What are the disruptive symptoms of behavioral disorders after traumatic brain injury? A systematic review leading to recommendations for good practices

Functional independence and agitation outcomes following inpatient rehabilitation after structural brain injury: A retrospective cohort study

The study's purpose was to analyze outcomes of patients with severe behavioural disturbances after acquired brain injury (ABI) in order to identify predictors of discharge destination from a specialized unit (SU) of a Swiss neurorehabilitation facility. Retrospective analysis of 85 patients. Potential predictors of the main outcome discharge destination were assessed with a correlation analysis. The Agitation Behaviour Scale (ABS), Functional Independence Measure (FIM), length of stay (LOS) and pre-living situation were tested in a logistic regression analysis. Twenty-nine patients were institutionalized and 56 patients went home. Discharge destination was significantly correlated to ABS score at discharge from SU (rs = -.33, p = .002), total FIM score on admission to the SU (rs = .25, p = .022), total FIM score at discharge from the SU (rs = .37, p < .001), LOS at the SU (rs = -.36, p = .001), and LOS after discharge of the SU (rs = .36, p = .001). Multivariate analysis showed that FIM scores at discharge (OR = 1.03, p = .008), and LOS at SU (OR = 0.98, p = .017) predicted discharge destination significantly. FIM or LOS may be important predictors in planning discharge destination in patients with severe behavioural disturbances. Further prospective studies are critically needed to better understand the complexity of interactions amongst important predictive factors.

Value-consistent rehabilitation is associated with long-term psychological flexibility and quality of life after traumatic brain injury

Meaningful steps have been taken toward using holistic approaches in outpatient rehabilitation for traumatic brain injury (TBI) (i.e., treating the whole individual); however, research and practice continue to disproportionately focus on adapting to physical and cognitive changes. Research suggests treatment focusing on individual values may be important for psychological adjustment after TBI. The current study sought to explore individual values across multiple life domains in those with TBI as well as what values outpatient rehabilitation was helpful for, and to examine discrepancies between these factors (i.e., value-consistent rehabilitation) in relation to important long-term treatment outcomes. 215 adults with a history of TBI who had participated in outpatient rehabilitation completed online surveys assessing how consistent outpatient rehabilitation was with individual values, psychological flexibility, and quality of life. The life domains with the greatest discrepancies between individual importance and rehabilitation helpfulness were spirituality, intimate relations, and family relations. Greater value-consistent rehabilitation was associated with higher levels of psychological flexibility and quality of life beyond demographics and injury characteristics. Our findings provide further support in favour of holistic, client-centred approaches that are facilitated by neurological rehabilitation programs.

Assessing the benefits and risks of amantadine for irritability and aggression after traumatic brain injury

OBJECTIVE

To quantify the benefits versus harms of amantadine in the treatment of irritability and aggression following traumatic brain injury.

METHODS

Secondary outcome data from a randomized controlled multisite trial of amantadine 100 mg twice daily were used to calculate number-needed-to-treat (NNT). Given prior findings of positive clinician-perceived effects and low incidence of adverse events, we hypothesized low number-needed-to-treat for benefit (NNTB; high benefit) and high number-needed-to-treat for harm (NNTH; low risk) based on the clinician ratings, supporting the use of amantadine in clinical practice. Specifically, NNTB values were calculated using number of individuals with improvement on the Clinician Global Impressions-Global Improvement scale (GI). NNTH values were computed using number of individuals with worsening on the GI and experiencing serious and any adverse events.

RESULTS

Based on clinician ratings, on average for every six patients treated with amantadine rather than placebo, one extra patient would be expected to improve (NNTB = 6.4; 95% confidence interval [CI]: [3.3-76.8]). More participants in the placebo group worsened than in the amantadine group, but the result was not statistically significant (NNTH = -92.4; 95% CI: [NNTB -32.9 to infinity to NNTH -19.2]). The amantadine and placebo groups did not differ on the numbers of adverse events experienced during the trial.

CONCLUSION

Clinician ratings suggest modest benefit of amantadine 100 mg twice daily with low risk to appropriately selected patients with adequate renal clearance. Thus, amantadine should be considered a treatment option for the experienced brain injury clinician. These data may support treatment decisions when a pharmaceutical agent is being considered to control irritability/aggression.

A literature review of outcome and treatment options after acquired brain injury: Suggestions for adult offenders using knowledge from the general population

BACKGROUND

Acquired brain injury (ABI) is a major health problem, often with negative effects on behaviour and mental health as well as cognition. Prevalence of ABI is exceptionally high among offenders and increases their re-offending risk. Information on risk factors for ABI and its outcomes among offenders that could guide effective treatment for them is, nevertheless, scarce and dispersed. However, there is a more substantial literature about the general population that could inform work with brain-injured offenders, especially when selecting for samples or subgroups with similar relevant characteristics, such as lower socio-economic status (SES), pre-injury lower tested intelligence score (<85) and pre-injury mental health problems.

AIMS

To explore brain injury data from non-offender samples of otherwise similar socio-economic and mental health and ability characteristics to offenders then, first, to describe their untreated outcomes and, secondly, outcomes after frequently used interventions in these circumstances, noting factors associated with their effectiveness.

METHOD

Three databases were systematically searched for the years 2010-2022; first, using terms for brain injury or damage and cognitive (dys)function, mental health or quality of life. Second, in a separate search, we used these terms and terms for interventions and rehabilitation. In the second review, studies were selected for clear, distinguishable data on age, sex, SES and lifestyle factors to facilitate inferences for offenders. A narrative analytical approach was adopted for both reviews.

RESULTS

Samples with characteristics that are typical in offender groups, including lower SES, lower pre-injury intelligence quotient (<85), prior cognitive impairments and prior mental health problems, had poorer cognitive and behavioural outcomes following ABI than those without such additional problems, together with lower treatment adherence. With respect to treatment, adequate motivation and self-awareness were associated with better cognitive and behavioural outcomes than when these were low or absent, regardless of the outcome measured.

CONCLUSIONS

More complex pre-injury mental health problems and social disadvantages typical of offenders are associated with poorer post-brain injury recovery. This paper adds to practical knowledge by bringing together work that follows specific outcome trajectories. Overall, succesful ABI-interventions in the general population that aim at pre-injury difficulties comparable to those seen among offenders, show that personalising injury-specific treatments and taking account of these difficulties, maximised positive outcomes.

Process evaluation of the implementation of the ABC method, an intervention for nurses dealing with challenging behaviour of patients with brain injury

BACKGROUND

Introducing new working methods is common in healthcare organisations. However, implementation of a new method is often suboptimal. This reduces the effectiveness of the innovation and has several other negative effects, for example on staff turnover. The aim of the current study was to implement the ABC method in residential departments for brain injured patients and to assess the quality of the implementation process. The ABC method is a simplified form of behavioural modification based on the concept that behaviour operates on the environment and is maintained by its consequences.

METHODS

Four residential departments for brain injured patients introduced the ABC method sequentially as healthcare innovation using a stepped-wedge design. A systematic process evaluation of the implementation was carried out using the framework of Saunders et al. Descriptive statistics were used to analyse the quantitative data; open questions were clustered.

RESULTS

The training of the ABC method was well executed and the nursing staff was enthusiastic and sufficiently involved. Important aspects for successful implementation had been addressed (like a detailed implementation plan and implementation meetings). However, facilitators and barriers that were noted were not addressed in a timely manner. This negatively influenced the extent to which the ABC method could be properly learned, implemented, and applied in the short and long term.

CONCLUSIONS

The most challenging part of the introduction of this new trained and introduced method in health care was clearly the implementation. To have a successful implementation serious attention is needed to tailor-made evidence-based implementation strategies based on facilitators and barriers that are identified during the implementation process. Bottlenecks in working with the ABC method have to be addressed as soon as possible. This likely requires 'champions' who are trained for the job, next to an organisation's management that facilitates the multidisciplinary teams and provides clarity about policy and agreements regarding the training and implementation of the new method. The current process evaluation and the recommendations may serve as an example for the implementation of new methods in other healthcare organisations.

Emotional, Behavioral, and Cognitive Symptom Associations With Community Participation in Chronic Traumatic Brain Injury

OBJECTIVES

To determine the association between self-reported emotional and cognitive symptoms and participation outcomes in chronic traumatic brain injury (TBI) and to explore the relative contribution of self-reported versus performance-based cognition to participation outcomes.

SETTING

Community.

PARTICIPANTS

Community-dwelling adults ( n = 135) with a lifetime history of mild to severe TBI.

DESIGN

Secondary analysis of a cross-sectional study on neurobehavioral symptoms in chronic TBI.

MAIN MEASURES

Behavioral Assessment Screening Tool (BAST) (Negative Affect, Fatigue, Executive Dysfunction, Impulsivity, Substance Abuse subscales) measured self-reported neurobehavioral symptoms; Participation Assessment with Recombined Tools (Productivity, Social Relations, and Out and About) measured self-reported participation outcomes; and Brief Test of Adult Cognition by Telephone (BTACT) measured performance-based cognition (Episodic Memory and Executive Function summary scores) in a subsample ( n = 40).

RESULTS

The BAST Executive Dysfunction was significantly associated with less frequent participation and had the strongest effect on participation in all participation domains. No other BAST subscales were associated with participation, after adjusting for all subscale scores and age, with the exception of BAST Impulsivity, which was associated with more frequent Social Relationships. Exploratory analysis in the sample including the BTACT revealed that, after accounting for subjective Executive Dysfunction using the BAST, performance-based Executive Function was associated with Productivity and Working Memory was associated with Social Relations, but neither was associated with being Out and About; the BAST Executive Dysfunction remained significant in all models even after including BTACT scores.

CONCLUSIONS

Self-reported Executive Dysfunction contributed to participation outcomes after mild to severe TBI in community-dwelling adults, whereas self-reported emotional and fatigue symptoms did not. Performance-based cognition measures may capture different variability in participation after injury.

Disinhibited and angry: Investigating the relationship between social disinhibition and the components of aggression following severe TBI

Social disinhibition and aggression share many similarities. But unlike with aggression, research evidence about social disinhibition following severe traumatic brain injury (TBI) is limited and treatments are missing. Establishing the association between aggression and social disinhibition would facilitate a better conceptualization of these disorders. This study aimed to determine the relationship between social disinhibition and aggression following severe TBI.In this case-control study, 25 individuals with severe TBI and 25 control participants completed the Buss-Perry Aggression Questionnaire (BPAQ), Frontal Systems Behaviour Scale (FrSBe), and Social Disinhibition Interview (SDI).Hierarchical multiple regression analyses revealed that, when controlling for covariates, the inclusion of BPAQ Anger in the model led to a 13% increase in proportion of explained variance of social disinhibition (Adjusted R2 increased from .243 to .363, p < .005). BPAQ Anger was not a significant predictor of SDI scores. Similarly, BPAQ Physical aggression scores did not contribute to the prediction of FrSBe Disinhibition or SDI scores.In conclusion, higher levels of self-reported anger (but no other components of aggression) are associated with higher levels of self-reported social disinhibition. While these findings have potential implications for the treatment of social disinhibition, further research into the possible relationship with aggression should be conducted.

An exploratory study of dialectical behaviour therapy for emotional dysregulation and challenging behaviours after acquired brain injury

BACKGROUND

Challenging behaviours and emotional dysregulation are common sequelae of acquired brain injury (ABI), but treatment remain underdeveloped. Dialectical behaviour therapy is an evidence-based therapy for emotional dysregulation.

OBJECTIVE

To explore the feasibility and preliminary efficacy of dialectical behaviour therapy for ABI.

METHODS

An exploratory longitudinal study that compared thirty adults with brain injury presenting persistent emotion dysregulation or challenging behaviours. Control group received a personalized multidisciplinary program only (n = 13). The dialectical behaviour therapy group received five months of emotion regulation skills learning as an add-on (n = 17). Preliminary efficacy was measured on Difficulties in Emotion Regulation Scale-16 and Quality of Life after Brain Injury total score and emotion subscore.

RESULTS

Fourteen participants completed the dialectical behaviour therapy. This study provided preliminary evidence for the feasibility and acceptability of dialectical behaviour therapy. Repeated measures revealed improvement on the Difficulties in Emotion Regulation Scale-16 (-7.6 [-17.3; 1.7]; Pr = 0.95) and on the Quality Of Life emotion subscore (13.5 [-3.8; 30.9]; Pr = 0.94).

CONCLUSION

This study raises important questions regarding the type of patients who can benefit from this intervention, necessary adaptations of dialectical behaviour therapy and the way it can help post-traumatic growth and identity reconstruction after ABI.

Traumatic brain injury and mental health outcomes among recently incarcerated men

This study examined the association between experiencing a traumatic brain injury (TBI) before or during incarceration and several postrelease negative mental health consequences in a cohort of men recently released from prison. The goal of the study was to explicate the variety of mental health-related issues incurring a TBI has on one's ability to successfully reintegrate back into society following incarceration. Using data from the LoneStar Project, we used ordinary least squares regression and logistic regression to assess the prevalence of depressive symptoms, stress, trauma flashbacks, and psychosis in a representative sample of men released from Texas prisons (N = 498) approximately 9 months post-prison release. Recently released men with a history of head injury exhibited higher levels of depression, B = 0.204, 95% CI [.071, .337]; stress, B = 0.266, 95% CI [.116, .416]; experiencing trauma-related flashbacks, odds ratio (OR) = 2.950, 95% CI [1.740, 5.001]; and psychosis, OR = 3.093, 95% CI [1.601, 5.975], compared to their non-head-injured counterparts. TBIs-whether sustained before or during incarceration-pose significant risks for adverse mental health outcomes, particularly for recently released individuals during the already challenging and strained period of reintegration.

Behavioral and Psychiatric Symptoms in Patients with Severe Traumatic Brain Injury: A Comprehensive Overview

Traumatic brain injury (TBI) is defined as an altered brain structure or function produced by an external force. Adults surviving moderate and severe TBI often experience long-lasting neuropsychological and neuropsychiatric disorders (NPS). NPS can occur as primary psychiatric complications or could be an exacerbation of pre-existing compensated conditions. It has been shown that changes in behavior following moderate to severe TBI have a prevalence rate of 25-88%, depending on the methodology used by the different studies. Most of current literature has found that cognitive behavioral and emotional deficit following TBI occurs within the first six months whereas after 1-2 years the condition becomes stable. Identifying the risk factors for poor outcome is the first step to reduce the sequelae. Patients with TBI have an adjusted relative risk of developing any NPS several-fold higher than in the general population after six months of moderate-severe TBI. All NPS features of an individual's life, including social, working, and familiar relationships, may be affected by the injury, with negative consequences on quality of life. This overview aims to investigate the most frequent psychiatric, behavioral, and emotional symptoms in patients suffering from TBI as to improve the clinical practice and tailor a more specific rehabilitation training.

Prediction of voluntary movements of the upper extremities by resting state-brain regional glucose metabolism in patients with chronic severe brain injury: A pilot study

Confirmation of the exact voluntary movements of patients with disorder of consciousness following severe traumatic brain injury (TBI) is difficult because of the associated communication disturbances. In this pilot study, we investigated whether regional brain glucose metabolism assessed by ¹⁸ F-fluorodeoxyglucose positron emission tomography (FDG-PET) at rest could predict voluntary movement in severe TBI patients, particularly those with sufficient upper limb capacity to use communication devices. We visually and verbally instructed patients to clasp or open their hands. After video capture, three independent rehabilitation therapists determined whether the patients' movements were voluntary or involuntary. The results were compared with the standardized uptake value in the primary motor cortex, referring to the Penfield's homunculus, by resting state by FDG-PET imaged 1 year prior. Results showed that glucose uptake in the left (p = 0.0015) and right (p = 0.0121) proximal limb of the primary motor cortex, based on Penfield's homunculus on cerebral cartography, may reflect contralateral voluntary movement. Receiver operating characteristic curve analysis showed that a mean cutoff standardized uptake value of 5.47 ± 0.08 provided the best sensitivity and specificity for differentiating between voluntary and involuntary movements in each area. FDG-PET may be a useful and robust biomarker for predicting long-term recovery of motor function in severe TBI patients with disorders of consciousness.

Physiological reactivity at rest and in response to social or emotional stimuli after a traumatic brain injury: A systematic review

Numerous studies have shown that alterations in physiological reactivity (PR) after traumatic brain injury (TBI) are possibly associated with emotional deficits. We conducted a systematic review of these studies that evaluated PR in adults with moderate-to-severe TBI, either at rest or in response to emotional, stressful, or social stimuli. We focused on the most common measures of physiological response, including heart rate (HR), heart rate variability (HRV), respiratory sinus arrhythmia (RSA), electrodermal activity (EDA), salivary cortisol, facial electromyography (EMG), and blink reflex.

Methods

A systematic literature search was conducted across six databases (PsycINFO, Psycarticles, SciencDirect, Cochrane Library, PubMed, and Scopus). The search returned 286 articles and 18 studies met the inclusion criteria.

Results

Discrepancies were observed according to the type of physiological measure. Reduced physiological responses in patients with TBI have been reported in most EDA studies, which were also overrepresented in the review. In terms of facial EMG, patients with TBI appear to exhibit reduced activity of the corrugator muscle and diminished blink reflex, while in most studies, zygomaticus contraction did not show significant differences between TBI and controls. Interestingly, most studies measuring cardiac activity did not find significant differences between TBI and controls. Finally, one study measured salivary cortisol levels and reported no difference between patients with TBI and controls.

Conclusion

Although disturbed EDA responses were frequently reported in patients with TBI, other measures did not consistently indicate an impairment in PR. These discrepancies could be due to the lesion pattern resulting from TBI, which could affect the PR to aversive stimuli. In addition, methodological differences concerning the measurements and their standardization as well as the characteristics of the patients may also be involved in these discrepancies. We propose methodological recommendations for the use of multiple and simultaneous PR measurements and standardization. Future research should converge toward a common methodology in terms of physiological data analysis to improve inter-study comparisons.

Rehabilitation for Impaired Attention in the Acute and Post-Acute Phase After Traumatic Brain Injury: A Narrative Review

Impaired attention is the most common and debilitating cognitive deficit following a traumatic brain injury (TBI). Attention is a fundamental function that profoundly influences the performance of other cognitive components such as memory and execution. Intriguingly, attention can be improved through cognitive rehabilitation. This narrative review summarizes the essential elements of rehabilitation for attention problems in acute and post-acute TBI. In the acute phase of mild TBI, investigations into the medical history and daily life performance, neurological examination, screening and management of concomitant sleep-wake disorders or neuropsychiatric disorders, and support and education on the natural course of concussion are covered. Rehabilitation for patients with moderate-to-severe TBI consists of serial assessment for patients with disorders of consciousness and a post-traumatic confusion state. In the post-acute phase after TBI, components of rehabilitation include investigating medical history; neurological, imaging, and electrophysiological tests; evaluation and treatment of factors that may impact attention, including sleep-wake, emotional, and behavioral disorders; evaluation of attention function; and cognitive rehabilitation as a matter of course. We summarized metacognitive strategy, direct attention training, computer-based cognitive interventions, medication, and environmental control as interventions to enhance attention.

Measuring long-term outcomes after injury: current issues and future directions

Maximizing long-term outcomes for patients following injury is the next challenge in the delivery of patient-centered trauma care. The following review outlines three important components in trauma outcomes: (1) data gathering and monitoring, (2) the impact of traumatic brain injury, and (3) trajectories in recovery and identifies knowledge gaps and areas for needed future research.

Traumatic Brain Injury Induced Secondary Psychosis in a Young African American Male

Traumatic brain injury (TBI) is an intricate process in which the chemical balance and physical structure of the brain are altered. This medical condition's effects range from altered mental status to an irreversible comatose state, and in severe cases even death. TBI affects millions of individuals worldwide on an annual basis. In the United States, approximately 2.87 million TBI-related emergency department (ED) visits were reported in 2014, and nearly 43% of these cases will experience long-term disabilities. These disabilities have both short- and long-term consequences on health, ranging from physical, emotional, and psychosocial changes in an individual. The goal of this case report is to highlight the morbidity of patients with TBI, with a key focus on TBI-induced secondary psychosis. While many patients recover from their symptoms of TBI within weeks to months, a subdivision of patients with TBI has permanent damage that will significantly affect the quality of their daily lives. TBI-induced secondary psychosis is the new onset of psychosis that can comprise visual, auditory, and tactile hallucinations, delusions, and disorganized thoughts. In this case report, the patient is a 22-year-old African American male who suffered a TBI at the age of 16. Prior to the patient's TBI sustained in 2016, the patient did not have a hospital record of past psychiatric illness. In addition, the patient's family history did not show evidence of schizophrenia, bipolar, or depression in close or distant relatives. The patient presented to the ED for a psychiatric evaluation due to psychotic behavior. In this case report, we will discuss the pathogenesis, clinical presentation, and other secondary causes of TBI-induced secondary psychosis.

Using the St Andrew's - Swansea Neurobehavioural Outcome Scale (SASNOS) to determine prevalence and predictors of neurobehavioural disability amongst survivors with traumatic brain injury in the community

Studies using the St Andrew's - Swansea Neurobehavioural Outcome Scale (SASNOS) confirm neurobehavioural disability (NBD) is highly prevalent in inpatient Neurobehavioural Rehabilitation and Stroke samples. However, a recent study amongst a Danish community sample of acquired brain injury survivors found a relative paucity of NBD symptoms; and when symptoms were present, they tended to be of mild severity. The current observational study employed the SASNOS to explore prevalence of NBD in survivors with traumatic brain injury (TBI) living in the community, the extent of survivors' self-awareness of NBD symptoms, and constructed prediction models of NBD. A de-identified data set was compiled, comprising data for 97 TBI survivors (74.2% men, mean time since injury 2.8 years). In addition to SASNOS self- and proxy-ratings, various demographic, clinical and injury-related characteristics were captured. NBD was found to be highly characteristic, although severity varied depending on subtype. Statistical comparison of self- and proxy-ratings did not support reduced self awareness regarding NBD, whereas treating the problem as one of inter-rater reliability suggested this was an issue. Executive impairment, depressed mood and sex were especially prognostic of NBD. Reasons accounting for differences in NBD between the community samples are discussed and recommendations for future research made.

A Double-Blind Placebo-Controlled, Randomized Trial of Divalproex Sodium for Posttraumatic Irritability Greater Than 1 Year After Mild to Moderate Traumatic Brain Injury

OBJECTIVE

Posttraumatic irritability after traumatic brain injury (TBI) may become a chronic problem and contribute to impaired everyday function, either alone or in combination with alcohol use disorder. The authors hypothesized that divalproex sodium (VPA) would improve posttraumatic irritability and result in lessened alcohol use.

METHODS

This randomized, placebo-controlled double-blind clinical trial recruited participants with an index TBI occurring 1 or more years prior to enrollment, a history of alcohol use disorder, and posttraumatic irritability corroborated by a knowledgeable informant. An 8-item subset of the Agitated Behavior Scale served as the primary outcome measure of VPA efficacy. Doses of VPA were titrated to standard serum concentrations of 50 µg/ml to 100 µg/ml.

RESULTS

Forty-eight persons completed this clinical trial (VPA, N=22; placebo, N=26). At baseline, participants rated their posttraumatic irritability as less severe than did their informants (p<0.05). During the trial, informants reported significant and sustained reduction of posttraumatic irritability (p=0.03) in the study participants. Biweekly averages during drug exposure confirmed this (p<0.03, Cohen's d=0.44). Treatment efficacy was not related to measures of anxiety, posttraumatic stress disorder, sedation, or veteran versus nonveteran status. Alcohol use did not change as a result of treatment. There were no serious adverse events.

CONCLUSIONS

This study demonstrated an effect of VPA on posttraumatic irritability, and VPA was well tolerated. Further definition of treatment efficacy and safety requires a large-scale multisite trial, using a randomized, double-blind placebo-controlled design.

The relationship between cognition and vocational training outcome in patients with acquired brain injury: Contribution of Machine Learning

The aim of this study was to identify specific cognitive patterns related to long-term vocational training outcome. Records of twenty-eight patients who had benefited from a professional rehabilitation program were retrospectively processed. Screening through machine learning algorithms of patients' neuropsychological scores identified cognitive patterns related to both vocational training outcomes: succeeded or failed. These patterns were based on cognitive performance intervals even if the cognitive ability was not impaired. The cognitive pattern related to a successful vocational training included performance intervals on measures underlying verbal memory consolidation, visual memory incidental recall, problem solving and planning abilities. The cognitive pattern explaining failure of vocational training included performance intervals on tasks involving planning and problem solving abilities. From a comprehensive neuropsychological battery, memory and executive measures appeared to be the best attributes related to the vocational training outcome in patients with brain injury. Even with a cognitive functioning above the pathological cutoff, patients suffering from a brain injury could fail a vocational training. The attributes related to the vocational training outcome would be more a specific level of cognitive functioning rather than an interpretation of neuropsychological scores only based on a normal versus pathological distinction.

Prisoner knowledge about head injury is Improved by brief psychoeducation

INTRODUCTION

The high prevalence of head injury (HI) in prisoners and its association with offending indicates a need for interventions. However, there is little evidence and none for the effectiveness of psychoeducation in improving prisoner knowledge about HI and its effects.

METHODS

Small groups of males in two Scottish prisons underwent a 1 hour psychoeducation session delivered by PowerPoint and combined with question and answer, video clips and a booklet about HI. A pre-post intervention design was used to assess knowledge about HI from vignettes. Participants indicated effects of HI using unprompted free recall and then with a questionnaire (the Symptom Checklist; SCL), pre-education (n = 34), post-education (n = 19) and at 4-week follow-up (n = 11). Free recall was scored using symptom lists from national guidelines (FR-SIGN) or the SCL (FR-SCL). Within-subject comparisons were made between pre-intervention, post-intervention and follow-up scores.

RESULTS

Knowledge about HI significantly increased pre- to post-education for FR-SIGN (d = 0.91; 95% CI 0.62, 2.53) and FR-SCL (d = 0.99; 95% CI 0.95, 4.00) without decrement at follow-up (FR-SIGN d = 1.27; 95% CI 0.53, 2.56; FR-SCL r = 0.60). Scores on the SCL did not change over time (p > .05).

CONCLUSION

Prisoner knowledge about HI was improved by brief psychoeducation suitable for delivery in prisons.

Neuroimaging correlates of syndromal depression following traumatic brain injury: A systematic review of the literature

Objective

To complete a systematic review of the literature examining neuroimaging findings unique to co-occurring syndromal depression in the setting of TBI.

Methods

A PRISMA compliant literature search was conducted in PubMed (MEDLINE), PsychINFO, EMBASE, and Scopus databases for articles published prior to April of 2022. The database query yielded 4447 unique articles. These articles were narrowed based on specific inclusion criteria (e.g., clear TBI definition, clear depression construct commenting on the syndrome of major depressive disorder, conducted empirical analyses comparing neuroimaging correlates in TBI subjects with depression versus TBI subjects without depression, controlled for the time interval between TBI occurrence and acquisition of neuroimaging).

Results

A final cohort of 10 articles resulted, comprising the findings from 423 civilians with brain injury, 129 of which developed post-TBI depression. Four articles studied mild TBI, three mild/moderate, one moderate/severe, and two all-comers, with nine articles focusing on single TBI and one including both single and recurrent injuries. Spatially convergent structural abnormalities in individuals with TBI and co-occurring syndromal depression were identified primarily in bilateral frontal regions, particularly in those with damage to the left frontal lobe and prefrontal cortices, as well as temporal regions including bilateral temporal lobes, the left superior temporal gyrus, and bilateral hippocampi. Various parietal regions and the nucleus accumbens were also implicated. EEG studies showed supporting evidence of functional changes in frontal regions.

Conclusion

Additional inquiry with attention to TBI without depression control groups, consistent TBI definitions, previous TBI, clinically diagnosed syndromal depression, imaging timing post-injury, acute prospective design, functional neuroimaging, and well-defined neuroanatomical regions of interest is crucial to extrapolating finer discrepancies between primary and TBI-related depression.

Post-traumatic Stress Disorder after Severe Traumatic Brain Injury: A Systematic Review

OBJECTIVE

The review aimed to summarize the existing knowledge base regarding post-traumatic stress disorder after severe traumatic brain injury (TBI) and try to guide future research.

METHOD

Web of Science, Scopus, and PubMed databases were used to identify original studies that explored the relationship between severe TBI and post-traumatic stress disorder.

RESULTS

A total of 13 studies were included in the review. They have been examined in terms of potentially compatible and incompatible mechanisms, as well as of possible confounding factors in relation to the diagnosis of post-traumatic stress disorder after severe TBI.

CONCLUSION

Only a few studies in the literature have addressed the present topic; therefore, the prevalence of post-traumatic stress disorder in patients with severe TBI still needs to be further investigated. In particular, future studies should be conducted only in severe TBI populations, considering their premorbid personality characteristics and their reactivity alteration. They should also obtain an accurate and appropriate assessment of post-traumatic stress disorder with clinical interviews as well as clarifying the role of post-traumatic amnesia in this population by incorporating control groups of patients.

Carbamazepine for Irritability and Aggression after Traumatic Brain Injury: A Randomized, Placebo-Controlled Study

This study tested the hypothesis that carbamazepine (CBZ) reduces irritability/aggression among individuals >6 months post-traumatic brain injury (TBI). Seventy individuals were enrolled in a parallel-group, randomized, double-blind, placebo-controlled, forced-titration trial of CBZ (n = 35) versus placebo (n = 35). Participants were randomly assigned to receive CBZ or placebo 42 days with outcome assessed at baseline and Day 42. Dose was titrated up to 400 mg CBZ or placebo equivalent two times daily. Symptoms of irritability and aggression were measured using the Neuropsychiatric Inventory Irritability (NPI-I) and Aggression (NPI-A) domains as a composite measure (NPI-I/A). Global impression of change was recorded from participant, observer, and study clinician. The CBZ group did not differ significantly from the placebo group (p = 0.60 and 0.59 for NPI-I/A observer and participant ratings, respectively). High placebo effects were observed with minimal clinically important difference in observer NPI-I/A 57% in CBZ group and 77% in placebo group (p = 0.09). Findings were similar for participant ratings. Eighteen of 35 had therapeutic CBZ level ≥4. Therapeutic sample analysis revealed similar high placebo response and non-significant differences except clinician ratings favoring CBZ. Non-serious adverse events occurred more frequently in the CBZ group with greater nervous system effects. CBZ up to 400 mg two times daily was not superior to placebo at reducing irritability/aggression according observers and participants. Large placebo effects may have masked the detection of differences. Clinician rating metrics suggest benefit, and thus, CBZ should remain a treatment option for the experienced brain injury clinician. Data are provided that may aid treatment decisions.

Mental Fatigue after Mild Traumatic Brain Injury in Relation to Cognitive Tests and Brain Imaging Methods

Most people recover within months after a mild traumatic brain injury (TBI) or concussion, but some will suffer from long-term fatigue with a reduced quality of life and the inability to maintain their employment status or education. For many people, mental fatigue is one of the most distressing and long-lasting symptoms following an mTBI. No efficient treatment options can be offered. The best method for measuring fatigue today is with fatigue self-assessment scales, there being no objective clinical tests available for mental fatigue. The aim here is to provide a narrative review and identify fatigue in relation to cognitive tests and brain imaging methods. Suggestions for future research are presented.

Cognitive Telerehabilitation with Transcranial Direct Current Stimulation Improves Cognitive and Emotional Functioning Following a Traumatic Brain Injury: A Case Study

OBJECTIVE

Cognitive deficits following a traumatic brain injury (TBI) are a leading cause of disability in young adults and there is a critical need for novel approaches to improve cognitive outcomes in TBI survivors. Transcranial direct current stimulation (tDCS) paired with cognitive remediation has emerged as a viable, cost-effective, noninvasive approach for treating cognitive impairments in a wide variety of neurological conditions. Here, we report the first case study utilizing remotely supervised tDCS (RS-tDCS) protocol paired with cognitive remediation in a 29-year-old man with persisting cognitive and emotional sequelae following TBI.

METHOD

Neuropsychological measures were administered before and after the patient completed 20 daily sessions of RS-tDCS (2.0 mA × 20 minutes, left anodal dorsolateral prefrontal cortex montage). During the daily stimulation period, he completed adaptive cognitive training. All treatment procedures were delivered at home and monitored in real time via videoconference with a study technician.

RESULTS

Following 20 RS-tDCS and cognitive training sessions, he had significant improvements (>1 SD) on tests of attention and working memory, semantic fluency, and information processing speed. Mood was also improved.

CONCLUSIONS

This is the first demonstration of at-home telerehabilitation with RS-tDCS and cognitive training to improve cognitive outcomes following TBI.

Agitation Following Severe Traumatic Brain Injury Is a Clinical Sign of Recovery of Consciousness

Objective: Severe traumatic brain injury (sTBI) often results in disorders of consciousness. Patients emerging from coma frequently exhibit aberrant behaviors such as agitation. These non-purposeful combative behaviors can interfere with medical care. Interestingly, agitation is associated with arousal and is often among the first signs of neurological recovery. A better understanding of these behaviors may shed light on the mechanisms driving the return of consciousness in sTBI patients. This study aims to investigate the association between posttraumatic agitation and the recovery of consciousness.

Methods: A retrospective chart review was conducted in 530 adult patients (29.1% female) admitted to Stony Brook University Hospital between January 2011 and December 2019 with a diagnosis of sTBI and Glasgow Coma Scale (GCS) ≤8. Agitation was defined as a Richmond Agitation Sedation Scale (RASS) > +1, or any documentation of equivalently combative and violent behaviors in daily clinical notes. The ability to follow verbal commands was used to define the recovery of consciousness and was assessed daily.

Results: Of 530 total sTBI patients, 308 (58.1%) survived. Agitation was present in 169 of all patients and 162 (52.6%) of surviving patients. A total of 273 patients followed commands, and 159 of them developed agitation. Forty patients developed agitation on hospital arrival whereas 119 developed agitation later during their hospital course. Presence of in-hospital agitation positively correlated with command-following (r = 0.315, p < 0.001). The time to develop agitation and time to follow commands showed positive correlation (r = 0.485, p < 0.001). These two events occurred within 3 days in 54 (44.6%) patients, within 7 days in 81 (67.8%) patients, and within 14 days in 96 (80.2%) patients. In 71 (59.7%) patients, agitation developed before command-following; in 36 (30.2%) patients, agitation developed after command-following; in 12 (10.1%) patients, agitation developed on the same day as command-following.

Conclusion: Posttraumatic agitation in comatose patients following sTBI is temporally associated with the recovery of consciousness. This behavior indicates the potential for recovery of higher neurological functioning. Further studies are required to identify neural correlates of posttraumatic agitation and recovery of consciousness after sTBI.

Hippocampal atrophy is associated with psychotic symptom severity following traumatic brain injury

Psychosis is a rare, but particularly serious sequela of traumatic brain injury. However, little is known as to the neurobiological processes that may contribute to its onset. Early evidence suggests that psychotic symptom development after traumatic brain injury may co-occur with hippocampal degeneration, invoking the possibility of a relationship. Particularly regarding the hippocampal head, these degenerative changes may lead to dysregulation in dopaminergic circuits, as is reported in psychoses due to schizophrenia, resulting in the positive symptom profile typically seen in post-injury psychosis. The objective of this study was to examine change in hippocampal volume and psychotic symptoms across time in a sample of moderate-to-severe traumatic brain injury patients. We hypothesized that hippocampal volume loss would be associated with increased psychotic symptom severity. From a database of n = 137 adult patients with prospectively collected, longitudinal imaging and neuropsychiatric outcomes, n = 24 had complete data at time points of interest (5 and 12 months post-traumatic brain injury) and showed increasing psychotic symptom severity on the Personality Assessment Inventory psychotic experiences subscale of the schizophrenia clinical scale across time. Secondary analysis employing stepwise regression with hippocampal volume change (independent variable) and Personality Assessment Inventory psychotic symptom change (dependent variable) from 5 to 12 months post-injury was conducted including age, sex, marijuana use, family history of schizophrenia, years of education and injury severity as control variables. Total right hippocampal volume loss predicted an increase in the Personality Assessment Inventory psychotic experiences subscale (F_{(1, 22)} = 5.396, adjusted R² = 0.161, P = 0.030; β = −0.017, 95% confidence interval = −0.018, −0.016) as did volume of the right hippocampal head (F_{(1, 22)} = 5.764, adjusted R² = 0.172, P = 0.025; β = −0.019, 95% confidence interval = −0.021, −0.017). Final model goodness-of-fit was confirmed using k-fold (k = 5) cross-validation. Consistent with our hypotheses, the current findings suggest that hippocampal degeneration in the chronic stages of moderate-to-severe traumatic brain injury may play a role in the delayed onset of psychotic symptoms after traumatic brain injury. These findings localized to the right hippocampal head are supportive of a proposed aetiological mechanism whereby atrophy of the hippocampal head may lead to the dysregulation of dopaminergic networks following traumatic brain injury; possibly accounting for observed clinical features of psychotic disorder after traumatic brain injury (including prolonged latency period to symptom onset and predominance of positive symptoms). If further validated, these findings may bear important clinical implications for neurorehabilitative therapies following traumatic brain injury.

Effect of Housing First on violence-related traumatic brain injury in adults with experiences of homelessness and mental illness: findings from the At Home/Chez Soi randomised trial, Toronto site

OBJECTIVES

People experiencing homelessness have a high prevalence and incidence of traumatic brain injury (TBI) due to violence. Little is known about the effectiveness of interventions to reduce TBI in this population. This study assessed the effect of Housing First (HF) on violence-related TBI in adults with experiences of homelessness and mental illness.

DESIGN

Pragmatic randomised trial.

PARTICIPANTS

381 participants in the Toronto site of the At Home/Chez randomised trial.

INTERVENTION

HF participants were provided with scattered-site housing using rent supplements and supports from assertive community treatment or intensive case management teams (n=218, 57.2%). Control participants had access to treatment as usual (TAU) in the community (n=163, 42.8%).

MAIN OUTCOME MEASURES

Primary outcomes were an incident physical violence-related TBI event and the number of physical violence-related TBI events during the follow-up period (January 2014 to March 2017). Interval-censored survival time regression and zero-inflated negative binomial regression were used to assess the effect of HF on primary outcomes.

RESULTS

Among study participants, 9.2% (n=35) had an incident physical violence-related TBI event, and the mean physical violence-related TBI events was 0.16 (SD ±0.6). Compared with TAU participants, HF participants did not have a significantly lower risk of an incident violence-related TBI event (adjusted HR : 0.58 (95% CI, 0.29 to 1.14)), but they had a significantly lower number of physical violence-related TBI events (unadjusted incidence rate ratio (IRR): 0.22 (95% CI, 0.06 to 0.78); adjusted IRR: 0.15 (95% CI, 0.05 to 0.48)).

CONCLUSION

HF may be a useful intervention to reduce the burden of TBI due to physical violence among homeless individuals with mental illness.

TRIAL REGISTRATION NUMBER

ISRCTN42520374.

Efficacy and safety of amantadine as a treatment for apathy after brain injury: Two single-case experimental design studies

Studies on the efficacy of amantadine as a treatment for apathy after brain injury are scarce and of low quality. We examined the efficacy and safety of amantadine for treatment of apathy in two individuals with brain injury.Two double-blind, randomized, single-case experimental (baseline-amantadine-placebo-withdrawal) design (SCED) studies. Apathy measures included a Visual Analogue Scale (VAS), the Neuropsychiatric Inventory (NPI) apathy subscale and the Behavior Rating Inventory of Executive Function for Adults "Initiate" subscale. Safety measures included a rating scale of possible side effects of amantadine and physical examinations.No difference in apathy symptoms (VAS) between baseline and amantadine phase was found in case 1 (NAP = 0.55). Surprisingly, in case 2, apathy symptoms deteriorated from baseline to amantadine phase (NAP = 0.28, 90% CI = -0.69 to -0.20) and improved from amantadine to placebo phase (NAP = 0.92, 90% CI = 0.60-1.00). This improvement was also found on the NPI apathy subscale. Side effects of amantadine were observed in case 2.In this SCED study, amantadine did not improve apathy symptoms in two individuals with brain injury. However, this study shows that side effects of amantadine can occur which lead to a significant decrease in well-being. More high quality studies are required.

Traumatic brain injury and mood disorders

Traumatic brain injury is an increasing cause of morbidity worldwide. Neuropsychiatric impairments, such as behavioral dysregulation and depression, have significant impacts on recovery, functional outcomes, and quality of life of patients with traumatic brain injuries. Three patient cases, existing literature, and expert opinion are used to select pharmacotherapy for the treatment of target symptoms while balancing safety and tolerability.

Efficacy and Harms of Pharmacological Interventions for Anxiety after Traumatic Brain Injury: Systematic Review

After a traumatic brain injury (TBI), many persons experience significant and debilitating problems with anxiety. The aim of this systematic review was to critically evaluate the evidence regarding efficacy of pharmacological interventions for anxiety after TBI. We reviewed studies published in English before July 2020 and included original research on pharmacological interventions for anxiety after TBI in adults ≥16 years of age. MEDLINE, PubMed, CINAHL, EMBASE, PsycINFO, and CENTRAL databases were searched, with additional searching of key journals, clinical trials registries, and international drug regulators. The primary outcomes of interest were reduction in symptoms of anxiety and occurrence of harms. The secondary outcomes of interest were changes in depression, cognition, quality of life, and participation. Data were summarized in a narrative synthesis, and evidence quality was assessed using the Cochrane Risk of Bias tool. Only a single non-peer-reviewed, randomized controlled trial of 19 male military service members with mild TBI met inclusion criteria. This study found no significant effect of citalopram on anxiety symptoms over a 12-week intervention. The trial was stopped early because of poor recruitment, and much of the study detail was not included in the report. The methodological quality of the study was difficult to assess because of the lack of detail. No recommendations could be drawn from this review. There is a critical need for adequately powered and controlled studies of pharmacological interventions for anxiety after TBI across all severities that examine side-effect profiles and consider issues of comorbidity and effects of long-term pharmacotherapy.

A Cross-Sectional Study of Treatments for Behavioral Disorders Following Traumatic Brain Injury: Comparison With French Recommendations

OBJECTIVE

To give a cross-sectional overview of ongoing management of behavioral disorders following traumatic brain injury (TBI) in a region of France, to compare this with recent recommendations from the French Society of Physical Medicine and Rehabilitation (SOFMER), and to evaluate associations between treatments and participant characteristics.

SETTING

Outpatients referred to medical or community-based facilities in a region of France.

PARTICIPANTS

One hundred twenty-nine adults with moderate to severe TBI, in the postacute period (over 3 months postinjury).

DESIGN

Cross-sectional cohort study.

MAIN MEASURES

Sociodemographic data, ongoing interventions including psychotherapy and medication, behavioral disorders assessed by the Behavioral Dysexecutive Syndrome Inventory (BDSI).

RESULTS

Thirty-three percent of participants received ongoing psychotherapy and 43% were on medication. The most prescribed medications were antidepressants (21%), neuroleptics (18%), anxiolytics (16%), and mood stabilizers (14%). Eighty-five participants (71%) presented a current Behavioral Dysexecutive Syndrome (BDS) according to the BDSI. These participants more frequently received treatment (P = .004), psychotherapy (P = .048), medications (often 2 or more) (P = .007), and particularly antiepileptic mood stabilizers (P = .037) compared with those without BDS.

CONCLUSION

Although recommended as first-line treatment, few participants with BDS received psychotherapy. Medications were overused, especially neuroleptics in view of their potential adverse effects. In contrast, recommended medications, such as mood stabilizers and β-blockers, did not appear to be highly prescribed whatever the evolution. Compliance with recommendations seemed insufficient.

The Behavioral Neuroscience of Traumatic Brain Injury

Traumatic brain injury is a calamity of various causes, pathologies, and extremely varied and often complex clinical presentations. Because of its predilection for brain systems underlying cognitive and complex behavioral operations, it may cause chronic and severe psychiatric illness that requires expert management. This is more so for the modern epidemic of athletic and military brain injuries which are dominated by psychiatric symptoms. Past medical, including psychiatric, history, and comorbidities are important and relevant for formulation and management. Traumatic brain injury is a model for other neuropsychiatric disorders and may serve as an incubator of new ideas for neurodegenerative disease.

Supporting caregivers of veterans with Alzheimer's disease and traumatic brain injury: study protocol for a randomized controlled trial

Background

Patients with Alzheimer’s disease and related dementias (ADRD) and traumatic brain injury (TBI) and their caregivers require cognitive and behavioral symptom management, interdisciplinary care, support for caregivers, and seamless care coordination between providers. Caring for someone with ADRD or TBI is associated with higher rates of psychological morbidity and burden, social isolation, financial hardship, and deterioration of physical health. Tremendous need exists for primary care–based interventions that concurrently address the care needs of dyads and aim to improve care and outcomes for both individuals with ADRD and TBI and their family caregivers.

Methods

The Aging Brain Care Acquiring New Skills While Enhancing Remaining Strengths (ABC ANSWERS) study is a randomized controlled trial that tests the effectiveness of an intervention based on two evidence-based programs that have been developed for and previously tested in populations with ADRD, TBI, stroke, and late-life depression and/or who have survived an intensive care unit stay. This study includes 200 dyads comprised of a veteran with a diagnosis of ADRD or TBI and the veteran’s primary informal caregiver. Dyads are randomized to receive the ABC ANSWERS intervention or routine Veterans Health Administration (VHA) primary care with a standardized educational and resource information packet. Data collection occurs at baseline and three follow-up time points (3 months, 6 months, and 12 months). The primary outcome is caregiver quality of life (QoL). A secondary measure for the caregiver is caregiver burden. Secondary measures for both the veteran and caregiver include symptoms of depression and anxiety.

Discussion

The ABC ANSWERS intervention integrates common features of an evidence-based collaborative care model for brain health while concurrently attending to the implementation barriers of delivering care and skills to dyads. We hypothesize that caregivers in dyads randomized to the ABC ANSWERS program will experience higher levels of QoL and lower levels of depression, anxiety, dyadic strain, and caregiver burden at 12 months than those receiving usual VHA primary care.

Trial registration

ClinicalTrials.gov, NCT03397667. Registered on 12 January 2018.

The Spectrum of Long-Term Behavioral Disturbances and Provided Care After Traumatic Brain Injury

Introduction: Behavioral disturbances are found in 50–60% of traumatic brain injury (TBI) survivors with an enormous impact on daily functioning and level of recovery. However, whether typical profiles can be distinguished and how these relate to provided care is unclear. The purpose of this study is to specify the characteristics of behavioral disturbances in patients with various severity of TBI and the impact on functional outcome. Furthermore, the pathways of care after hospital discharge for patients and their care givers are analyzed.

Methods: We performed a retrospective cohort study comprising 226 patients with mild TBI (mTBI; n = 107) and moderate-to-severe TBI (mod/sevTBI; n = 119) treated at the outpatient clinic and/or rehabilitation center of our university hospital between 2010 and 2015. Inclusion criteria were: behavioral disturbances as determined with the Differential Outcome Scale and age ≥16 years. Functional outcome was determined by the Glasgow Outcome Scale Extended and return to work (RTW) at six months to one year post-injury. Behavioral impairments and pathway of care were derived from medical files and scored according to predefined criteria.

Results: Overall 24% of patients showed serious behavioral disturbances; three times higher in mod/sevTBI (35%) compared to mTBI (13%). mTBI patients mostly showed irritation (82%) and anger (49%), while mod/sevTBI patients mostly showed irritation (65%) and disinhibition (55%). Most (92%) patients returned home, half of the patients did not RTW. Deficits in judgment and decision-making increased risk of no RTW 10-fold. One in ten patients was (temporarily) admitted to a nursing home or psychiatric institution. 13% Of caregivers received support for dealing with impairments of patients and 13% of the mTBI and 17% of the mod/sevTBI patients experienced relational problems.

Conclusions: The spectrum of behavioral disturbances differs between TBI severity categories and serious behavioral disturbances are present in a quarter of patients. Only half of the patients resumed work regardless of severity of injury suggesting that particularly the presence and not the severity of long-term behavioral disturbances interferes with RTW. Most patients returned home despite these behavioral disturbances. These findings underline the importance of early identification and appropriate treatment of behavioral disturbances in TBI patients.

Self-reported traumatic brain injury during key developmental stages: examining its effect on co-occurring psychological symptoms in an adjudicated sample

Primary Objective: Prior research has demonstrated that traumatic brain injury (TBI) is associated with individual psychological symptoms. These findings, however, may not pertain to the influence of TBI during key developmental stages on the co-occurrence of negative psychological symptoms.Research Design: It was hypothesized that (H1) self-reported TBI is associated with adverse psychological effects, that (H2) self-reported TBI during adolescences is associated with both immediate and delayed adverse psychological effects, and finally, (H3) self-reported TBI during the early stages of adulthood is not associated with immediate psychological effects.Methods and Procedures: The current study employed a sample of adjudicated youth (N: 419 to 562) and structural equation modeling to estimate the association between self-reported TBI and subsequent adverse psychological effects.Results: Findings suggested that higher levels of self-reported TBI during adolescence were associated with higher levels of adverse psychological effects. These effects were both immediate and delayed. However, higher levels of self-reported TBI during adulthood were not associated with immediate adverse psychological effects.Conclusion: Overall, the findings suggest that deleterious outcomes related to self-reported TBI during key developmental stages include proximal and long-term adverse psychological effects.

Biopsychosocial outcome indicators in traumatic brain injuries

BACKGROUND

Traumatic brain injury (TBI) remains a silent and global epidemic which creates an aftermath of convoluted dynamics. Despite significant incidence rates and increasing awareness over the long-term catastrophic implications, there remain marked contrasts between acute vs. post-acute rehabilitation processes in the United States.

OBJECTIVE

To explore existing research and highlight the complexity of TBIs to inform vital changes needed to reduce the significant differences and inconsistencies across post-acute treatment settings. To highlight how psychologists/neuropsychologists and other rehabilitation professionals maintain a prominent operational presence in post-acute settings resulting in key leadership opportunities to support a more efficient longitudinal continuation of care model.

METHODS

Literature search of various health science databases was completed for articles between 1987 to 2019 to explore the range and depth of post-acute treatment, model, and outcomes research.

RESULTS

Despite progressive medical advancements, translation of relevant rehabilitation research and practices into post-acute treatment settings remains inconsistent.

CONCLUSIONS

Significant barriers remain for objective and comprehensive evaluation(s) of post-acute program quality and purported patient outcomes in the United States. There remains a lack of consensually relevant and objective metrics. Further investigation is recommended for: consensus on longitudinal post-acute brain injury outcome measures; functional relevance of program accreditations/certifications; outcome differences based on team composition and program resources; and patient/stakeholder variables/input to support optimal post-acute service access and delivery.

The Efficacy and Harms of Pharmacological Interventions for Aggression After Traumatic Brain Injury-Systematic Review

Background: Aggression is a commonly reported problem following traumatic brain injury (TBI). It may present as verbal insults or outbursts, physical assaults, and/or property destruction. Aggressive behavior can fracture relationships and impede participation in treatment as well as a broad range of vocational and social activities, thereby reducing the individual's quality of life. Pharmacological intervention is frequently used to control aggression following TBI. The aim of this systematic review was to critically evaluate the evidence regarding efficacy of pharmacological interventions for aggression following TBI in adults.

Methods: We reviewed studies in English, available before December 2018. MEDLINE, PubMed, CINAHL, EMBASE, PsycINFO, and CENTRAL databases were searched, with additional searching of key journals, clinical trials registries, and international drug regulators. The primary outcomes of interest were reduction in the severity of aggression and occurrence of harms. The secondary outcomes of interest were changes in quality of life, participation, psychological health (e.g., depression, anxiety), and cognitive function. Evidence quality was assessed using the Cochrane Risk of Bias tool and the Joanna Briggs Institute Critical Appraisal Instruments.

Results: Ten studies were identified, including five randomized controlled trials (RCTs) and five case series. There were positive, albeit mixed, findings for the RCTs examining the use of amantadine in reducing irritability (n = 2) and aggression (n = 2). There were some positive findings favoring methylphenidate in reducing anger (n = 1). The evidence for propranolol was weak (n = 1). Individual analysis revealed differential drug response across individuals for both methylphenidate and propranolol. The less rigorous studies administered carbamazepine (n = 2), valproic acid (n = 1), quetiapine (n = 1), and sertraline (n = 1), and all reported reductions in aggression. However, given the lack of a control group, it is difficult to discern treatment effects from natural change over time.

Conclusions: This review concludes that a recommendation for use of amantadine to treat aggression and irritability in adults following TBI is appropriate. However, there is a need for further well-designed, adequately powered and controlled studies of pharmacological interventions for aggression following TBI.

A comparison of patients managed in specialist versus non-specialist inpatient rehabilitation units in Australia

Aim: To compare the rehabilitation of patients with brain and spinal cord injury in specialist rehabilitation units and non-specialist rehabilitation units in Australia over a 10-year period.Method: A retrospective cohort study design was used. Epidemiological descriptive analysis was used to examine inpatient rehabilitation data held in the Australasian Rehabilitation Outcomes Centre Registry Database at four discrete time points: 2007, 2010, 2013 and 2016. Data sets included patient demographics, length of stay and the Functional Independence Measure. Data sets were examined for differences between specialist and non-specialist rehabilitation units.Results: Over the 10-year study period, compared to patients admitted to non-specialist rehabilitation units patients admitted to specialist rehabilitation units: (1) were younger and more likely to be male; (2) had a longer time between onset of illness/injury and rehabilitation admission; (3) had a longer median rehabilitation length of stay; (4) had a higher burden of care on admission to rehabilitation; however (5) had a greater functional gain. Patients in specialist rehabilitation units had a lower relative functional efficiency per day of rehabilitation, but higher percentage of Functional Independence Measure gain. In 2016, 66% of brain injury and 51% of spinal cord injury patients were not rehabilitated in specialist rehabilitation units.Conclusion: There are differences in the characteristics of patients admitted to specialist versus non-specialist rehabilitation units. Patients admitted to specialist rehabilitation units have greater functional gain. A noteworthy proportion of brain and spinal cord injury patients are not being rehabilitated in specialist rehabilitation units, particularly patients with non-traumatic injuries.Implications for rehabilitationPatients with a brain or spinal cord injury rehabilitated in specialist rehabilitation units achieve a greater functional gain than those in non-specialist units.Development of best practice admission guidelines would better enable the right care for the right patient in the right setting at the right time.There is a need for longitudinal examination of patient outcomes to better understand the long-term benefits of being rehabilitated in specialist rehabilitation units compared to non-specialist rehabilitation units.

Psychopharmacology of traumatic brain injury

The pathophysiology of traumatic brain injury (TBI) can be highly variable, involving functional and/or structural damage to multiple neuroanatomical networks and neurotransmitter systems. This wide-ranging potential for physiologic injury is reflected in the diversity of neurobehavioral and neurocognitive symptoms following TBI. Here, we aim to provide a succinct, clinically relevant, up-to-date review on psychopharmacology for the most common sequelae of TBI in the postacute to chronic period. Specifically, treatment for neurobehavioral symptoms (depression, mania, anxiety, agitation/irritability, psychosis, pseudobulbar affect, and apathy) and neurocognitive symptoms (processing speed, attention, memory, executive dysfunction) will be discussed. Treatment recommendations will reflect general clinical practice patterns and the research literature.

Clinical characteristics of patients with bipolar disorder and premorbid traumatic brain injury: a cross-sectional study

BACKGROUND

About one in ten diagnosed with bipolar disorder (BD) has experienced a premorbid traumatic brain injury (TBI), while not fulfilling the criteria of bipolar and related disorder due to another medical condition (BD due to TBI). We investigated whether these patients have similar clinical characteristics as previously described in BD due to TBI (i.e. more aggression and irritability and an increased hypomania/mania:depression ratio) and other distinct clinical characteristics.

METHODS

Five hundred five patients diagnosed with BD type I, type II, or not otherwise specified, or cyclothymia were interviewed about family, medical, and psychiatric history, and assessed with the Young Mania Rating Scale (YMRS) and the Inventory of Depressive Symptoms Clinician Rated 30 (IDS-C₃₀). Principal component analyses of YMRS and IDS-C₃₀ were conducted. Bivariate analyses and logistic regression analyses were used to compare clinical characteristics between patients with (n = 37) and without (n = 468) premorbid TBI.

RESULTS

Premorbid TBI was associated with a higher YMRS disruptive component score (OR 1.7, 95% CI 1.1-2.4, p = 0.0077) and more comorbid migraine (OR 4.6, 95% CI 1.9-11, p = 0.00090) independently of several possible confounders. Items on disruptive/aggressive behaviour and irritability had the highest loadings on the YMRS disruptive component. Premorbid TBI was not associated with an increased hypomania/mania:depression ratio.

CONCLUSIONS

Disruptive symptoms and comorbid migraine characterize BD with premorbid TBI. Further studies should examine whether the partial phenomenological overlap with BD due to TBI could be explained by a continuum of pathophysiological effects of TBI across the diagnostic dichotomy. Trial registration ClinicalTrials.gov: NCT00201526. Registered September 2005 (retrospectively registered).

Poststroke psychosis: a systematic review

A preregistered systematic review of poststroke psychosis examining clinical characteristics, prevalence, diagnostic procedures, lesion location, treatments, risk factors and outcome. Neuropsychiatric outcomes following stroke are common and severely impact quality of life. No previous reviews have focused on poststroke psychosis despite clear clinical need. CINAHL, MEDLINE and PsychINFO were searched for studies on poststroke psychosis published between 1975 and 2016. Reviewers independently selected studies for inclusion, extracted data and rated study quality. Out of 2442 references, 76 met inclusion criteria. Average age for poststroke psychosis was 66.6 years with slightly more males than females affected. Delayed onset was common. Neurological presentation was typical for stroke, but a significant minority had otherwise 'silent strokes'. The most common psychosis was delusional disorder, followed by schizophrenia-like psychosis and mood disorder with psychotic features. Estimated delusion prevalence was 4.67% (95% CI 2.30% to 7.79%) and hallucinations 5.05% (95% CI 1.84% to 9.65%). Twelve-year incidence was 6.7%. No systematic treatment studies were found. Case studies frequently report symptom remission after antipsychotics, but serious concerns about under-representation of poor outcome remain. Lesions were typically right hemisphere, particularly frontal, temporal and parietal regions, and the right caudate nucleus. In general, poststroke psychosis was associated with poor functional outcomes and high mortality. Poor methodological quality of studies was a significant limitation. Psychosis considerably adds to illness burden of stroke. Delayed onset suggests a window for early intervention. Studies on the safety and efficacy of antipsychotics in this population are urgently needed.

Cognitive behavioural therapy for aggression among individuals with moderate to severe acquired brain injury: a systematic review and meta-analysis

BACKGROUND

Aggression is common after an acquired brain injury (ABI). Cognitive behavioural therapy (CBT) is a form of psychotherapy, in which therapists help patients to identify their maladaptive behaviours.

OBJECTIVE

The objective of this systematic review and meta-analysis was to evaluate the effectiveness of CBT interventions in treating aggression in an ABI population.

METHODS

A systematic literature search was conducted using: PubMed/MEDLINE, CINAHL, EMBASE and PsycINFO from database inception to August 2016. English articles were included if: at least 50% of the study sample had a moderate to severe ABI, there were at least three adult human participants, and use of a CBT intervention for the treatment of aggression.

RESULTS

Seven articles met inclusion criteria: one RCT, an RCT crossover and five pre-post trials. Of these, four articles were included in a pre-post meta-analysis for treatment efficacy on subscales of the State Trait Anger Expression Inventory (STAXI) and STAXI-2 outcome measures. The meta-analysis found CBT was effective in moderating the external behaviours of aggression, but not internal anger.

CONCLUSION

The differences in outcomes may be related to the differential management of anger expression and anger suppression. CBT shows promise, but further studies with comparator groups are needed before conclusions about its efficacy can be made.