one component of the neurocognitive exam following traumatic brain injury, and standardized patient-reported outcomes measures are useful to track outcomes during rehabilitation. The Traumatic Brain Injury Quality of Life measurement system (TBI-QOL) is a TBI-specific extension of the PROMIS and Neuro-QoL measurement systems that includes 20 item banks across physical, emotional, social, and cognitive domains. Previous research has evaluated the responsiveness of the TBI-QOL measures in community-dwelling individuals and found clinically important change over a 6-month assessment interval in a sample of individuals who were on average 5 years post-injury. In the present study, we report on the responsiveness of the TBI-QOL Cognition–General Concerns and Executive Function item bank scores and the Cognitive Health Composite scores in a recently injured sample over a 1-year study period. Data from 128 participants with complicated mild, moderate, or severe TBI within the previous 6 months were evaluated. The majority of the sample was male, white, and non-Hispanic. The participants were 18–92 years of age and were first evaluated from 0 to 5 months post-injury. Eighty participants completed the 1-year follow-up assessment. Results show acceptable standard response mean values (0.47–0.51) for all measures and minimal detectable change values ranging from 8.2 to 8.8 T-score points for Cognition–General Concerns and Executive Functioning measures. Anchor rating analysis revealed that changes in scores on the Executive Function item bank and the Cognitive Health Composite were meaningfully associated with participant-reported changes in the areas of attention, multitasking, and memory. Evaluation of change score differences by a variety of clinical indicators demonstrated a small but significant difference in the three TBI-QOL change scores by TBI injury severity grouping. These results support the responsiveness of the TBI-QOL cognition measures in newly injured individuals and provides information on the minimal important differences for the TBI-QOL cognition measures, which can be used for score interpretation by clinicians and researchers seeking patient-reported outcome measures of self-reported cognitive QOL after TBI.

Cognitive Fatigue in Pediatric Traumatic Brain Injury: A Meta-Analysis and Scoping Review

OBJECTIVE

To review the evidence available on cognitive fatigue (ie, increase in mental exhaustion after prolonged cognitive activity) in childhood traumatic brain injury (TBI), including rates, associated factors and effects, and management strategies.

METHODS

A meta-analysis and scoping review of the literature were conducted following the PRISMA guidelines. Terms were searched in relevant databases and through hand-searching. Articles were included and excluded based on specific criteria and methods were evaluated for risk of bias.

RESULTS

Of 2579 initially eligible articles, 4 studies with 6 effect sizes (due to reporting of data by group in 2 studies) were included for a meta-analysis and 11 for a scoping review. Cognitive fatigue was a common symptom in children after TBI of varying severities and times post-injury. Few studies investigated factors or effects associated with cognitive fatigue, although emerging evidence indicates some relations with family and injury factors and postinjury functioning. Active rehabilitation was investigated by 2 studies and could be a safe management strategy for cognitive fatigue, but additional investigation is needed on this and other possible assessment and treatment approaches.

CONCLUSIONS

Cognitive fatigue is a common symptom in children who experience a TBI of any severity. Additional research is needed to determine the course of cognitive fatigue, elucidate the relations between cognitive fatigue and secondary factors, and to build clinically useful assessment and treatment methods.

Development of the TBI-QOL Headache Pain Item Bank and Short Form

OBJECTIVE

To develop, calibrate, and evaluate the test-retest reliability of a new patient-reported outcome measure of headache pain relevant for individuals with traumatic brain injury (TBI).

SETTING

Six TBI Model Systems rehabilitation centers in the United States.

PARTICIPANTS

Adults with medically confirmed documentation of TBI.

DESIGN

Cross-sectional calibration field testing and test-retest reliability analyses.

MAIN MEASURES

Traumatic Brain Injury-Quality of Life Headache Pain item bank.

RESULTS

Thirteen headache pain items were calibrated as a unidimensional measure using data from 590 participants. The new measure was reliable (α = .98; item-total correlation range: 0.71-0.91). Item parameter estimates were estimated using Samejima's Graded Response Model and a 10-item calibrated short form was created. Simulation testing confirmed that both the computer-adaptive test and the short-form administrations were equivalent to the full item bank. One- to-2-week test-retest reliability of the computer-adaptive test was high (Pearson r and intraclass correlation coefficients = 0.81). Approximately two-thirds of the sample reported at least 1 headache symptom.

CONCLUSION

The Traumatic Brain Injury-Quality of Life Headache Pain item bank and short form provide researchers and clinicians with reliable measures of the subjective experience of headache symptoms for individuals with a history of TBI.