Cost-Effectiveness of Sleep Apnea Diagnosis and Treatment in Hospitalized Persons With Moderate to Severe Traumatic Brain Injury.

OBJECTIVE: To assess the cost-effectiveness of alternative approaches to diagnose and treat obstructive sleep apnea (OSA) in patients with traumatic brain injury (TBI) during inpatient rehabilitation. SETTING: Data collected during the Comparison of Sleep Apnea Assessment Strategies to Maximize TBI Rehabilitation Participation and Outcome (C-SAS) clinical trial (NCT03033901) on an inpatient rehabilitation TBI cohort were used in this study. STUDY DESIGN: Decision tree analysis was used to determine the cost-effectiveness of approaches to diagnosing and treating sleep apnea. Costs were determined using 2021 Centers for Medicare and Medicaid Services reimbursement codes. Effectiveness was defined in terms of the appropriateness of treatment. Costs averted were extracted from the literature. A sensitivity analysis was performed to account for uncertainty. Analyses were performed for all severity levels of OSA and a subgroup of those with moderate to severe OSA. Six inpatient approaches using various phases of screening, testing, and treatment that conform to usual care or guideline-endorsed interventions were evaluated: (1) usual care; (2) portable diagnostic testing followed by laboratory-quality testing; (3) screening with the snoring, tiredness, observed apnea, high BP, BMI, age, neck circumference, and male gender (STOP-Bang) questionnaire; (4) Multivariable Apnea Prediction Index (MAPI) followed by portable diagnostic testing and laboratory-quality testing; (5) laboratory-quality testing for all; and (6) treatment for all patients. MAIN MEASURES: Cost, Effectiveness, and Incremental Cost-Effectiveness Ratio (ICER). RESULTS: Phased approaches utilizing screening and diagnostic tools were more effective in diagnosing and allocating treatment for OSA than all alternatives in patients with mild to severe and moderate to severe OSA. Usual care was more costly and less effective than all other approaches for mild to severe and moderate to severe OSA. CONCLUSIONS: Diagnosing and treating OSA in patients with TBI is a cost-effective strategy when compared with usual care.

Understanding the association between perceived injustice, depression symptoms, and stigma in individuals with traumatic spinal cord injury.

STUDY DESIGN: This is a secondary analysis of data from a cross-sectional, observational study. OBJECTIVES: The study aimed to determine whether stigma mediates the relationship between preceived injustice and depression symptoms among individuals with spinal cord injuries. SETTING: Secondary analysis of participants enrolled in the Spinal Cord Injury Model System at a specialty rehabilitation hospital in the Western United States. METHODS: A sample of 225 participants completed the questionnaires; eight participants were removed due to incomplete data, resulting in a final sample size of 217 participants (79% male; 21% female). Participants were, on average, 53 years old and were predominantly male, white, and 20 years post-injury. A bootstrapping mediation analysis was conducted to evaluate the stigma-mediated relationship between injustice appraisals and depression symptoms. Injustice appraisals were assessed using the Injustice Experience Questionnaire, stigma with the Spinal Cord Injury Quality of Life Stigma-Short Form, and depression symptoms with the Patient Health Questionnaire-9. RESULTS: Stigma was found to mediate the relationship between injustice appraisals and depression, with an estimated proportion mediated of 80.9% (p ≤ 0.0001). CONCLUSIONS: This study provides a novel finding that the relationship between injustice appraisals and depression symptoms is mediated by stigma. Consistent with previous research, injustice appraisals were associated with greater severity of depression symptoms. Results provide further evidence for the role of injustice appraisals after spinal cord injury and a potential mechanism (i.e., stigma) by which it may exert its effect on depression symptoms.

Anxiety in Response to Sustaining Spinal Cord Injuries and Disorders: When Should Clinicians Be Concerned?

OBJECTIVE: To recommend a cut-off score for the brief 2-item Generalized Anxiety Disorder (GAD-2) measure for persons with spinal cord injuries/disorders (PwSCI/D) and to estimate anxiety occurrence within this population using the full 7-item Generalized Anxiety Disorder (GAD-7). DESIGN: Multicenter retrospective analyses. SETTING: One inpatient rehabilitation center and 2 community sites for PwSCI/D. PARTICIPANTS: PwSCI/D 18 years or older (N=909) were included for analysis using retrospectively collected GAD-2 and GAD-7 data. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURE(S): Occurrence of anxiety symptoms were compared using cut-off scores of ≥8 and ≥10 on the GAD-7. A cut-off score recommendation for the GAD-2 was determined using ROC curve, and sensitivity and specificity analyses. RESULTS: Occurrence of anxiety symptoms was 21% using a GAD-7 cut-off of ≥8 and 15% using a cut-off of ≥10. Analyses indicated optimal sensitivity for a GAD-2 score of ≥2 when a GAD-7 cut-off of ≥8 was used. CONCLUSIONS: Anxiety occurrence is elevated among PwSCI/D compared with the general population. For PwSCI/D, it is recommended that a cut-off score of ≥2 is used for the GAD-2 to maximize sensitivity and that a threshold of ≥8 is used for the GAD-7 to ensure the maximum number of individuals presenting with symptoms of anxiety are recognized for diagnostic interview. Study limitations are discussed.

Cognitive Performance, Depression, and Anxiety 1 Year After Traumatic Brain Injury.

OBJECTIVES: To evaluate associations between depression, anxiety, and cognitive impairment among individuals with complicated mild to severe traumatic brain injury (TBI) 1 year after injury. SETTING: Multiple inpatient rehabilitation units across the United States. PARTICIPANTS: A total of 498 adults 16 years and older who completed inpatient rehabilitation for complicated mild to severe TBI. DESIGN: Secondary analysis of a prospective, multicenter, cross-sectional observational cohort study. MAIN MEASURES: Assessments of depression (Traumatic Brain Injury Quality of Life [TBI-QOL] Depression) and anxiety (TBI-QOL Anxiety) as well as a telephone-based brief screening measure of cognitive functioning (Brief Test of Adult Cognition by Telephone [BTACT]). RESULTS: We found an inverse relationship between self-reported depression symptoms and the BTACT Composite score (ß = -0.18, P < .01) and anxiety symptoms and the BTACT Composite score (ß = -0.20, P < .01). There was no evidence this relationship varied by injury severity. Exploratory analyses showed depression and anxiety were negatively correlated with both BTACT Executive Function factor score and BTACT Memory factor score. CONCLUSIONS: Both depression and anxiety have a small but significant negative association with cognitive performance in the context of complicated mild to severe TBI. These findings highlight the importance of considering depression and anxiety when interpreting TBI-related neuropsychological impairments, even among more severe TBI.

Changes in essential care in individuals with spinal cord injury during the COVID-19 pandemic.

STUDY DESIGN: Cross-sectional, observational study. OBJECTIVES: To determine whether changes in essential care during the COVID-19 pandemic impacted satisfaction with activities, participation, and relationships among individuals with spinal cord injury (SCI). SETTING: Data were collected online between December 31, 2020 and February 14, 2021 among community dwelling adults with SCI (N = 123). METHODS: The primary outcome variables were satisfaction with the ability to complete activities of daily living (ADLs) (mobility, dressing, feeding, and toileting), as well as satisfaction with participation in household and recreational activities, and satisfaction with relationships among friends, family, and with the status of one's relationship measured with the International Spinal Cord Injury Data Sets Activities and Participation Basic Data Set. Primary predictors were age, gender, time since injury, completeness of injury, injury level, access to mental health, access to medications, access to medical supplies, and access to personal care assistants (PCAs). RESULTS: Impact on access to mental health and impact on access to supplies were the most common factors affecting satisfaction with activities, participation, and relationships for individuals with SCI during the COVID-19 pandemic. Impact on access to PCAs/homecare was also found to impact certain outcomes including feeding and participation in household activities. CONCLUSIONS: Future supply chain disruptions from pandemics or natural disasters could have wide-reaching effects for individuals with SCIs. Thus, further research and advocacy is needed to improve mental health care planning and supply chain access during subsequent natural disasters.

Long-Term Follow-Up of Patients With Ventilator-Dependent High Tetraplegia Managed With Diaphragmatic Pacing Systems.

OBJECTIVE: To explore participants' experiences after implantation of a diaphragmatic pacing system (DPS). DESIGN: Cross-sectional, observational study using self-report questionnaires. SETTING: Participants were recruited from 6 Spinal Cord Injury Model System centers across the United States (Craig Hospital, CO; Jefferson/Magee Rehabilitation Hospital, PA; Kessler Rehabilitation Center, NJ; University of Miami, FL; The Shirly Ryan Ability Lab, IL; Shepherd Center, GA). INTERVENTIONS: Not applicable. PARTICIPANTS: Men and women (N=28) with tetraplegia were enrolled in the study between November 2012 and January 2015. MAIN OUTCOME MEASURES: Participants completed self-report questionnaires focused on their DPS usage and mechanical ventilation, as well as their experiences and satisfaction with the DPS. RESULTS: DPS is a well-tolerated and highly successful device to help individuals living with spinal cord injury who are dependent on ventilators achieve negative pressure, ventilator-free breathing. A small percentage of participants reported complications, including broken pacing wires and surgery to replace or reposition wires. CONCLUSIONS: This study provides insight into the usage patterns of DPS and both the potential negative and positive effects that DPS can have on the life of the user. Knowledge gained from this study can provide a foundation for further discussion about the benefits and potential risks of using a DPS to inform an individual's decision to pursue a DPS implant.

Utilization of Complementary and Integrative Health Care by People With Spinal Cord Injury in the Spinal Cord Injury Model Systems: A Descriptive Study.

OBJECTIVE: To characterize the use of complementary and integrative health care (CIH) by people with spinal cord injury. DESIGN: Cross-sectional self-report study. SETTING: Participants were recruited from 5 Spinal Cord Injury Model Systems (SCIMS) centers across the United States. INTERVENTIONS: Not applicable. PARTICIPANTS: A total of 411 persons enrolled in the SCIMS completing their SCIMS follow-up interview between January 2017 and July 2019 (N = 411). MAIN OUTCOME MEASURES: Participants completed a survey developed for this study that included questions about types of CIH currently and previously used, reasons for current and previous use, reasons for discontinuing use of CIH, and reasons for never using CIH since injury. RESULTS: Of the 411 respondents, 80.3% were current or previous users of CIH; 19.7% had not used CIH since injury. The most commonly used current types of CIH were multivitamins (40.0%) and massage (32.6%), whereas the most common previously used type of CIH was acupuncture (33.9%). General health and wellness (61.4%) and pain (31.2%) were the most common reasons for using CIH. The primary reason for discontinuing CIH was that it was not helpful (42.1%). The primary reason for not using CIH since injury was not knowing what options are available (40.7%). CONCLUSIONS: These results point to the importance for rehabilitation clinicians to be aware that their patients may be using 1 or more CIH approaches. Providers should be open to starting a dialogue to ensure the health and safety of their patients because there is limited information on safety and efficacy of CIH approaches in this population. These results also set the stage for further analysis of this data set to increase our knowledge in this area.

Association between weekly exercise minutes and resting IL-6 in adults with chronic spinal cord injury: findings from the fracture risk after spinal cord injury exercise study.

STUDY DESIGN: Cross-sectional study. OBJECTIVE: To assess associations between weekly aerobic exercise minutes and resting interleukin-6 (IL-6), C-reactive protein (CRP), or leptin levels in adults with chronic spinal cord injury (SCI). SETTING: Three hundred and forty-four community-dwelling men and women with SCI duration of > 1 year. METHODS: CRP, IL-6, and leptin levels were quantified by ultra-sensitive enzyme-linked immunoassay. Smoking, medication use, comorbidities, and aerobic exercise minutes per week were assessed by self-reported questionnaire. Body composition was determined by whole-body dual-energy X-ray absorptiometry. Generalized linear models were used to assess associations. RESULTS: In multivariable modeling, resting IL-6 levels were 0.001 pg/mL lower for every 1 min of weekly aerobic exercise. IL-6 levels increased with increasing android-to-gynoid fat ratio, in active/ever smokers compared to never smokers, and in individuals with skin pressure injuries compared to those without. IL-6 levels were lower in active ibuprofen users compared to nonusers. We found no association between weekly exercise minutes and CRP or leptin when designing similar models. CONCLUSIONS: Increasing aerobic exercise minutes is associated with lower IL-6 levels in adults with chronic SCI when considering body composition, smoking, skin pressure injuries, and ibuprofen use. CRP and leptin did not demonstrate an association with exercise when considering the similar variables. The use of these biomarkers in assessing the therapeutic value of future exercise-related interventions will be paramount for meaningful health improvement among those with SCI. Although a large, prospective dataset, this cross-sectional study cannot assign causation. Future prospective studies are needed to confirm these findings.

Return to Driving After Moderate-to-Severe Traumatic Brain Injury: A Traumatic Brain Injury Model System Study.

OBJECTIVE: Describe who is able to return to driving (RTD) after moderate-to-severe traumatic brain injury (TBI), when this occurs, who maintains that activity, and the association with outcome. DESIGN: Cross-sectional descriptive study. SETTING: Eight follow-up sites of the TBI Model Systems (TBIMS) program. PARTICIPANTS: 618 participants enrolled in the TBIMS and 88 caregivers (N=706). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: A survey was completed from 1-30 years postinjury focusing on RTD. Descriptors included demographic information, injury severity, and current employment status. Outcome was assessed at the time of the interview, including depression, quality of life, functional status, and community participation. RESULTS: Of 706 respondents, 78% (N = 552) RTD, but 14% (N = 77) of these did not maintain that activity. Of those who RTD, 43% (N = 192) did so within 6 months of the injury and 92% did so within 24 months postinjury. The percentage of people driving after TBI did not differ significantly based on age at time of injury or follow-up. There were significant differences between drivers and nondrivers with respect to severity of injury, seizures, race, education, employment, rural vs urban setting, marital status, and family income. We performed a multivariate logistic regression to examine the association between driving status and demographic variables, adjusting for other variables in the model. The strongest associations were with current employment, family income, race, seizures, and severity of injury. Driving was associated with greater community participation, better functional outcomes, fewer symptoms of depression, and greater life satisfaction. CONCLUSIONS: Over a span of 30 years, three-quarters of people experiencing moderate-to-severe TBI return to driving a personal vehicle, although not everyone maintains this activity. Employment, race, family income, and seizures are strongly associated with RTD.

Unmet Rehabilitation Needs Indirectly Influence Life Satisfaction 5 Years After Traumatic Brain Injury: A Veterans Affairs TBI Model Systems Study.

OBJECTIVE: To describe the association between unmet rehabilitation needs and life satisfaction 5 years after traumatic brain injury (TBI). DESIGN: Prospective observational cohort. SETTING: Five Veterans Affairs (VA) Polytrauma Rehabilitation Centers. PARTICIPANTS: VA TBI Model Systems participants (N=301); 95% male; 77% white; average age, 39±14y). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Satisfaction With Life Scale (SWLS). RESULTS: Average SWLS score was 22±8. Univariable analyses demonstrated several statistically significant predictors of life satisfaction, including employment status, participation, psychiatric symptom severity, past year mental health treatment, and total number of unmet rehabilitation needs (all P<.05). Multivariable analyses revealed that depression and participation were each associated with life satisfaction. An ad hoc mediation model suggested that unmet rehabilitation needs total was indirectly related to life satisfaction. Total unmet rehabilitation needs ranged from 0-21 (mean, 2.0±3.4). Correlational analyses showed that 14 of the 21 unmet rehabilitation needs were associated with life satisfaction. CONCLUSIONS: Findings support the need for rehabilitation engagement in later stages of TBI recovery. Ongoing assessment of and intervention for unmet rehabilitation needs in the chronic phase of recovery have the potential to mitigate decline in life satisfaction.

Scoping Review of Opioid Use After Traumatic Brain Injury.

OBJECTIVE: To summarize the current literature to identify what research has been conducted, examine the approaches used, and determine what is presently known about prescription and nonprescription opioid receipts and use among individuals with traumatic brain injury (TBI). DATA SOURCES: The search strategy included the following: opioid; opiate; analgesics, opioid; opiate alkaloids; or opioid-related disorders; AND brain injury; brain injuries; brain injuries, traumatic; head injury; head injuries; head injuries, closed; head injuries, penetrating; brain concussion; diffuse axonal injury; diffuse axonal injuries; brain trauma/s; head trauma/s; concussion; craniocerebral trauma/s; or TBI. Filters included English and Adults (19+ years). Study Selection: Inclusion: English language, adults with stable TBI, and prescription opioid receipt or use after TBI. Exclusion: Animal models, populations with other acquired brain injury, acute TBI management, and non-peer-reviewed articles, theses, or conference abstracts. Multiple reviewers screened abstracts and full-text articles for eligibility. In total, 771 abstracts were screened, 183 full texts were reviewed, and 21 met eligibility criteria. Data Extraction: Relevant content was independently extracted by multiple observers, including authors, design, sample identification and data source/s, TBI severity, TBI assessment, opioid assessment, study population (demographics, N), military affiliation, comparison groups, date of data collection, and summary of findings. RESULTS: Studies were published between 1987 and 2019; most data were collected prior to 2015. The majority utilized administrative and electronic medical record data from the Department of Veterans Affairs and retrospective cohort designs, and most focused on prescription opioids. There were no studies evaluating interventions to reduce use of opioids in TBI populations. Preliminary findings suggest that prescription opioid receipt is strongly related to psychological symptoms, including comorbid depression, anxiety, and posttraumatic stress disorder. CONCLUSIONS: Despite increased awareness of opioid receipt and use following TBI, there is limited investigation on the examination of this issue. Future studies should include more varied patient populations as well as evaluate interventions to reduce opioid use following TBI.

Validation of the Injustice Experience Questionnaire (IEQ) in a spinal cord injury population.

STUDY DESIGN: Retrospective analysis of cross-sectional data. OBJECTIVES: To verify the factor structure of the Injustice Experience Questionnaire (IEQ) using a sample of individuals with spinal cord injury (SCI) and to assess IEQ scale reliability and construct validity using the same population. SETTING: Two SCI rehabilitation sites in the United States. METHODS: Three datasets were combined to conduct this validation study. The sample consisted of 341 adults with SCI who completed the IEQ, measures of psychological distress and pain, and provided sociodemographic and injury-related information. A series of confirmatory factor analyses (CFA) and exploratory factor analyses (EFA) were conducted to verify the two-factor structure of the IEQ, Cronbach's alpha was used to demonstrate scale reliability, and correlations between the IEQ and measures of pain and psychological distress were examined to assess construct validity. RESULTS: Poor model fit was observed for the two-factor structure of the IEQ as well as for the subsequent factor-structures that were explored. The IEQ demonstrated strong scale reliability (α = 0.89) and correlations between the IEQ and measures of pain and psychological distress were in the expected direction, indicating good construct validity. CONCLUSIONS: In this preliminary validation study, we failed to confirm the two-factor structure of the IEQ in a population of individuals with SCI. Though good scale reliability and construct validity were observed, further study is needed to refine the IEQ for use in this population.

Resilience and mental health in individuals with spinal cord injury during the COVID-19 pandemic.

STUDY DESIGN: Cross-sectional, observational study. OBJECTIVES: To understand how resilience, access to personal care attendants (PCAs) and medical supplies, and concerns about medical rationing, finances, and social isolation are related to overall and mental health in individuals with spinal cord injury (SCI) in the context of the COVID-19 pandemic. SETTING: Community dwelling adults (N = 187) with SCI. METHODS: Data were collected online between May 1, 2020 and August 31, 2020. Outcomes were overall and mental health, depression and anxiety symptoms, and quality of life (QoL). Predictors were resilience, access to PCAs and medical supplies, and concerns about medical rationing, finances, and social isolation. RESULTS: Incomplete injury, concern about medical rationing, medical supply disruption, and social isolation predicted a greater perceived impact of the pandemic on overall heath. Younger age, decreased resilience, and concern about medical rationing and social isolation predicted greater perceived impact of the pandemic on mental health. Decreased resilience and concern about medical rationing and finances predicted increased anxiety symptoms. Incomplete injury, believing that medical rationing was occurring, decreased resilience, and concern about finances and social isolation predicted increased depressive symptoms. Decreased resilience and concern about finances, medical rationing, and social isolation predicted lower QoL. CONCLUSIONS: The negative effects of the pandemic on the overall and mental health of individuals with SCI may be ameliorated by resilience. In future crises, it may be beneficial to screen individuals for resilience so that those with decreased resilience are offered the appropriate resources to enhance resilience and improve overall wellbeing.

Comparative Effectiveness of Sleep Apnea Screening Instruments During Inpatient Rehabilitation Following Moderate to Severe TBI.

OBJECTIVE: To determine the diagnostic sensitivity and specificity and comparative effectiveness of traditional sleep apnea screening tools in traumatic brain injury (TBI) neurorehabilitation admissions. DESIGN: Prospective diagnostic comparative effectiveness trial of sleep apnea screening tools relative to the criterion standard, attended level 1 polysomnography including encephalography. SETTING: Six TBI Model System Inpatient Rehabilitation Centers. PARTICIPANTS: Between May 2017 and February 2019, 449 of 896 screened were eligible for the trial with 345 consented (77% consented). Additional screening left 263 eligible for and completing polysomnography with final analyses completed on 248. INTERVENTION: Not applicable. MAIN OUTCOME MEASURES: Area under the curve (AUC) of screening tools relative to total apnea hypopnea index≥15 (AHI, moderate to severe apnea) measured at a median of 47 days post-TBI (interquartile range, 29-47). RESULTS: The Berlin high-risk score (receiving operating curve [ROC] AUC=0.634) was inferior to the Multivariable Apnea Prediction Index (MAPI) (ROC AUC=0.780) (P=.0211; CI, 0.018-0.223) and Snoring, Tired, Observed, Blood Pressure, Body Mass Index, Age, Neck Circumference, and Gender (STOPBANG) score (ROC AUC=0.785) (P=.001; CI, 0.063-0.230), both of which had comparable AUC (P=.7245; CI, -0.047 to 0.068). Findings were similar for AHI≥30 (severe apnea); however, no differences across scales was observed at AHI≥5. The pattern was similar across TBI severity subgroups except for posttraumatic amnesia (PTA) status wherein the MAPI outperformed the Berlin. Youden's index to determine risk yielded lower sensitivities but higher specificities relative to non-TBI samples. CONCLUSION: This study is the first to provide clinicians with data to support a choice for which sleep apnea screening tools are more effective during inpatient rehabilitation for TBI (STOPBANG, MAPI vs Berlin) to help reduce comorbidity and possibly improve neurologic outcome.

Associations Between Insurance Provider and Assistive Technology Use for Computer and Electronic Devices 1 Year After Tetraplegia: Findings From the Spinal Cord Injury Model Systems National Database.

OBJECTIVE: To investigate the association between insurance provider and reported assistive technology (AT) use to access computers and electronic devices 1 year after sustaining tetraplegia. DESIGN: Multicenter cross-sectional study. SETTING: Participants enrolled in the Spinal Cord Injury Model Systems (SCIMS) National Database. INTERVENTIONS: Not applicable. PARTICIPANTS: Men and women with tetraplegia (N=498) enrolled in the SCIMS National Database were included in the analysis. MAIN OUTCOME MEASURES: The primary study outcome was the use of AT when operating a computer or other mobile electronic device. The primary predictor was the subject's principal health insurance provider, which was grouped into the 3 categories: government (Medicare, Medicaid, and other government), private (private insurance, private funds, and other), and workers' compensation. RESULTS: Overall, 34.7% of participants reported using AT to access computers and electronic devices. Results of logistic regression analysis revealed sex, injury level, injury completeness, self-perceived health status, and 12-month history of pressure ulcer were all significantly associated with AT use. After adjusting for these factors, participants with workers' compensation were more likely to report AT use than individuals with either government or private insurance. CONCLUSIONS: Despite significant technological advances, AT is not readily available to the people who might benefit most from its use. Findings from the present study are the first to shed light on AT funding sources and reveal that individuals with workers' compensation are more likely use AT than individuals with either government or private insurance. Additional work focused on AT use and functional outcomes is needed to assess the effect of barriers to use. Collectively, this work may inform insurers of the importance of having AT available for this unique population to potentially improve quality of life and participation.

Perceived injustice after spinal cord injury: evidence for a distinct psychological construct.

STUDY DESIGN: Cross-sectional study. OBJECTIVE: To identify unique predictors of perceived injustice compared with depression symptoms within the first year after SCI. SETTING: Inpatient rehabilitation program in a large urban region in the Southwestern United States. METHODS: A sample of 74 participants with median time since injury of 52 days completed measures of perceived injustice, depression symptoms, posttraumatic stress symptoms, expected disability, pain intensity, and anger. RESULTS: Three unique predictors of perceived injustice as compared with depression symptoms were found-time since injury, state anger, and sex. These predictors had significantly different relationships with perceived injustice than with depression symptoms. CONCLUSIONS: Results replicate previous findings that perceived injustice is moderately correlated with depression symptoms. However, findings also reveal factors uniquely associated with perceived injustice than with depression symptoms, providing support that these are two separate constructs. Thus, these findings support development of novel interventions targeting perceptions of injustice.

Disrupted sleep predicts next day agitation following moderate to severe brain injury.

Objective: Disrupted sleep is common during acute recovery from traumatic brain injury (TBI) and has been linked to daytime agitation. This study investigated the relationship among nighttime sleep efficiency (SE), total sleep time (TST), wakefulness after sleep onset (WASO), and number of wake bouts (NWB) as measured by actigraphy to observer ratings of agitation for patients with TBI who were undergoing inpatient rehabilitation. Methods: This is a retrospective, observational study of a convenience sample of 65 individuals admitted to TBI inpatient rehabilitation who were monitored with actigraphy and the Agitated Behaviour Scale (ABS) for the first 72 h. Each patient's average SE, TST, WASO, and NWB for the 72-h period was calculated using actigraphy for the rest interval from 2100 to 0700. Daily ABS scores were obtained for each day following the nighttime sleep period. Results: Patients were not significantly different on age, gender, etiology of injury, days post-injury, rehabilitation length of stay, or severity of injury as measured by length of posttraumatic amnesia (PTA). SE and TST were significantly lower for patients with agitation than for patients without agitation. Conclusions: This study suggests a relationship between disrupted sleep and agitation for patients with TBI who are undergoing inpatient rehabilitation.

Validation of the VBLaST pattern cutting task: a learning curve study.

BACKGROUND: Mastery of laparoscopic skills is essential in surgical practice and requires considerable time and effort to achieve. The Virtual Basic Laparoscopic Skill Trainer (VBLaST-PC©) is a virtual simulator that was developed as a computerized version of the pattern cutting (PC) task in the Fundamentals of Laparoscopic Surgery (FLS) system. To establish convergent validity for the VBLaST-PC©, we assessed trainees' learning curves using the cumulative summation (CUSUM) method and compared them with those on the FLS. METHODS: Twenty-four medical students were randomly assigned to an FLS training group, a VBLaST training group, or a control group. Fifteen training sessions, 30 min in duration per session per day, were conducted over 3 weeks. All subjects completed pretest, posttest, and retention test (2 weeks after posttest) on both the FLS and VBLaST© simulators. Performance data, including time, error, FLS score, learning rate, learning plateau, and CUSUM score, were analyzed. RESULTS: The learning curve for all trained subjects demonstrated increasing performance and a performance plateau. CUSUM analyses showed that five of the seven subjects reached the intermediate proficiency level but none reached the expert proficiency level after 150 practice trials. Performance was significantly improved after simulation training, but only in the assigned simulator. No significant decay of skills after 2 weeks of disuse was observed. Control subjects did not show any learning on the FLS simulator, but improved continually in the VBLaST simulator. CONCLUSIONS: Although VBLaST©- and FLS-trained subjects demonstrated similar learning rates and plateaus, the majority of subjects required more than 150 trials to achieve proficiency. Trained subjects demonstrated improved performance in only the assigned simulator, indicating specificity of training. The virtual simulator may provide better opportunities for learning, especially with limited training exposure.

Exploring the feasibility of heart rate variability biofeedback for individuals with tetraplegia: A pilot clinical trial.

PURPOSE/OBJECTIVE: This study aimed to determine the feasibility of using commercially available heart rate variability (HRV) biofeedback training to improve physiological and self-reported stress and anxiety among adults with tetraplegia. HRV biofeedback teaches individuals to effectively modify their HRV levels in synchronization with their respiration rate and amplitude. RESEARCH METHOD/DESIGN: Thirty participants with tetraplegia were enrolled and allocated into one of two study arms: biofeedback or control. The study was conducted remotely from June 2022 through February 2023. Participants in the biofeedback arm received eight HRV training sessions with physiological monitoring, while participants in the control arm received physiological monitoring only. Outcome measures included feasibility, percentage of time spent in the low-frequency range, the Depression Anxiety Stress Scale-21, the Subjective Units of Distress Scale, and the State-Trait Anxiety Inventory-Y Form. RESULTS: Feasibility was demonstrated with 100% completion of the protocol and no participant withdrawals due to adverse events. The biofeedback arm showed a greater percentage of time spent in the low-frequency range and reported greater improvement in anxiety from baseline to Session 8 on the Subjective Units of Distress Scale compared to the control arm. However, no differences were found between study arms on the Depression Anxiety Stress Scale-21 and State-Trait Anxiety Inventory-Y Form. CONCLUSIONS/IMPLICATIONS: This study demonstrated that a remotely delivered, self-administered HRV biofeedback intervention could feasibly be delivered to individuals with tetraplegia who report moderate-to-high levels of anxiety. Trends in the reduction of physiological and self-reported anxiety were observed. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Using remotely delivered Spring Forest Qigong™ to reduce neuropathic pain in adults with spinal cord injury: A non-randomized controlled trial.

Importance: The manuscript proposes the feasibility and potential of a remote Qigong intervention to reduce neuropathic pain in adults with spinal cord injury (SCI)-related neuropathic pain. Objective: We determined the feasibility and estimates of efficacy of a remotely delivered Qigong intervention in adults with SCI-related neuropathic pain. Design: This is a non-randomized controlled trial with outcomes assessed at baseline-, 6- and 12-weeks of Qigong practice, and at 6-weeks and 1-year follow-up. Setting: Completely remote clinical trial. Participants: Adults with SCI-related neuropathic pain, with SCI ≥3 months, with complete or incomplete SCI, and highest neuropathic pain level of >3 on the Numeric Pain Rating Scale (NPRS). We used nationwide volunteer sampling.We recruited 23 adults with chronic SCI (7/2021-2/2022). Eighteen participants started the study and completed all study components, including the 6-week follow-up. Twelve participants completed the 1-year follow-up assessment. Intervention: Participants practiced the Spring Forest Qigong™ "Five Element Healing Movements" with an online video by combining movement with kinesthetic imagery, at least 3x/week for 12 weeks. Main Outcomes and Measures: To address the feasibility outcome and track adherence, the website automatically monitored the days and duration that the Qigong video was played. Self-report neuropathic pain intensity and SCI-related symptoms such as spasms, functional performance, mood, and body appreciation were also collected. Results: Eighteen participants, 60±12 years of age, 15±11 years post-SCI had a highest baseline neuropathic pain of 7.94±2.33 on the NPRS, which was reduced to 4.17±3.07 after 12 weeks of Qigong practice (Cohen's d =1.75). This pain relief remained at 6-week and 1-year follow-ups. Participants reported reduced spasm frequency (change score 1.17±1.20, d =0.98) and severity (0.72±1.02, d =0.71), and reduced interference of neuropathic pain on mood (3.44±2.53, d =1.36), sleep (3.39±2.40, d =1.41), and daily activities (3.17±2.77, d =1.14). They had a greater ability to perform functional activities (Patient Specific Functional Scale, 6.68±3.07, d =2.18) and had improved mood (Patient Health Questionnaire-9, 2.33±3.31, d =0.70). Conclusions and Relevance: Our preliminary data demonstrate the feasibility of Qigong practice in adults with SCI-related neuropathic pain and promising results of neuropathic pain relief and improvement in SCI-related symptoms after Qigong practice. Trial Registration this manuscript refers to the quasi-experimental substudy: CREATION: A Clinical Trial of Qigong for Neuropathic Pain Relief in Adults with Spinal Cord Injury, NCT04917107 , https://www.clinicaltrials.gov/ct2/show/NCT04917107 .