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OBJECTIVE: To characterize and compare the neuropsychological profiles of patients with primary progressive apraxia of speech (PPAOS) and apraxia of speech with progressive agrammatic aphasia (AOS-PAA). METHOD: Thirty-nine patients with PPAOS and 49 patients with AOS-PAA underwent formal neurological, speech, language, and neuropsychological evaluations. Cognitive domains assessed included immediate and delayed episodic memory (Wechsler Memory Scale-Third edition; Logical Memory; Visual Reproduction; Rey Auditory Verbal Learning Test), processing speed (Trail Making Test A), executive functioning (Trail Making Test B; Delis-Kaplan Executive Functioning Scale - Sorting), and visuospatial ability (Rey-Osterrieth Complex Figure copy). RESULTS: The PPAOS patients were cognitively average or higher in the domains of immediate and delayed episodic memory, processing speed, executive functioning, and visuospatial ability. Patients with AOS-PAA performed more poorly on tests of immediate and delayed episodic memory and executive functioning compared to those with PPAOS. For every 1 unit increase in aphasia severity (e.g. mild to moderate), performance declined by 1/3 to 1/2 a standard deviation depending on cognitive domain. The degree of decline was stronger within the more verbally mediated domains, but was also notable in less verbally mediated domains. CONCLUSION: The study provides neuropsychological evidence further supporting the distinction of PPAOS from primary progressive aphasia and should be used to inform future diagnostic criteria. More immediately, it informs prognostication and treatment planning.
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Afasia Primária Progressiva , Afasia , Apraxias , Afasia Primária Progressiva/complicações , Afasia Primária Progressiva/diagnóstico , Apraxias/etiologia , Humanos , Idioma , Testes Neuropsicológicos , FalaRESUMO
OBJECTIVE: This study examined the relationship between patient performance on multiple memory measures and regional brain volumes using an FDA-cleared quantitative volumetric analysis program - Neuroreader™. METHOD: Ninety-two patients diagnosed with mild cognitive impairment (MCI) by a clinical neuropsychologist completed cognitive evaluations and underwent MR Neuroreader™ within 1 year of testing. Select brain regions were correlated with three widely used memory tests. Regression analyses were conducted to determine if using more than one memory measures would better predict hippocampal z-scores and to explore the added value of recognition memory to prediction models. RESULTS: Memory performances were most strongly correlated with hippocampal volumes than other brain regions. After controlling for encoding/Immediate Recall standard scores, statistically significant correlations emerged between Delayed Recall and hippocampal volumes (rs ranging from .348 to .490). Regression analysis revealed that evaluating memory performance across multiple memory measures is a better predictor of hippocampal volume than individual memory performances. Recognition memory did not add further predictive utility to regression analyses. CONCLUSIONS: This study provides support for use of MR Neuroreader™ hippocampal volumes as a clinically informative biomarker associated with memory performance, which is a critical diagnostic feature of MCI phenotype.
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Disfunção Cognitiva/diagnóstico por imagem , Memória/fisiologia , Neuroimagem/métodos , Software , Idoso , Idoso de 80 Anos ou mais , Encéfalo/diagnóstico por imagem , Cognição , Estudos de Coortes , Feminino , Hipocampo/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Transtornos da Memória/diagnóstico por imagem , Testes Neuropsicológicos , Estudos RetrospectivosRESUMO
This study examined the rate of producing alternating motion rates, sequential motion rates (SMRs), and repeated words in 27 individuals with the semantic variant of Primary Progressive Aphasia (svPPA). Only the rate of producing SMRs was significantly elevated in svPPA compared to controls. This may be associated with concomitant neuropsychiatric symptoms in svPPA, as correlation analysis showed a relationship between increased SMR rate and the Neuropsychiatric Inventory Questionnaire, which documented anxiety and disinhibition. Future studies will assess these findings in a larger cohort and work to better understand if this phenomenon is a manifestation of behavioral and/or motor changes.
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Afasia Primária Progressiva/fisiopatologia , Semântica , Idoso , Afasia Primária Progressiva/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , FalaRESUMO
BACKGROUND: Hypertension is a risk factor for cerebrovascular disease and cognitive impairment. Women with hypertensive episodes during pregnancy report variable neurocognitive changes within the first decade following the affected pregnancy. However, long-term follow-up of these women into their postmenopausal years has not been conducted. OBJECTIVE: The aim of this study was to examine whether women with a history of preeclampsia were at increased risk of cognitive decline 35-40 years after the affected pregnancy. STUDY DESIGN: Women were identified and recruited through the medical linkage, population-based Rochester Epidemiologic Project. Forty women with a history of preeclampsia were age- and parity-matched to 40 women with a history of normotensive pregnancy. All women underwent comprehensive neuropsychological assessment and completed self-report inventories measuring mood, ie, depression, anxiety, and other symptoms related to emotional state. Scores were compared between groups. In addition, individual cognitive scores were examined by neuropsychologists and a neurologist blinded to pregnancy status, and a clinical consensus diagnosis of normal, mild cognitive impairment, or dementia for each participant was conferred. RESULTS: Age at time of consent did not differ between preeclampsia (59.2 [range 50.9-71.5] years) and normotensive (59.6 [range 52.1-72.2] years) groups, nor did time from index pregnancy (34.9 [range 32.0-47.2] vs 34.5 [range 32.0-46.4] years, respectively). There were no statistically significant differences in raw scores on tests of cognition and mood between women with histories of preeclampsia compared to women with histories of normotensive pregnancy. However, a consensus diagnosis of mild cognitive impairment or dementia trended toward greater frequency in women with histories of preeclampsia compared to those with normotensive pregnancies (20% vs 8%, P = .10) and affected more domains among the preeclampsia group (P = .03), most strongly related to executive dysfunction (d = 1.96) and verbal list learning impairment (d = 1.93). CONCLUSION: These findings suggest a trend for women with a history of preeclampsia to exhibit more cognitive impairment later in life than those with a history of normotensive pregnancy. Furthermore, the pattern of cognitive changes is consistent with that observed with vascular disease/white matter pathology.
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Disfunção Cognitiva/etiologia , Pré-Eclâmpsia/fisiopatologia , Afeto , Idoso , Ansiedade , Disfunção Cognitiva/epidemiologia , Depressão , Feminino , Humanos , Hipertensão/fisiopatologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Gravidez , AutorrelatoRESUMO
Meningiomas are primary intracranial tumors that are often asymptomatic. To our knowledge, no study has attempted to describe neurocognitive function in patients with incidentally-discovered meningioma. We utilized the Mayo Clinic Study of Aging (MCSA), which is a population-based sample of Olmsted County, Minnesota residents that includes neuropsychological testing and brain MRI approximately every 15 months. Using a text search of radiologists' notes of 2402 MCSA individuals (mean age 77 years, scanned between 2004 and 2014) we identified 48 eligible subjects (2%) who had at least one meningioma. Most meningiomas were small (90% <3 cm). We matched each of the 48 subjects to 5 non-demented MCSA controls (n = 240) on age, sex, and education. Cognitive domains assessed included memory, attention-executive function, language, and visuospatial. More women (67%) had a meningioma than men (33%). Groups did not differ on prevalence of Mild Cognitive Impairment (Meningioma = 19%, Controls = 13%). Across cognitive domains, we observed similar performance for the two groups (p's ≥ 0.21). Subtle differences emerged in memory and language domains (p = 0.05 and p = 0.11) when we divided the Meningioma group by tumor location, wherein the small group with an infratentorial tumor performed more poorly than controls globally as well as on select memory and language measures. Our findings suggest that small meningiomas are generally cognitively benign, but that may change as the tumor evolves, and might be impacted by other factors such as meningioma location.
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Transtornos Cognitivos/etiologia , Neoplasias Meníngeas/complicações , Meningioma/complicações , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Apolipoproteínas E/genética , Atenção/fisiologia , Transtornos Cognitivos/epidemiologia , Planejamento em Saúde Comunitária , Feminino , Humanos , Idioma , Estudos Longitudinais , Imageamento por Ressonância Magnética , Masculino , Memória/fisiologia , Neoplasias Meníngeas/diagnóstico por imagem , Neoplasias Meníngeas/epidemiologia , Neoplasias Meníngeas/genética , Meningioma/diagnóstico por imagem , Meningioma/epidemiologia , Meningioma/genética , Pessoa de Meia-Idade , Testes Neuropsicológicos , Percepção Visual/genéticaRESUMO
The objective of this study was to describe the neuropsychological profiles of the three variants of primary progressive aphasia (PPA). Based on a comprehensive speech and language evaluation, 91 subjects were classified as logopenic (lvPPA=51), semantic (svPPA=13), or agrammatic (agPPA=27). All subjects completed a separate neuropsychological evaluation assessing verbal and visual memory, processing speed, executive function, and visuospatial function. The groups did not differ on demographic variables or on measures of disease duration or aphasia severity. There were group differences on aspects of learning and memory, as well as aspects of executive and visuospatial functions, primarily with the lvPPA group performing lower than the agPPA and svPPA groups. The agPPA group showed subtle deficits consistent with frontal lobe impairment, whereas neurocognitive weaknesses in the svPPA group were restricted to temporal lobe functions. The pattern of neurocognitive dysfunction in lvPPA suggests disease involvement of frontal lobe functions in addition to temporoparietal functions. These neurocognitive findings emphasize the value of a comprehensive neuropsychological evaluation of individuals who present with primary language disturbance, given the pattern of cognitive deficits may provide additive information for differentiating these clinical syndromes.
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Afasia Primária Progressiva/classificação , Afasia Primária Progressiva/complicações , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/etiologia , Testes Neuropsicológicos , Idoso , Análise de Variância , Função Executiva/fisiologia , Feminino , Humanos , Idioma , Masculino , Transtornos da Memória/etiologia , Pessoa de Meia-Idade , Exame Neurológico , Estudos Retrospectivos , Percepção Espacial , Fala , Aprendizagem VerbalRESUMO
Introduction: In February 2023, a work group began to develop a new North American organization in neuropsychology to represent and support practicum-training sites. While other training-focused organizations such as the Association of Postdoctoral Programs in Clinical Neuropsychology (APPCN) and the Association of Internship Training in Clinical Neuropsychology (AITCN) have existed for many years, no organization exists to promote and support practicum level training outside of doctoral degree programs. The work group developed such an organization, subsequently named the North American Association of Practicum Sites in Neuropsychology (NAPSN), beginning with a mission statement and general purpose of the organization. Methods: The work group divided members into five task forces focused on various tasks needed to start the organization, including Mission/Vision, Administrative Structure, Membership, Financials, and Bylaws. The entire work group met monthly with additional meetings and work via email for the various task forces, which resulted in the development of a mission statement and bylaws, as well as a framework for program administration, membership requirements and financial needs. Conclusions: The group developed NAPSN primarily as a resource to support diverse practicum programs in urban, suburban, and rural areas in the US and Canada to provide optimal graduate level clinical training in neuropsychology. Didactics aimed specifically at practicum students was one need identified early in the process. NAPSN is developing a website-based resource in collaboration with other training organizations to increase the didactic offerings to practicum students. Other initiatives and collaborative efforts will be undertaken over time as circumstances warrant.
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In recent years, a paradigm shift in neuroscience has been occurring from "localizationism," or the idea that the brain is organized into separately functioning modules, toward "connectomics," or the idea that interconnected nodes form networks as the underlying substrates of behavior and thought. Accordingly, our understanding of mechanisms of neurological function, dysfunction, and recovery has evolved to include connections, disconnections, and reconnections. Brain tumors provide a unique opportunity to probe large-scale neural networks with focal and sometimes reversible lesions, allowing neuroscientists the unique opportunity to directly test newly formed hypotheses about underlying brain structural-functional relationships and network properties. Moreover, if a more complete model of neurological dysfunction is to be defined as a "disconnectome," potential avenues for recovery might be mapped through a "reconnectome." Such insight may open the door to novel therapeutic approaches where previous attempts have failed. In this review, we briefly delve into the most clinically relevant neural networks and brain mapping techniques, and we examine how they are being applied to modern neurosurgical brain tumor practices. We then explore how brain tumors might teach us more about mechanisms of global brain dysfunction and recovery through pre- and postoperative longitudinal connectomic and behavioral analyses.
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OBJECTIVE: As the COVID-19 pandemic continues, the impact on neuropsychology trainees continues to evolve. This paper describes the results of a survey of neuropsychology trainee (graduate student through postdoctoral resident) perspectives on the COVID-19 pandemic and compares them to a previous survey conducted in Spring 2020. METHOD: The survey used several questions from the 2020 survey and added applicable new questions based on the results of the 2020 survey. The survey was distributed to listservs, training directors, and student organizations in neuropsychology with snowball sampling used. RESULTS: Respondents were primarily female (82.4%) and white (63%). The majority of trainees (66%) reported loss of clinical hours. Interestingly, the average training time missed was approximately 3.36 weeks (SD = 9.27). Trainees continue to report that they have experienced increased anxiety, depression, and stress since the beginning of the pandemic; however, compared to a prior survey, rates of increased anxiety/stress remained stable, but more trainees reported increased depression. Approximately 31% of trainees reported that they were differentially impacted by the pandemic due to racial/ethnic background and female trainees were more likely to report increased personal stress, anxiety and depression than their male counterparts. CONCLUSIONS: Results suggest continued wide-reaching pandemic related impacts on neuropsychology trainees. For example, trainees continue to be concerned about the impact of lost clinical hours on their professional futures. The most notable of the personal impacts included increased rates of mental health concerns and differential impacts on trainees from ethnoracial minority communities. Recommendations are provided to assist trainees in coping with pandemic-related disruptions.
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COVID-19 , Pandemias , Feminino , Seguimentos , Humanos , Masculino , Testes Neuropsicológicos , Neuropsicologia , SARS-CoV-2 , Inquéritos e QuestionáriosRESUMO
Background: The hippocampus and temporal lobe are atrophic in typical amnestic Alzheimer's disease (tAD) and are used as imaging biomarkers in treatment trials. However, a better understanding of how temporal structures differ across atypical AD phenotypes and relate to cognition is needed. Objective: Our goal was to compare temporal lobe regions between tAD and two atypical AD phenotypes (logopenic progressive aphasia (LPA) and posterior cortical atrophy (PCA)), and assess cognitive associations. Methods: We age and gender-matched 77 tAD participants to 50 LPA and 27 PCA participants, all of which were amyloid-positive. We used linear mixed-effects models to compare FreeSurfer-derived hippocampal volumes and cortical thickness of entorhinal, inferior and middle temporal, and fusiform gyri, and to assess relationships between imaging and memory, naming, and visuospatial function across and within AD phenotype. Results: Hippocampal volume and entorhinal thickness were smaller bilaterally in tAD than LPA and PCA. PCA showed greater right inferior temporal and bilateral fusiform thinning and LPA showed greater left middle and inferior temporal and left fusiform thinning. Atypical AD phenotypes differed with greater right hemisphere thinning in PCA and greater left hemisphere thinning in LPA. Verbal and visual memory related most strongly to hippocampal volume; naming related to left temporal thickness; and visuospatial related to bilateral fusiform thickness. Fewer associations remained when examined within AD group. Conclusion: Atypical AD phenotypes are associated with greater thinning of lateral temporal structures, with relative sparing of medial temporal lobe, compared to tAD. These findings may have implications for future clinical trials in AD.
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Evidence suggests that physical activity (PA) is associated with the maintenance of cognitive function across the lifespan. In contrast, the apolipoproteinE-ε4 (APOE-ε4) allele, a genetic risk factor for Alzheimer's disease (AD), is associated with impaired cognitive function. The objective of this study was to examine the interactive effects of PA and APOE-ε4 on brain activation during memory processing in older (ages 65-85) cognitively intact adults. A cross-sectional design was used with four groups (n=17 each): (1) Low Risk/Low PA; (2) Low Risk/High PA; (3) High Risk/Low PA; and (4) High Risk/High PA. PA level was based on self-reported frequency and intensity. AD risk was based on presence or absence of an APOE-ε4 allele. Brain activation was measured using event-related functional magnetic resonance imaging (fMRI) while participants performed a famous name discrimination task. Brain activation subserving semantic memory processing occurred in 15 functional regions of interest. High PA and High Risk were associated with significantly greater semantic memory activation (famous>unfamiliar) in 6 and 3 of the 15 regions, respectively. Significant interactions of PA and Risk were evident in 9 of 15 brain regions, with the High PA/High Risk group demonstrating greater semantic memory activation than the remaining three groups. These findings suggest that PA selectively increases memory-related brain activation in cognitively intact but genetically at-risk elders. Longitudinal studies are required to determine whether increased semantic memory processing in physically active at-risk individuals is protective against future cognitive decline.
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Apolipoproteína E4/sangue , Memória/fisiologia , Idoso , Idoso de 80 Anos ou mais , Doença de Alzheimer/genética , Apolipoproteína E4/genética , Percepção Auditiva , Encéfalo/anatomia & histologia , Encéfalo/fisiologia , Demência/epidemiologia , Escolaridade , Feminino , Humanos , Atividades de Lazer , Imageamento por Ressonância Magnética/métodos , Masculino , Seleção de Pacientes , Sensibilidade e Especificidade , Aprendizagem VerbalRESUMO
The effect of physical activity (PA) on functional brain activation for semantic memory in amnestic mild cognitive impairment (aMCI) was examined using event-related functional magnetic resonance imaging during fame discrimination. Significantly greater semantic memory activation occurred in the left caudate of High- versus Low-PA patients, (P=0.03), suggesting PA may enhance memory-related caudate activation in aMCI.
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Amnésia/complicações , Transtornos Cognitivos/complicações , Atividade Motora/fisiologia , Semântica , Amnésia/patologia , Mapeamento Encefálico , Transtornos Cognitivos/patologia , Lateralidade Funcional , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética/métodos , Testes Neuropsicológicos , Oxigênio/sangueRESUMO
Objective: To conduct an online survey in order to understand neuropsychology trainees' perspectives during the COVID-19 pandemic and identify pertinent concerns, training gaps, and recommendations.Method: A total of 874 neuropsychology trainees (81% female) completed the 69-item survey. Of the included trainees, 48% were doctoral students, 17% were interns, and 35% were postdoctoral residents (50% of resident respondents were in their first year).Results: The majority of neuropsychology trainees reported some impact of the pandemic on their professional and/or personal life. Overall, the impact did not differ by training level, geographic location, or demographic factors. Trainees' primary professional concerns included uncertainty about the impact of the pandemic on their professional future, loss of clinical hours, and desire for increased and ongoing communication from their leadership. A notable percentage of trainees reported increased personal mental health symptoms (i.e. anxiety/depression; 74%/54%), as well as a number of other personal stressors. Despite the transition to telehealth (mostly interviews/feedback sessions), few trainees have prior training or experience in providing neuropsychological services via phone or video platform. A limited proportion of trainees (approximately 10%) were still seeing patients face-to-face for neuropsychological evaluations during the COVID-19 pandemic as of 14 April 2020.Conclusions: The COVID-19 pandemic is impacting neuropsychological training and the well-being of trainees. This survey highlights the importance of communication with trainees during uncertain times. Based on the survey results, recommendations were developed to assist neuropsychology organizations in developing initiatives to support trainees during the current pandemic and in the future.
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Academias e Institutos , Betacoronavirus , Infecções por Coronavirus/psicologia , Neuropsicologia/educação , Pneumonia Viral/psicologia , Estudantes de Ciências da Saúde/psicologia , Inquéritos e Questionários , Academias e Institutos/tendências , Adulto , Comitês Consultivos/tendências , COVID-19 , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/terapia , Feminino , Humanos , Internato não Médico/tendências , Masculino , Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia , Transtornos Mentais/terapia , Testes Neuropsicológicos , Neuropsicologia/tendências , Pandemias , Pneumonia Viral/epidemiologia , Pneumonia Viral/terapia , SARS-CoV-2 , Estados Unidos/epidemiologiaRESUMO
BACKGROUND: Regular physical activity after breast cancer diagnosis improves survival rates and quality of life (QOL). However, breast cancer survivors rarely meet guidelines for recommended levels of physical activity. Wellness coaching interventions (WCIs) have improved exercise and health behaviors in other patient populations. OBJECTIVES: This study assessed the feasibility and effectiveness of WCIs for increasing physical activity in breast cancer survivors; secondary measures included changes in dietary habits, weight, and QOL. METHODS: 20 obese or overweight breast cancer survivors who recently completed active breast cancer treatment were recruited into a single-arm, 12-week WCI pilot feasibility study. The intervention was comprised of one in-person wellness coaching visit followed by four telephone calls over 12 weeks and 12 weekly emails containing wellness recommendations. FINDINGS: Significant improvements from pre- to postintervention were seen in physical activity level, dietary habits, and in some aspects of QOL. Forty percent of participants achieved the 3% postintervention weight-loss goal, but this was not sustained at 30 weeks.
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Neoplasias da Mama/psicologia , Sobreviventes de Câncer/psicologia , Exercício Físico/psicologia , Comportamentos Relacionados com a Saúde , Promoção da Saúde/métodos , Tutoria/métodos , Qualidade de Vida/psicologia , Adulto , Idoso , Currículo , Educação Continuada em Enfermagem , Estudos de Viabilidade , Feminino , Humanos , Pessoa de Meia-Idade , Minnesota , Projetos PilotoRESUMO
Primary progressive apraxia of speech (PPAOS) is a term used to describe a neurodegenerative condition in which apraxia of speech (AOS; a planning and/or programming deficit) occurs in the absence of aphasia (a language deficit). PPAOS is strongly associated with 4-repeat tau pathology. Elevated flortaucipir ([18F]AV-1451; FTP) uptake has been observed cross-sectionally in patients with PPAOS and those with aphasia. Here, we evaluated longitudinal changes in previously-identified regions of uptake and their relationship with clinical presentation. Thirteen patients who were diagnosed with PPAOS (5 female) at presentation underwent FTP PET imaging at two visits (mean 1 year interval). Median age was 72, with a median of 4 years disease duration at initial testing. Beta-amyloid status was assessed with Pittsburgh Compound B (PiB), where a global PiB ratio>1.48 was deemed amyloid positive (n = 4). FTP uptake was assessed as cortical to cerebellar crus ratios (SUVr) in cortical regions of interest. A single hierarchical linear model (HLM) compared PPAOS patients to 52 cognitively unimpaired controls of similar age and sex. Annualized SUVr change was the outcome, predicted by region, clinical status, and age. Person-specific effects accounted for intra-patient correlations and contralateral regions were included as repeated measures. Changes in clinical measures were assessed using Wilcoxon signed-rank tests; statistically significant changes in the Montreal Cognitive Assessment, MDS-UPDRS, motor section, and PSP Rating Scale were noted between visits. Changes in FTP SUVr were greater for patients than controls. The strongest changes in PPAOS patients were in the precentral gyrus, pallidum, and mid and superior frontal gyri, per the HLM. Qualitatively, larger changes were seen in patients who had developed aphasia by the time of their baseline scan (n = 5). While the biological mechanisms of FTP signal in non-AD tauopathies are unknown, this study demonstrates the utility of FTP in tracking disease progression in 4R tauopathies.
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Apraxias , Fala , Idoso , Apraxias/diagnóstico por imagem , Encéfalo/diagnóstico por imagem , Carbolinas , Feminino , Humanos , Imageamento por Ressonância Magnética , Tomografia por Emissão de PósitronsRESUMO
BACKGROUND: Cognitive function is an important outcome in brain-tumor clinical trials. Cognitive examiners are often needed across multiple sites, many of whom have no prior testing experience. To ensure quality, we looked at examiner errors in administering a commonly used cognitive test battery, determined whether the errors were correctable upon central review, and considered whether the same errors would be detected using onsite electronic data entry. METHODS: We looked at 500 cognitive exams administered for brain-tumor trials led by the Alliance for Clinical Trials in Oncology (Alliance). Of 2277 tests examined, 32 noncorrectable errors were detected with routine central review (1.4% of tests administered), and thus removed from the database of the respective trial. The invalidation rate for each test was 0.8% for each part of the Hopkins Verbal Learning Test-Revised, 0.8% for Controlled Oral Word Association, 1.8% for Trail Making Test-A and 2.6% for Trail Making Test-B. It was estimated that, with onsite data entry and no central review, 4.9% of the tests entered would have uncorrected errors and 1.3% of entered tests would be frankly invalid but not removed. CONCLUSIONS: Cognitive test results are useful and robust outcome measures for brain-tumor clinical trials. Error rates are extremely low, and almost all are correctable with central review of scoring, which is easy to accomplish. We caution that many errors could be missed if onsite electronic entry is utilized instead of central review, and it would be important to mitigate the risk of invalid scores being entered. CLINICALTRIALSGOV IDENTIFIERS: NCT01781468 (Alliance A221101), NCT01372774 (NCCTG N107C), NCT00731731 (NCCTG N0874), and NCT00887146 (NCCTG N0577).
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OBJECTIVE: To determine the frequency of incidental meningioma and identify associated factors in a population-based sample of participants who systematically underwent brain imaging. PATIENTS AND METHODS: We searched the Mayo Clinic Study of Aging, a population-based sample of Olmsted County, Minnesota, residents who underwent longitudinal magnetic resonance imaging of the brain. Using a text search of radiologists' notes for 2402 individuals (median age, 75.0 years) who underwent imaging between August 10, 2005, and July 31, 2014, we identified 52 patients (2.2%) who had at least one meningioma. We estimated the association of selected risk factors with the presence of meningioma using odds ratios and 95% CIs from logistic regression models adjusted for age and sex. Based on these results, we moved the most significant variables forward to a multivariable model. RESULTS: Controlling for age and sex, significant associations with the presence of meningioma included higher body mass index (odds ratio [OR], 1.06; 95% CI, 1.01-1.12; P=.03), nonsteroidal anti-inflammatory drugs (OR, 2.11; 95% CI, 1.13-3.95; P=.02), aspirin (OR, 1.90; 95% CI, 1.05-3.46; P=.04), and blood pressure-lowering medication (OR, 2.06; 95% CI, 1.06-3.99; P=.03). Lower risk was associated with male sex (OR, 0.51; 95% CI, 0.29-0.90; P=.02), coronary artery disease (OR, 0.46; 95% CI, 0.22-0.97; P=.04), and higher self-reported anxiety (OR, 0.88; 95% CI, 0.78-0.98; P=.02). Simultaneous adjustment for all of these factors except aspirin in a multivariable model did not attenuate these associations (concordance, 0.71). CONCLUSION: In a population-based sample of 2402 participants, 52 (2.2%) had an incidental meningioma. They were more likely to be female and have higher body mass index. Meningioma was also associated with certain medications (nonsteroidal anti-inflammatory drugs and blood pressure-lowering medications) and inversely with anxiety and coronary artery disease.
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Encéfalo/diagnóstico por imagem , Achados Incidentais , Imageamento por Ressonância Magnética/métodos , Neoplasias Meníngeas/diagnóstico , Meningioma/diagnóstico , Vigilância da População , Medição de Risco/métodos , Idoso , Idoso de 80 Anos ou mais , Anti-Inflamatórios não Esteroides/efeitos adversos , Índice de Massa Corporal , Doença da Artéria Coronariana/complicações , Feminino , Terapia de Reposição Hormonal/efeitos adversos , Humanos , Incidência , Masculino , Neoplasias Meníngeas/epidemiologia , Neoplasias Meníngeas/etiologia , Meningioma/epidemiologia , Meningioma/etiologia , Minnesota/epidemiologia , Razão de Chances , Estudos Retrospectivos , Fatores de RiscoRESUMO
Many patients who meet core/root criteria for Primary Progressive Aphasia (PPA) are not classifiable as a recognized variant and are often excluded from neuroimaging studies. Here, we detail neurological, neuropsychological, speech and language assessments, and anatomic and molecular neuroimaging (MRI, PiB-PET, and FDG-PET) for fifteen (8 female) clinically unclassifiable PPA patients. Median age of onset was 64â¯years old with median 3â¯years disease duration at exam. Three patients were amyloid positive on PiB-PET. 14/15 patients had abnormal FDG-PETs with left predominant hypometabolism, affecting frontal, temporal, parietal, and even occipital lobes. Patients had mild to severe clinical presentations. Visualization of the FDG-PETs principal component analysis revealed patterns of hypometabolism similar to those seen in the PPA variants and suggests the brain regions affected in unclassifiable PPA patients are no different from those who are more easily classifiable. These findings may inform future modifications to the diagnostic criteria to improve diagnostic classification.
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Afasia Primária Progressiva/patologia , Afasia Primária Progressiva/fisiopatologia , Encéfalo/patologia , Encéfalo/fisiopatologia , Neuroimagem , Idoso , Feminino , Humanos , Testes de Linguagem , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Tomografia por Emissão de Pósitrons , Análise de Componente Principal , Fala/fisiologiaRESUMO
BACKGROUND: The logopenic variant of primary progressive aphasia (lvPPA) manifests due to a breakdown of the language network with prominent hypometabolism of the left temporoparietal region. LvPPA is strongly associated with amyloid deposition, yet there is question as to whether it is a homogeneous clinical entity. OBJECTIVE: This study investigated whether differences in temporoparietal metabolic patterns on 18F fludeoxyglucose positron emission tomography (FDG-PET) could elucidate brain regions preferentially affected in lvPPA. METHOD: We used differences in FDG-PET metabolic z-scores relative to controls for means of left lateral temporal, left inferior parietal, and left superior parietal regions to classify 53 amyloid-positive lvPPA patients into temporal, parietal, or temporoparietal predominate groups. Clinical features and FDG-PET regions of hypometabolism outside of the temporoparietal region were then compared across the three groups; the latter using statistical parametric mapping. RESULTS: Of the 53 lvPPA patients, 15 were classified as temporal, 14 as temporoparietal, and 22 as parietal predominate. There were no significant differences between the groups on demographic measures, language evaluation, or apolipoprotein E genotype. Compared to the other two groups, individuals with the parietal predominate pattern had extensive hypometabolism in left frontal lobe and the precuneus. Furthermore, this group had greater behavioral dyscontrol and deficits in executive function, visuospatial skills, visual memory retention, working memory, and cognitive flexibility (Bonferronipâ<â0.05). CONCLUSIONS: This study demonstrates that there is clinical heterogeneity within amyloid-positive lvPPA. Patients with lvPPA with predominant parietal hypometabolism, unlike those with temporal or temporoparietal predominant hypometabolism, demonstrated widespread cognitive and behavioral changes.