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Bilder RM, Postal KS, Barisa M, Aase DM, Cullum CM, Gillaspy SR, Harder L, Kanter G, Lanca M, Lechuga DM, Morgan JM, Most R, Puente AE, Salinas CM, Woodhouse J. InterOrganizational practice committee recommendations/guidance for teleneuropsychology (TeleNP) in response to the COVID-19 pandemic. Clin Neuropsychol 2020; 34:1314-1334. [PMID: 32673163 PMCID: PMC7767580 DOI: 10.1080/13854046.2020.1767214] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022]
Abstract
Objective: The Inter Organizational Practice Committee (IOPC) convened a workgroup to provide rapid guidance about teleneuropsychology (TeleNP) in response to the COVID-19 pandemic.Method: A collaborative panel of experts from major professional organizations developed provisional guidance for neuropsychological practice during the pandemic. The stakeholders included the American Academy of Clinical Neuropsychology/American Board of Clinical Neuropsychology, the National Academy of Neuropsychology, Division 40 of the American Psychological Association, the American Board of Professional Neuropsychology, and the American Psychological Association Services, Inc. The group reviewed literature, collated federal, regional and state regulations and information from insurers, and surveyed practitioners to identify best practices.Results: Literature indicates that TeleNP may offer reliable and valid assessments, but clinicians need to consider limitations, develop new informed consent procedures, report modifications of standard procedures, and state limitations to diagnostic conclusions and recommendations. Specific limitations affect TeleNP assessments of older adults, younger children, individuals with limited access to technology, and individuals with other individual, cultural, and/or linguistic differences. TeleNP may be contraindicated or infeasible given specific patient characteristics, circumstances, and referral questions. Considerations for billing TeleNP services are offered with reservations that clinicians must verify procedures independently. Guidance about technical issues and "tips" for TeleNP procedures are provided.Conclusion: This document provides provisional guidance with links to resources and established guidelines for telepsychology. Specific recommendations extend these practices to TeleNP. These recommendations may be revised as circumstances evolve, with updates posted continuously at OPC.online.
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Fields L, Didehbani N, Hart J, Cullum CM. No Linear Association Between Number of Concussions or Years Played and Cognitive Outcomes in Retired NFL Players. Arch Clin Neuropsychol 2020; 35:233-239. [PMID: 30844072 DOI: 10.1093/arclin/acz008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 12/17/2018] [Accepted: 02/05/2019] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE The aim of the current study is to examine whether concussion history and years played are linearly associated with cognitive outcomes in retired National Football League (NFL) players. METHOD Thirty-five retired NFL players over the age of 50 who had sustained at least one concussion completed a clinical interview and brief neuropsychological battery. Correlational analyses were conducted between exposure variables [number of total concussions, concussions with loss of consciousness (LOC), and years played] and cognitive performance as characterized by cognitive composite scores based on performance on neuropsychological measures (attention/processing speed, language, memory, and overall composite scores). RESULTS Correlational analyses corrected for multiple comparisons did not reveal any statistically significant correlations between exposure variables and cognitive outcomes. CONCLUSIONS We did not find a significant linear association between cognitive outcomes and either number of total concussions, concussions with LOC, or years played in the NFL. These findings do not support a dose-response relationship between sports-related exposure to head impacts and cognitive outcomes later in life. Rather, the findings suggest that cognitive difficulties experienced by some retired players later in life are not directly linearly associated with quantified exposure to head impacts sustained throughout a football career, but related to factors or combinations of factors that have yet to be elucidated.
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Bilder RM, Postal KS, Barisa M, Aase DM, Cullum CM, Gillaspy SR, Harder L, Kanter G, Lanca M, Lechuga DM, Morgan JM, Most R, Puente AE, Salinas CM, Woodhouse J. Inter Organizational Practice Committee Recommendations/Guidance for Teleneuropsychology in Response to the COVID-19 Pandemic†. Arch Clin Neuropsychol 2020; 35:647-659. [PMID: 32666093 PMCID: PMC7454875 DOI: 10.1093/arclin/acaa046] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE The Inter Organizational Practice Committee convened a workgroup to provide rapid guidance about teleneuropsychology (TeleNP) in response to the COVID-19 pandemic. METHOD A collaborative panel of experts from major professional organizations developed provisional guidance for neuropsychological practice during the pandemic. The stakeholders included the American Academy of Clinical Neuropsychology/American Board of Clinical Neuropsychology, the National Academy of Neuropsychology, Division 40 of the American Psychological Association, the American Board of Professional Neuropsychology, and the American Psychological Association Services, Inc. The group reviewed literature; collated federal, regional, and state regulations and information from insurers; and surveyed practitioners to identify best practices. RESULTS Literature indicates that TeleNP may offer reliable and valid assessments, but clinicians need to consider limitations, develop new informed consent procedures, report modifications of standard procedures, and state limitations to diagnostic conclusions and recommendations. Specific limitations affect TeleNP assessments of older adults, younger children, individuals with limited access to technology, and individuals with other individual, cultural, and/or linguistic differences. TeleNP may be contraindicated or infeasible given specific patient characteristics, circumstances, and referral questions. Considerations for billing TeleNP services are offered with reservations that clinicians must verify procedures independently. Guidance about technical issues and "tips" for TeleNP procedures are provided. CONCLUSION This document provides provisional guidance with links to resources and established guidelines for telepsychology. Specific recommendations extend these practices to TeleNP. These recommendations may be revised as circumstances evolve, with updates posted continuously at IOPC.online.
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Hammers DB, Stolwyk R, Harder L, Cullum CM. A survey of international clinical teleneuropsychology service provision prior to and in the context of COVID-19. Clin Neuropsychol 2020; 34:1267-1283. [PMID: 32844714 DOI: 10.1080/13854046.2020.1810323] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Objective: Despite expansion of telecommunication strategies across health services and data supporting feasibility of videoconference-based neuropsychological assessment, relatively little is known about teleneuropsychology (TeleNP) use in practice. The current COVID-19 pandemic provides an opportunity for greater use of TeleNP and understanding of neuropsychologists' experience with this unique assessment medium.Methods: During the course of a no-cost global webinar related to practical/ethical considerations of TeleNP practice, attendees were invited to engage in a 26-question survey about their TeleNP use and related COVID-19 concerns. TeleNP practices before the COVID-19 pandemic and early on during the global outbreak were queried among survey participants, along with examination of TeleNP intentions following COVID-19.Results: Multiple countries were represented across five continents, with two-thirds of respondents being from the United States. Approximately one-fourth of respondents reported using TeleNP for clinical interview, feedback, and intervention prior to the onset of the COVID-19 pandemic, and approximately one-tenth of individuals used TeleNP for testadministration. Increased use of TeleNP for clinical interview, feedback, and intervention was reported within the first few weeks of the global COVID-19 outbreak, though the use of TeleNP for testing remained relatively unchanged. Most respondents indicated an intention for future use of TeleNP.Conclusions: Our findings suggest the use of TeleNP is increasing, although use of remote TeleNP testing is still developing. Findings also illustrate increasing use of TeleNP in the context of the COVID-19 pandemic and encourage follow-up investigation in future studies to understand the changing practices and rates of TeleNP provision over time.
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Tarkenton T, Presley C, Hynan LS, Miller S, Silver CH, Didehbani N, Cullum CM. A-43 Post-Traumatic Stress Symptoms in Sport-Related Concussion and Orthopedic Injury: An Initial Comparison. Arch Clin Neuropsychol 2020. [DOI: 10.1093/arclin/acaa036.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Objective
Few studies have compared psychological responses to injury following sport-related concussion versus injury in general. The aim of this pilot investigation was to explore whether trauma-related stress symptoms differ between adolescents with sport-related concussion (SRC) vs. orthopedic injury (OI).
Method
Participants age 12-18 with SRC (n=48) or OI (n=12) presented to specialty clinics in the North Texas Concussion Registry (ConTex) within 21 days of injury (M= 6.7). Total scores from the PTSD Checklist for DSM-5 (PCL-5) were calculated (range=0-80). Independent t-test compared PCL-5 symptom scores between SRC and OI, and post-hoc analyses examined frequency of symptoms reported within each group.
Results
There was no significant difference between mean PCL-5 scores in SRC and OI groups, and both obtained scores above the typical cutoff for PTSD, defined as scores >30 (range= 0-46; SRC=10%, OI=16%). Most commonly reported symptoms for both SRC and OI were sleep problems, feeling jumpy, and being “super alert.” SRC subjects were more likely to report difficulty concentrating (SRC=42%; OI=16%), while OI subjects were more likely to report feeling distant from other people (OI=50%; SRC=20%).
Conclusions
While total post-traumatic stress symptoms may not differ between SRC and OI groups, there may be differences in individual trauma-related symptoms based upon the nature of injury. Both injury groups may be susceptible to sleep difficulties and hypervigilance, yet SRC individuals may experience more cognitive complaints, while OI may report more feelings of isolation. Furture studies will need to use the PCL-5 with larger sample sizes and recovery indices to provide a more detailed comparison of the injury groups.
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Carpenter CM, Zynda AJ, Stokes MA, Chung JS, Cullum CM, Miller SM. A-07 The Impact of Learning Disorders on Clinical Measures Following Concussion. Arch Clin Neuropsychol 2020. [DOI: 10.1093/arclin/acaa036.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Objective
To examine differences in clinical measures between adolescents with dyslexia, ADD/ADHD, and those without a learning disorder (LD) following concussion.
Method
Data from the North Texas Concussion Registry (ConTex) were extracted. Participants ages 10–18 with a diagnosed concussion within 30 days of enrollment were included and categorized based on self-reported prior diagnosis of dyslexia, ADD/ADHD, and no history of LD. ImPACT, King-Devick (KD), SCAT-5 symptom log, Patient Health Questionnaire (PHQ-8), and Generalized Anxiety Disorder (GAD-7) scale were compared between groups using a one-way ANOVA followed by a Tukey test for multiple comparisons.
Results
Of 993 eligible participants, 68 had dyslexia, 141 had ADD/ADHD, and 784 had no history of LD. There were significantly more male participants in the ADD/ADHD group compared to the no LD group (64.5% vs. 50.3%, p = 0.002). No other demographic differences were noted between groups. In the dyslexia group, SCAT-5 symptom score was higher (36.22 vs. 28.27, p = 0.037) and ImPACT visual motor control was lower compared to the no LD group (28.87 vs. 32.99, p = 0.027). In the ADD/ADHD group, ImPACT symptom score was higher (30.69 vs. 20.94, p < 0.001) and visual motor control was lower compared to the no LD group (30.05 vs. 32.99, p = 0.009). KD time (62.1 sec), PHQ-8 (5.79), and GAD-7 (5.06) were higher in the ADD/ADHD group compared to the no LD group (56.5 sec, 4.32, 3.56; p = 0.022, p = 0.003, p = 0.002).
Conclusions
Differences in clinical measures were seen in participants with a history of dyslexia and ADD/ADHD that may aid providers in their evaluation following adolescent concussion.
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Presley C, Meredith-Duliba T, Tarkenton T, Stokes M, Miller S, Bell K, Batjer H, Cullum CM. A-32 Acute Concussive Symptom Profiles in Adolescents and Young Adults with History of Depression and Anxiety. Arch Clin Neuropsychol 2020. [DOI: 10.1093/arclin/acaa036.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objective
The aims of this study are (1) to examine the clinical symptom profiles of individuals with depression and/or anxiety history following a concussion and (2) to compare profile differences across groups.
Method
Participants aged 12-25 (n=129, mean=15.6) with premorbid diagnoses of depression (n=24), anxiety (n=50), or depression+anxiety (n=55) were evaluated within 21 days after sustaining a concussion as part of the North Texas Concussion Registry (ConTex) using the Post-Concussion Symptom Scale (PCSS). Following the model described by Kontos and Collins (2014), symptom clusters were derived from the PCSS to create six domains (cognitive/fatigue, vestibular, ocular, posttraumatic migraine, anxiety/mood, cervical). ANOVAs with Tukey’s post-hoc tests were conducted to compare domain symptom severity and total symptom severity across groups.
Results
There were no demographic differences between groups. A single symptom profile was prominent across each group, with the primary, secondary, and tertiary symptomatic domains being posttraumatic migraine, ocular, and cognitive/fatigue, respectively. Across each domain the depression+anxiety group was most symptomatic, followed in order by the depression and anxiety groups. The depression+anxiety group reported significantly higher anxiety/mood (M=2.0 vs. M=1.3) and cognitive/fatigue (M=2.9 vs M=2.1) symptom severity compared to the anxiety group. Group differences on total symptom severity approached significance (F=2.83, p=.06).
Conclusions
The observed symptom profiles suggest that the acute-concussive response is similar in adolescents and young adults with history of depression and/or anxiety. Multiple premorbid conditions, such as depression and anxiety, appear to magnify overall symptom severity. Further research is warranted to understand the relationship between symptom burden and premorbid mental health factors.
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Schaffet J, Didehbani N, LoBue C, Hart J, Cullum CM. A-37 Neuropsychological Functioning In Cognitively Normal And Impaired Aging NFL Retirees. Arch Clin Neuropsychol 2020. [DOI: 10.1093/arclin/acaa036.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objective
Identify differences in neuropsychological (NP) functioning between older (≥ 50) National Football League (NFL) retirees and age-matched controls, and examine whether differences correlate to head-injury exposure.
Method
NFL retirees were diagnosed with normal cognition (n = 20), mild cognitive impairment (n = 19), or dementia (n = 5) using Jak and Bondi (2009) criteria and clinical consensus. Retirees were age-matched to either healthy controls (n = 18) or clinical controls with MCI (n = 21) or dementia (n = 5). MANCOVAs and partial correlations covarying for age and education compared retiree’s NP performances to controls, and examined whether differences in NP measures were correlated with number of concussions, or games and years played in the NFL.
Results
Cognitively normal (CN) retirees displayed lower processing speed, naming, and verbal memory (p’s < .05) than CN controls. Impaired retirees displayed worse processing speed and naming than impaired controls, but better verbal memory (p’s < .05). Only lower verbal memory performance in CN retirees significantly correlated with number of games (r = −.60) and years played (r = −.54).
Conclusions
Aging CN and impaired retirees performed worse on single measures of processing speed and naming, but their performances did not correlate to head-injury exposure. Verbal memory performance varied between CN (worse than controls) and impaired retirees (better than controls). Overall, results suggest some aging NFL players may be at risk for reduced verbal memory, but this relationship could diminish following onset of MCI. No clear dose-response relationship was observed between head-injury exposure and NP functioning. Future studies should examine longitudinal trajectories of NP performances in larger samples to elucidate these findings.
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Didehbani N, Silver CH, Hicks C, Bunt S, Tarkenton T, Rossetti H, Cullum CM. Concussion Symptoms by Mechanism of Injury in Elementary School–Aged Children. JOURNAL OF PEDIATRIC NEUROPSYCHOLOGY 2020. [DOI: 10.1007/s40817-020-00087-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zhang L, Pasha EP, Liu J, Xing CY, Cardim D, Tarumi T, Womack K, Hynan LS, Cullum CM, Zhang R. Steady-state cerebral autoregulation in older adults with amnestic mild cognitive impairment: linear mixed model analysis. J Appl Physiol (1985) 2020; 129:377-385. [PMID: 32614686 DOI: 10.1152/japplphysiol.00193.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
We examined whether the efficacy of steady-state cerebral autoregulation (CA) is reduced in older adults with amnestic mild cognitive impairment (aMCI), a prodromal stage of clinical Alzheimer disease (AD). Forty-two patients with aMCI and 24 cognitively normal older adults (NC) of similar age, sex, and education underwent stepwise decreases and increases in mean arterial pressure (MAP) induced by intravenous infusion of sodium nitroprusside and phenylephrine, respectively. Changes in cerebral blood flow (CBF) were measured repeatedly in the internal carotid and vertebral artery. Linear mixed modeling, including random effects of both individual intercept and regression slope, was used to quantify the MAP-CBF relationship accounting for nonindependent, repeated CBF measures. Changes in end-tidal CO2 (EtCO2) associated with changes in MAP were also included in the model to account for their effects on CBF. Marginal mean values of MAP were reduced by 13-14 mmHg during sodium nitroprusside and increased by 20-24 mmHg during phenylephrine infusion in both groups with similar doses of drug infusion. A steeper slope of changes in CBF in response to changes in MAP was observed in aMCI relative to NC, indicating reduced efficacy of CA (MAP × Group, P = 0.040). These findings suggest that cerebrovascular dysfunction may occur early in the development of AD.NEW & NOTEWORTHY Cerebral autoregulation is a fundamental regulatory mechanism to protect brain perfusion against changes in blood pressure that, if impaired, may contribute to the development of Alzheimer's disease. Using a linear mixed model, we demonstrated that the efficacy of cerebral autoregulation, assessed during stepwise changes in arterial pressure, was reduced in individuals with amnestic mild cognitive impairment, a prodromal stage of Alzheimer's disease. These findings support the hypothesis that cerebrovascular dysfunction may be an important underlying pathophysiological mechanism for the development of clinical Alzheimer's disease.
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Wu EM, El Ahmadieh TY, Kafka B, Caruso JP, Neeley OJ, Plitt AR, Aoun SG, Olson D, Ruchinskas RA, Cullum CM, Welch BG, Batjer HH, White JA. Clinical outcomes of normal pressure hydrocephalus in 116 patients: objective versus subjective assessment. J Neurosurg 2020; 132:1757-1763. [PMID: 30978684 DOI: 10.3171/2019.1.jns181598] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 01/18/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Objective assessment tests are commonly used to predict the response to ventriculoperitoneal (VP) shunting in patients with normal pressure hydrocephalus (NPH). Whether subjective reports of improvement after a lumbar drain (LD) trial can predict response to VP shunting remains controversial. The goal in this study was to compare clinical characteristics, complication rates, and shunt outcomes of objective and subjective LD responders who underwent VP shunt placement. METHODS This was a retrospective review of patients with NPH who underwent VP shunt placement after clinical improvement with the LD trial. Patients who responded after the LD trial were subclassified into objective LD responders and subjective LD responders. Clinical characteristics, complication rates, and shunt outcomes between the 2 groups were compared with chi-square test of independence and t-test. RESULTS A total of 116 patients received a VP shunt; 75 were objective LD responders and 41 were subjective LD responders. There was no statistically significant difference in patient characteristics between the 2 groups, except for a shorter length of stay after LD trial seen with subjective responders. The complication rates after LD trial and VP shunting were not significantly different between the 2 groups. Similarly, there was no significant difference in shunt response between objective and subjective LD responders. The mean duration of follow-up was 1.73 years. CONCLUSIONS Reports of subjective improvement after LD trial in patients with NPH can be a reliable predictor of shunt response. The currently used objective assessment scales may not be sensitive enough to detect subtle changes in symptomatology after LD trial.
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LoBue C, Schaffert J, Cullum CM, Peters ME, Didehbani N, Hart J, White CL. Clinical and neuropsychological profile of patients with dementia and chronic traumatic encephalopathy. J Neurol Neurosurg Psychiatry 2020; 91:586-592. [PMID: 32332103 PMCID: PMC7231625 DOI: 10.1136/jnnp-2019-321567] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/08/2019] [Accepted: 01/12/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To determine whether subjects with chronic traumatic encephalopathy (CTE) and dementia have distinct clinical features compared to subjects with pathologically confirmed Alzheimer's disease (AD). METHODS Among 339 subjects assessed for CTE in the National Alzheimer's Coordinating Center dataset, 6 subjects with CTE and 25 subjects with AD neuropathologic change matched for age (±5 years) and sex were identified. All subjects had a clinical diagnosis of dementia. Neurological examination, neuropsychological testing and emotional/behavioural data were compared between CTE and AD subjects at the time of dementia diagnosis and last clinical visit near death. RESULTS A history of traumatic brain injury with loss of consciousness (LOC) was reported in one CTE and one AD subject; information about injuries without LOC or multiple injuries was unavailable. CTE and AD subjects did not differ significantly at the time of diagnosis or last visit on the Unified Parkinson's Disease Rating Scale-Motor Exam, global measures of cognitive functioning (Mini-Mental State Exam and Clinical Dementia Rating Scale), emotional/behaviour symptoms as assessed with the Neuropsychiatric Inventory questionnaire or across neuropsychological measures. All CTE participants had co-occurring neuropathologic processes, including AD and most had TAR DNA-binding protein 43 (TDP-43) neuropathology. CONCLUSIONS CTE pathology was rare in a large multicentre national dataset, and when present, was accompanied by AD and TDP-43 pathologies. CTE was not associated with a different clinical presentation from AD or with greater cognitive impairment or neurobehavioral symptoms. These findings suggest that CTE may not have a distinct clinical profile when other neuropathologic processes are coexistent with CTE pathology.
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Schaffert J, LoBue C, White CL, Wilmoth K, Didehbani N, Lacritz L, Nguyen T, Peters ME, Fields L, Li C, Cullum CM. Risk factors for earlier dementia onset in autopsy-confirmed Alzheimer's disease, mixed Alzheimer's with Lewy bodies, and pure Lewy body disease. Alzheimers Dement 2020; 16:524-530. [PMID: 32043803 PMCID: PMC7067630 DOI: 10.1002/alz.12049] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 09/18/2019] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Clinical Alzheimer's disease (AD) and dementia with Lewy bodies often have mixed AD and Lewy pathology, making it difficult to delineate risk factors. METHODS Six risk factors for earlier dementia onset due to autopsy-confirmed AD (n = 647), mixed AD and Lewy body disease (AD + LBD; n = 221), and LBD (n = 63) were entered into multiple linear regressions using data from the National Alzheimer's Coordinating Center. RESULTS In AD and AD + LBD, male sex and apolipoprotein E (APOE) ɛ4 alleles each predicted a 2- to 3-year-earlier onset and depression predicted a 3-year-earlier onset. In LBD, higher education predicted earlier onset and depression predicted a 5.5-year-earlier onset. DISCUSSION Male sex and APOE ɛ4 alleles increase risk for earlier dementia onset in AD but not LBD. Depression increases risk for earlier dementia onset in AD, LBD, and AD + LBD, but evaluating the course, treatment, and severity is needed in future studies.
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Lisanby SH, McClintock SM, Alexopoulos G, Bailine SH, Bernhardt E, Briggs MC, Cullum CM, Deng ZD, Dooley M, Geduldig ET, Greenberg RM, Husain MM, Kaliora S, Knapp RG, Latoussakis V, Liebman LS, McCall WV, Mueller M, Petrides G, Prudic J, Rosenquist PB, Rudorfer MV, Sampson S, Teklehaimanot AA, Tobias KG, Weiner RD, Young RC, Kellner CH. Neurocognitive Effects of Combined Electroconvulsive Therapy (ECT) and Venlafaxine in Geriatric Depression: Phase 1 of the PRIDE Study. Am J Geriatr Psychiatry 2020; 28:304-316. [PMID: 31706638 PMCID: PMC7050408 DOI: 10.1016/j.jagp.2019.10.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/04/2019] [Accepted: 10/04/2019] [Indexed: 11/16/2022]
Abstract
OBJECTIVE There is limited information regarding the tolerability of electroconvulsive therapy (ECT) combined with pharmacotherapy in elderly adults with major depressive disorder (MDD). Addressing this gap, we report acute neurocognitive outcomes from Phase 1 of the Prolonging Remission in Depressed Elderly (PRIDE) study. METHODS Elderly adults (age ≥60) with MDD received an acute course of 6 times seizure threshold right unilateral ultrabrief pulse (RUL-UB) ECT. Venlafaxine was initiated during the first treatment week and continued throughout the study. A comprehensive neurocognitive battery was administered at baseline and 72 hours following the last ECT session. Statistical significance was defined as a two-sided p-value of less than 0.05. RESULTS A total of 240 elderly adults were enrolled. Neurocognitive performance acutely declined post ECT on measures of psychomotor and verbal processing speed, autobiographical memory consistency, short-term verbal recall and recognition of learned words, phonemic fluency, and complex visual scanning/cognitive flexibility. The magnitude of change from baseline to end for most neurocognitive measures was modest. CONCLUSION This is the first study to characterize the neurocognitive effects of combined RUL-UB ECT and venlafaxine in elderly adults with MDD and provides new evidence for the tolerability of RUL-UB ECT in an elderly sample. Of the cognitive domains assessed, only phonemic fluency, complex visual scanning, and cognitive flexibility qualitatively declined from low average to mildly impaired. While some acute changes in neurocognitive performance were statistically significant, the majority of the indices as based on the effect sizes remained relatively stable.
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Schaffert J, LoBue C, Fields L, Wilmoth K, Didehbani N, Hart J, Cullum CM. Neuropsychological functioning in ageing retired NFL players: a critical review. Int Rev Psychiatry 2020; 32:71-88. [PMID: 31592681 DOI: 10.1080/09540261.2019.1658572] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent discovery of chronic traumatic encephalopathy in former National Football League (NFL) players has led to a surge of papers investigating cognitive functioning in these former athletes. This critical review of the literature focused on the neuropsychological functioning in these ageing athletes, and included 22 articles published between 2013 and 2019, of which 13 reported on neuroradiological imaging and four focused on dose-response relationships of repetitive head injury on cognitive outcomes. Four studies suggest higher prevalence of MCI and neurodegenerative disease among NFL retirees, although a quantifiable risk and prevalence of cognitive impairment and dementia in these players remains unknown. Decreased verbal memory has been found in some players across multiple studies, though with unknown clinical significance due to small sample sizes, unreported effect sizes, and absence of longitudinal data. Studies investigating a dose-response relationship between cognitive decline and head injury have generated mixed findings utilizing various measures of head injury exposure. Neuroradiological findings are inconsistent, but suggest that some NFL players may be at greater risk for reduced white matter integrity. Future research is needed to understand the relationship between sports-related concussions and the risk of long-term cognitive decline and neurodegenerative disease in ageing NFL players.
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Cullum CM, Bunt S, Hicks C, Didehbani N, Miller S, Vargas B, Sabo T, Bell K, Batjer HH. The North Texas Concussion Registry (ConTex). BMJ Open 2020; 10:e032345. [PMID: 31900269 PMCID: PMC6955548 DOI: 10.1136/bmjopen-2019-032345] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 10/25/2019] [Accepted: 12/10/2019] [Indexed: 11/03/2022] Open
Abstract
PURPOSE The North Texas Concussion Registry (ConTex) was established in 2015 as a multi-institutional collaboration intended to study risk factors, recovery patterns and clinical outcomes associated with concussion across the lifespan, with a particular emphasis on sport-related concussion. PARTICIPANTS Prospective enrolment of individuals who sustained a concussion within the past 6 months who were seen at one of four North Texas ConTex concussion clinics which employ common diagnostic criteria and assessment metrics to evaluate effects of a concussion as well as longitudinal tracking of recovery. FINDINGS TO DATE The ConTex database and multidisciplinary oversight team has been established, and over 1700 participants aged 5-88 years have been enrolled. A majority of concussions were sport-related (60%), with a mean age of 17.5 years and similar numbers of males and females. Three-month follow-up compliance has been excellent (86%), with a majority of subjects reporting good recovery by that time. ConTex has provided a rich data source for multiple research projects focused on concussion characteristics, risk factors and outcomes, and led to the development of a statewide youth concussion registry. FUTURE PLANS ConTex data are being analysed to add to the body of knowledge regarding concussion mechanisms, factors related to recovery and improving outcomes for concussion patients. ConTex will serve as a platform for future treatment studies and may serve as a model for other concussion surveillance programmes.
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El Ahmadieh TY, Wu EM, Kafka B, Caruso JP, Neeley OJ, Plitt A, Aoun SG, Olson DM, Ruchinskas RA, Cullum CM, Barnett S, Welch BG, Batjer HH, White JA. Lumbar drain trial outcomes of normal pressure hydrocephalus: a single-center experience of 254 patients. J Neurosurg 2020; 132:306-312. [PMID: 30611143 DOI: 10.3171/2018.8.jns181059] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 08/03/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVE A short-term lumbar drain (LD) trial is commonly used to assess the response of normal pressure hydrocephalus (NPH) patients to CSF diversion. However, it remains unknown whether the predictors of passing an LD trial match the predictors of improvement after ventriculoperitoneal shunting. The aim of this study was to examine outcomes, complication rates, and associations between predictors and outcomes after an LD trial in patients with NPH. METHODS The authors retrospectively reviewed the records of 254 patients with probable NPH who underwent an LD trial between March 2008 and September 2017. Multivariate regression models were constructed to examine predictors of passing the LD trial. Complications associated with the LD trial procedure were recorded. RESULTS The mean patient age was 77 years and 56.7% were male. The mean durations of gait disturbance, cognitive decline, and urinary incontinence were 29 months, 32 months, and 28 months, respectively. Of the 254 patients, 30% and 16% reported objective and subjective improvement after the LD trial, respectively. Complications included a sheared LD catheter, meningitis, lumbar epidural abscess, CSF leak at insertion site, transient lower extremity numbness, slurred speech, refractory headaches, and hyponatremia. Multivariate analyses using MAX-R revealed that a prior history of stroke predicted worse outcomes, while disproportionate subarachnoid spaces (uneven enlargement of supratentorial spaces) predicted better outcomes after the LD trial (r2 = 0.12, p < 0.05). CONCLUSIONS The LD trial is generally safe and well tolerated. The best predictors of passing the LD trial include a negative history of stroke and having disproportionate subarachnoid spaces.
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Thomas BP, Tarumi T, Sheng M, Tseng B, Womack KB, Cullum CM, Rypma B, Zhang R, Lu H. Brain Perfusion Change in Patients with Mild Cognitive Impairment After 12 Months of Aerobic Exercise Training. J Alzheimers Dis 2020; 75:617-631. [PMID: 32310162 PMCID: PMC8062932 DOI: 10.3233/jad-190977] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Aerobic exercise (AE) has recently received increasing attention in the prevention of Alzheimer's disease (AD). There is some evidence that it can improve neurocognitive function in elderly individuals. However, the mechanism of these improvements is not completely understood. In this prospective clinical trial, thirty amnestic mild cognitive impairment participants were enrolled into two groups and underwent 12 months of intervention. One group (n = 15) performed AE training (8M/7F, age = 66.4 years), whereas the other (n = 15) performed stretch training (8M/7F, age = 66.1 years) as a control intervention. Both groups performed 25-30 minutes training, 3 times per week. Frequency and duration were gradually increased over time. Twelve-month AE training improved cardiorespiratory fitness (p = 0.04) and memory function (p = 0.004). Cerebral blood flow (CBF) was measured at pre- and post-training using pseudo-continuous-arterial-spin-labeling MRI. Relative to the stretch group, the AE group displayed a training-related increase in CBF in the anterior cingulate cortex (p = 0.016). Furthermore, across individuals, the extent of memory improvement was associated with CBF increases in anterior cingulate cortex and adjacent prefrontal cortex (voxel-wise p < 0.05). In contrast, AE resulted in a decrease in CBF of the posterior cingulate cortex, when compared to the stretch group (p = 0.01). These results suggest that salutary effects of AE in AD may be mediated by redistribution of blood flow and neural activity in AD-sensitive regions of brain.
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Wilmoth K, Curcio N, Tarkenton T, Meredith-Duliba T, Tan A, Didehbani N, Hynan LS, Miller SM, Bell KR, Cullum CM. Utility of Brief Psychological Measures for Prediction of Prolonged Symptom Clearance in Concussed Student Athletes. Arch Clin Neuropsychol 2019; 36:430-436. [DOI: 10.1093/arclin/acz061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 08/14/2019] [Accepted: 10/05/2019] [Indexed: 12/12/2022] Open
Abstract
Abstract
Objective
Variability in recovery time following sport-related concussion (SRC) is poorly understood. We explored the utility of brief mood, anxiety, and sleep questionnaires as postinjury predictors of SRC symptom clearance in adolescents.
Method
At initial visit 0–2 weeks postinjury, concussed athletes aged 12–18 years self-reported injury/medical factors (prior concussion, loss of consciousness, amnesia, and concussion symptom severity) and were administered psychological symptom measures. At 3 months, medical record review determined return-to-play (RTP) date. Subjects were divided into two datasets, with the first utilized for developing cutoff scores and then validated with the second dataset.
Results
A total of 64% of the 141 participants had early RTP (within 21 days postinjury), and 23% had late RTP (postinjury day 30 or later). The Generalized Anxiety Disorder Screener (GAD-7, M = 2.1, SD = 3.1) was the only significant predictor (p = .001), with a 1.4-fold [95% CI 1.2–1.8] increased risk for every point. No other factors in the full model discriminated recovery groups (ps > .05). Receiver operating characteristic curve analysis derived a GAD-7 cut score ≥3 (sensitivity= 56.7%, specificity = 74.2%, AUCs = 0.63–0.79, ps < .001).
Conclusions
Postconcussion anxiety symptoms may help identify individuals at increased risk for prolonged recovery.
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Bailey KC, Burmaster SA, Schaffert J, LoBue C, Vela D, Rossetti H, Cullum CM. Associations of Race-Ethnicity and History of Traumatic Brain Injury With Age at Onset of Alzheimer's Disease. J Neuropsychiatry Clin Neurosci 2019; 32:280-285. [PMID: 31619118 PMCID: PMC7162699 DOI: 10.1176/appi.neuropsych.19010002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This study examined whether a history of traumatic brain injury (TBI) is associated with age at onset of Alzheimer's disease (AD) in three racial-ethnic groups. METHODS Data from 7,577 non-Hispanic Caucasian, 792 African American, and 870 Hispanic participants with clinically diagnosed AD were obtained from the National Alzheimer's Coordinating Center. Participants were categorized by the presence or absence of self-reported remote history of TBI (>1 year before diagnosis of AD) with loss of consciousness (LOC) (TBI+) or no history of TBI with LOC (TBI-). Any group differences in education; sex; APOE ε4 alleles; family history of dementia; or history of depression, stroke, hypertension, hypercholesterolemia, and diabetes were included in analyses of covariance comparing clinician-estimated age at AD symptom onset for the TBI+ and TBI- groups. RESULTS AD onset occurred 2.3 years earlier for non-Hispanic Caucasians (F=30.49, df=1, 7,572, p<0.001) and 3.4 years earlier for African Americans (F=5.17, df=1, 772, p=0.023) in the TBI+ group. In the Hispanic cohort, females in the TBI+ group had AD onset 5.6 years earlier, compared with females in the TBI- group (F=6.96, df=1, 865, p=0.008); little difference in age at AD onset was observed for Hispanic males with and without a TBI history. CONCLUSIONS A history of TBI with LOC was associated with AD onset 2-3 years earlier in non-Hispanic Caucasians and African Americans and an onset nearly 6 years earlier in Hispanic females; no association was observed in Hispanic males. Further work in underserved populations is needed to understand possible underlying mechanisms for these differences.
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Nguyen TP, Schaffert J, LoBue C, Womack KB, Hart J, Cullum CM. Traumatic Brain Injury and Age of Onset of Dementia with Lewy Bodies. J Alzheimers Dis 2019; 66:717-723. [PMID: 30320582 DOI: 10.3233/jad-180586] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Traumatic brain injury (TBI) with loss of consciousness (LOC) has been associated with earlier onset of mild cognitive impairment, frontotemporal dementia, Parkinson's disease, and Alzheimer's disease (AD), but has not been examined as a risk factor for earlier onset of dementia with Lewy bodies (DLB). OBJECTIVE The purpose of this study was to assess the association between a history of TBI and the age of onset of DLB. METHOD Data from 576 subjects with a clinical diagnosis of DLB were obtained from the National Alzheimer's Coordinating Center (NACC). Analyses of Covariance examined whether self-reported history of remote TBI with LOC (i.e., >1 year prior to the first Alzheimer's Disease Center visit) was associated with earlier DLB symptom onset. RESULTS Controlling for sex, those with a history of remote TBI had an approximately 1.5-year earlier clinician-estimated age of onset (F = 0.87, p = 0.35) and 0.75-years earlier age of diagnosis (F = 0.14, p = 0.71) of DLB compared to those without a history of TBI, though the differences did not reach statistical significance. Analysis of subjects with autopsy-confirmed diagnoses was underpowered due to the low number of TBI+ subjects. CONCLUSIONS Remote TBI with LOC was not significantly associated with DLB onset, despite being a significant risk factor for cognitive decline and earlier age of onset in other neurodegenerative conditions. Replication of these results using a larger cohort of DLB subjects with and without a TBI history who have undergone autopsy is indicated, as our TBI+ subjects did show a slightly earlier onset of about 1.5 years. Further investigations into other potential DLB risk factors are also warranted.
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Chung JS, Zynda AJ, Didehbani N, Hicks C, Hynan LS, Miller SM, Bell KR, Cullum CM. Association Between Sleep Quality and Recovery Following Sport-Related Concussion in Pediatrics. J Child Neurol 2019; 34:639-645. [PMID: 31113274 DOI: 10.1177/0883073819849741] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Our objective was to determine the association between sleep quality, symptom severity, and recovery following sport-related concussion in pediatric athletes. A review of data from the North Texas Concussion Network Prospective Registry (ConTex) was performed. Participants were diagnosed with a sport-related concussion and were ≤18 years old. Participants were categorized based on their initial clinic visit Pittsburgh Sleep Quality Index composite score (0-21) into good sleep quality (GS≤5) and poor sleep quality (PS>5) groups. The PS group reported higher median total symptom scores at 3-month follow-up (3.0 vs 0.0, P < .01) and took more than a median of 2 weeks longer to recover compared to the GS group (35.0 days vs 20.0 days, P < .01). Poor sleep quality was strongly associated with greater symptom severity and longer time to recovery following sport-related concussion. Early recognition of concussed athletes with poor sleep quality at initial clinic visit may help predict prolonged recovery.
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Schaffert J, LoBue C, Presley C, Hynan L, Wilmoth K, Lacritz L, Hart J, Cullum CM. Predictors of Life Expectancy After an Alzheimer’s Disease Diagnosis in a National Multi-Center Autopsy-Confirmed Sample. Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz035.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Objective
Life expectancy varies between 3-12 years following the diagnosis of Alzheimer’s disease (AD) and is an important clinical question for patients and families. Current literature is limited by relatively small sample sizes and a reliance on clinical diagnoses. This study sought to evaluate predictors of AD life expectancy in a large autopsy-confirmed sample.
Methods
Baseline data from individuals 50 years and older clinically and neuropathologically diagnosed with AD (N=764) were obtained from the National Alzheimer’s Coordinating Center. Life expectancy was calculated in months from AD diagnosis to death. Nineteen variables (demographic, medical/health, disease severity, and psychiatric) obtained at dementia diagnosis were examined. Variables that showed significant differences in life expectancy using t-tests and Pearson correlations (14 of 19) were then entered into a forward multiple regression.
Results
Seven predictors in the model explained 27% of the variance in life expectancy (F= 40.7, R-squared= 0.267). Lower MMSE scores (β= 0.339, p < .001), male sex (β= -0.144, p < .001), older age (β= -0.130, p < .001), non-Hispanic Caucasian race/ethnicity (β= 0.115, p < .001), greater impairment on the Functional Activities Questionnaire (β= -0.091, p=.042), abnormal neurological/physical exam (β= -0.083, p=.011), and higher Neuropsychiatric Inventory Questionnaire total scores (β= -0.079, p=.016) predicted shorter life expectancy.
Conclusions
Global cognitive impairment, sex, age, race/ethnicity, functional impairment, abnormal neurological exam findings, and psychiatric symptoms explain a significant proportion of life expectancy following an AD diagnosis. Future studies should explore the relationship between life expectancy, specific neurological abnormalities, and psychiatric symptoms. These 7 predictors could potentially be used to predict life expectancy in individuals diagnosed with AD.
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Rossetti HC, Smith EE, Hynan LS, Lacritz LH, Cullum CM, Van Wright A, Weiner MF. Detection of Mild Cognitive Impairment Among Community-Dwelling African Americans Using the Montreal Cognitive Assessment. Arch Clin Neuropsychol 2019; 34:809-813. [PMID: 30517598 PMCID: PMC6930383 DOI: 10.1093/arclin/acy091] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/27/2018] [Accepted: 11/01/2018] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE To establish a cut score for the Montreal Cognitive Assessment (MoCA) that distinguishes mild cognitive impairment (MCI) from normal cognition (NC) in a community-based African American (AA) sample. METHODS A total of 135 AA participants, from a larger aging study, diagnosed MCI (n = 90) or NC (n = 45) via consensus diagnosis using clinical history, Clinical Dementia Rating score, and comprehensive neuropsychological testing. Logistic regression models utilized sex, education, age, and MoCA score to predict MCI versus NC. Receiver operating characteristic (ROC) curve analysis determined a cut score to distinguish MCI from NC based on optimal sensitivity, specificity, diagnostic accuracy, and greatest perpendicular distance above the identity line. ROC results were compared with previously published MoCA cut scores. RESULTS The MCI group was slightly older (MMCI = 64.76[5.87], MNC = 62.33[6.76]; p = .033) and less educated (MMCI = 13.07[2.37], MNC = 14.36[2.51]; p = .004) and had lower MoCA scores (MMCI=21.26[3.85], MNC = 25.47[2.13]; p < .001) than the NC group. Demographics were non-significant in regression models. The area under the curve (AUC) was significant (MoCA = .83, p < .01) and an optimal cut score of <24 maximized sensitivity (72%), specificity (84%), and provided 76% diagnostic accuracy. In comparison, the traditional cut score of <26 had higher sensitivity (84%), similar accuracy (76%), but much lower specificity (58%). CONCLUSIONS This study provides a MoCA cut score to help differentiate persons with MCI from NC in a community-dwelling AA sample. A cut score of <24 reduces the likelihood of misclassifying normal AA individuals as impaired than the traditional cut score. This study underscores the importance of culturally appropriate norms to optimize the utility of commonly used cognitive screening measures.
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Tarkenton T, Presley C, Didehbani N, Silver CH, Cullum CM. Comparing Acute Symptoms and Recovery Time Following Sports-Related Concussion Across School Age Groups. Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz026.44] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Purpose
Despite considerable research on pediatric sports-related concussion (SRC), few studies have analyzed groups from school-age through young adulthood. This study aimed to examine acute symptoms (i.e., emotional, physical, and cognitive) and recovery times across this age range.
Methods
Participants age 5–25 with SRC (n=611) presented to concussion clinics in the North Texas Concussion Registry within 2 weeks of injury. Subjects were stratified into 4 age groups: early elementary (age 5-9; n=19), late elementary (10–13; n=181), high school (14-17; n=384), and college (18-25; n=39). The Patient Health Questionnaire-9 (PHQ-9), General Anxiety Disorder-7 Item Scale (GAD-7), and concussion symptom log (Sx log), were administered. ANOVA was used to compare symptom scores and recovery times across groups.
Results
Differences were found on PHQ-9 scores (p=.05), with the early elementary and high school groups reporting significantly higher levels of depressive symptoms than the late elementary and college groups. No differences were seen on GAD-7 scores. Differences in Sx log severity scores were nonsignificant (p=.09), although scores increased with age (early: M=21.4, late=25.7, high school=30.0, college=35.5). Lastly, recovery time differed across groups (p=.008), with early elementary participants having the longest recovery (M=8.3 days) and the college group having the shortest (M=5.1 days).
Conclusion
Older age groups reported higher levels of acute post-concussion symptoms and more rapid recovery compared to younger age groups, suggesting that symptomatology and recovery time vary developmentally and the effects of age warrant consideration in young athletes.
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