Cortical microinfarcts in adults with Down syndrome assessed with 3T-MRI.

BACKGROUND: Cortical microinfarcts (CMI) were attributed to cerebrovascular disease and cerebral amyloid angiopathy (CAA). CAA is frequent in Down syndrome (DS) while hypertension is rare, yet no studies have assessed CMI in DS. METHODS: We included 195 adults with DS, 63 with symptomatic sporadic Alzheimer's disease (AD), and 106 controls with 3T magnetic resonance imaging. We assessed CMI prevalence in each group and CMI association with age, AD clinical continuum, vascular risk factors, vascular neuroimaging findings, amyloid/tau/neurodegeneration biomarkers, and cognition in DS. RESULTS: CMI prevalence was 11.8% in DS, 4.7% in controls, and 17.5% in sporadic AD. In DS, CMI increased in prevalence with age and the AD clinical continuum, was clustered in the parietal lobes, and was associated with lacunes and cortico-subcortical infarcts, but not hemorrhagic lesions. DISCUSSION: In DS, CMI are posteriorly distributed and related to ischemic but not hemorrhagic findings suggesting they might be associated with a specific ischemic CAA phenotype. HIGHLIGHTS: This is the first study to assess cortical microinfarcts (assessed with 3T magnetic resonance imaging) in adults with Down syndrome (DS). We studied the prevalence of cortical microinfarcts in DS and its relationship with age, the Alzheimer's disease (AD) clinical continuum, vascular risk factors, vascular neuroimaging findings, amyloid/tau/neurodegeneration biomarkers, and cognition. The prevalence of cortical microinfarcts was 11.8% in DS and increased with age and along the AD clinical continuum. Cortical microinfarcts were clustered in the parietal lobes, and were associated with lacunes and cortico-subcortical infarcts, but not hemorrhagic lesions. In DS, cortical microinfarcts are posteriorly distributed and related to ischemic but not hemorrhagic findings suggesting they might be associated with a specific ischemic phenotype of cerebral amyloid angiopathy.

Projeto Toy Box: estimulando a atividade física ao brincar em família durante a pandemia de COVID-19 / Toy Box Project: encouraging the physical activity when play with the family during the COVID-19 pandemic

Apesar da alta incidência do comportamento sedentário na infância, brincadeira popular em família pode estimular o estilo de vida saudável. Objetivou-se analisar o impacto da disponibilização de uma caixa com brinquedos populares no nível de atividade física (NAF) de crianças. 33 crianças de 7 a 11 anos, foram divididas em: grupo controle, sem intervenção, (GC, n = 12, ♂ = 4, ♀ = 8) e grupo experimental (GE, n= 21, ♂ = 6, ♀ = 14), que recebeu uma caixa com brinquedos populares para interagir com a família por 1 mês. O NAF foi mensurado pelo do Questionário do Dia Típico de Atividade Física ­ DAFA. A ANOVA para medidas repetidas de dois fatores não revelou diferença significativa entre os momentos (p = 0,382), e nem na interação grupos*momentos (p = 0,666). Contudo, notou--se que o GE teve um aumento maior no NAF após a intervenção (Δ = 2,45 ± 10,55) comparado ao GC (Δ = 0,83 ± 9,40). Além de uma frequência maior de crianças do GE se tornando mais ativas (pré: 25%; pós: 40%) comparado ao GC (pré e pós: 67%). Concluiu-se que apesar da intervenção com brinquedos populares não ter resultado em diferença estatisticamente significativa no NAF das crianças analisadas, as diferenças clínicas demonstram que o Projeto Toy Box tem potencialidade para resultados promissores no NAF, sugerindo continuidade do estudo.

Despite the increased sedentary behavior in childhood, a playful strategy in the family, with traditional play, can encourage a healthy lifestyle. This study verified the impact of a box with traditional toys on children's physical activity level (PAL). Thirty-three children between 7 and 11 years old were divided into following groups: control group (CG, n = 12, ♂ = 4, ♀ = 8) without intervention, and experimental group (EG, n = 21, ♂ = 6, ♀ = 14) that received a box with traditional toys to use with family for a month. The PAL was evaluated thru a questionnaire (DAFA). The Repeated measures ANOVA did not showed significance between moments (p = 0.382), and nether for groups*moments interaction (p = 0.666). However, the EG improved PAL after intervention (Δ = 2.45 ± 10.55) compared to CG (Δ = 0.83 ± 9.40). Beyond that, in GE children became more physically active (pre: 25%; post: 40%) than CG (pre and post: 67%). In con-clusion, the traditional toys intervention did not result in a statistically significant PAL improvement in evaluated children, however, the clinical differences showed that the Toy Box project has the potential for promising results in PAL, suggesting the research extension.

Bearded capuchin monkeys as a model for Alzheimer's disease.

The absence of a natural animal model is one of the main challenges in Alzheimer's disease research. Despite the challenges of using nonhuman primates in studies, these animals can bridge mouse models and humans, as nonhuman primates are phylogenetically closer to humans and can spontaneously develop AD-type pathology. The capuchin monkey, a New World primate, has recently attracted attention due to its skill in creating and using instruments. We analyzed one capuchin brain using structural 7 T MRI and performed a neuropathological evaluation of three animals. Alzheimer-type pathology was found in the two of the capuchins. Widespread ß-amyloid pathology was observed, mainly in focal deposits with variable morphology and a high density of mature plaques. Notably, plaque-associated dystrophic neurites associated with disruption of axonal transport and early cytoskeletal alteration were frequently found. Unlike in other species of New World monkeys, cerebral arterial angiopathy was not the predominant form of ß-amyloid pathology. Additionally, abnormal aggregates of hyperphosphorylated tau, resembling neurofibrillary pathology, were observed in the temporal and frontal cortex. Astrocyte hypertrophy surrounding plaques was found, suggesting a neuroinflammatory response. These findings indicate that aged capuchin monkeys can spontaneously develop Alzheimer-type pathology, indicating that they may be an advantageous animal model for research in Alzheimer's disease.

Postmortem chest computed tomography in COVID-19: A minimally invasive autopsy method.

Objectives: Performing autopsies in a pandemic scenario is challenging, as the need to understand pathophysiology must be balanced with the contamination risk. A minimally invasive autopsy might be a solution. We present a model that combines radiology and pathology to evaluate postmortem CT lung findings and their correlation with histopathology. Methods: Twenty-nine patients with fatal COVID-19 underwent postmortem chest CT, and multiple lung tissue samples were collected. The chest CT scans were analyzed and quantified according to lung involvement in five categories: normal, ground-glass opacities, crazy-paving, small consolidations, and large or lobar consolidations. The lung tissue samples were examined and quantified in three categories: normal lung, exudative diffuse alveolar damage (DAD), and fibroproliferative DAD. A linear index was used to estimate the global severity of involvement by CT and histopathological analysis. Results: There was a positive correlation between patient mean CT and histopathological severity score indexes - Pearson correlation coefficient (R) = 0.66 (p = 0.0078). When analyzing the mean lung involvement percentage of each finding, positive correlations were found between the normal lung percentage between postmortem CT and histopathology (R=0.65, p = 0.0082), as well as between ground-glass opacities in postmortem CT and normal lungs in histopathology (R=0.65, p = 0.0086), but negative correlations were observed between ground-glass opacities extension and exudative diffuse alveolar damage in histological slides (R=-0.68, p = 0.005). Additionally, it was found is a trend toward a decrease in the percentage of normal lung tissue on the histological slides as the percentage of consolidations in postmortem CT scans increased (R =-0.51, p = 0.055). The analysis of the other correlations between the percentage of each finding did not show any significant correlation or correlation trends (p ≥ 0.10). Conclusions: A minimally invasive autopsy is valid. As the severity of involvement is increased in CT, more advanced disease is seen on histopathology. However, we cannot state that one specific radiological category represents a specific pathological correspondent. Ground-glass opacities, in the postmortem stage, must be interpreted with caution, as expiratory lungs may overestimate disease.

Bearded capuchin monkey as a model for Alzheimer's disease research.

The absence of a natural animal model is one of the main challenges in Alzheimer's disease research. Despite the challenges of using non-human primates in studies, they can bridge mouse models and humans, as non-human primates are phylogenetically close to humans and can spontaneously develop AD-type pathology. The capuchin monkey, a New World primate, has recently attracted attention due to its skill in creating and using instruments. We analyzed three capuchin brains using structural 7T MRI and neuropathological evaluation. Alzheimer-type pathology was found in one case. Widespread ß-amyloid pathology mainly in the form of focal deposits with variable morphology and high density of mature plaques. Noteworthy, plaque-associated dystrophic neurites, associated with disrupted of axonal transport and early cytoskeletal alteration, were frequently found. Unlike other species of New World monkeys, cerebral arterial angiopathy was not the predominant form of ß-amyloid pathology. Additionally, abnormal aggregates of hyperphosphorylated tau, resembling neurofibrillary pathology, were observed in the temporal and frontal cortex. Besides, astrocyte hypertrophy surrounding plaques was found, suggesting a neuroinflammatory response. Aged capuchin monkeys can spontaneously develop Alzheimer-type pathology, indicating that they may be an advantageous animal model for research in Alzheimer's disease.

Brain Spectroscopy Analysis in Retired Soccer Players With Chronic Exposure to Mild Traumatic Brain Injuries.

Soccer players are at risk of suffering cranial injuries in the short and long term. There is growing concern that this may lead to traumatic brain injury in soccer players. Magnetic resonance spectroscopy (MRS) is an analytical method that enables the measurement of changes in brain metabolites that usually occur before significant structural changes. This study aimed to use MRS to compare variations in brain metabolite levels between retired soccer players and a control group. Twenty retired professional soccer players and 22 controls underwent magnetic resonance imaging, including MRS sequences and Mini-Mental State Examination (MMSE). Metabolite analysis was conducted based on absolute concentration and relative ratios. N-acetyl-aspartate, choline, glutamate, glutamine, and myoinositol were the metabolites of interest for the statistical analysis. Retired soccer players had an average age of 57.8 years, whereas the control group had an average age of 63.2 years. Median cognitive evaluation score, assessed using the MMSE, was 28 [26-29] for athletes and 29 [28-30] for controls (p = 0.01). Uni- and multi-variate analyses of the absolute concentration of metabolites (mM) between former athletes and controls did not yield any statistically significant results. Comparison of metabolites to creatine ratio concentrations did not yield any statistically significant results. There were no changes in concentrations of brain metabolites that indicated brain metabolic changes in retired soccer players compared with controls.

The Impact of Post-Stroke Depressive Symptoms on Cognitive Performance in Women and in Men: A 4 Month Prospective Study.

Background: Depressive symptoms have been associated with cognitive impairment after stroke, and women may be specifically affected. Objective: The aim of this study was to investigate gender-specific characteristics in the relationship between changes in depression severity and changes in cognitive performance after stroke. Methods: We prospectively evaluated 73 patients without a previous history of depression in the first and fourth months after a first ischemic stroke. The severity of depressive symptoms was assessed using the 31-item version of the Hamilton Rating Scale for Depression, and executive function, attention, working memory, and verbal fluency were assessed using a neuropsychological battery. Results: We included 46 (63.0%) men and 27 (36.9%) women, with mean ages of 55.2 (SD ± 15.1) and 46.8 (SD ± 14.7) years, respectively. We found significant improvement in the digit span forward and Stroop dots from month 1 to month 4 post stroke for both men and women. Women, but not men, presented a correlation between changes in phonemic verbal fluency and changes in the 31-item version of the Hamilton Rating Scale for Depression scores. Improvement in depression was correlated with improvement in verbal fluency, and worsening in depression was correlated with worsening in verbal fluency. Conclusions: Our results suggest that women might be more vulnerable to the relationship between depressive symptoms and cognitive performance, and improvement of depression may be necessary for women's improvement in phonemic verbal fluency from the first to the fourth month after a stroke. We did not adjust the results for multiple comparisons. Thus, our findings might be considered preliminary, and confirmatory studies, also focusing on specific characteristics of women that could explain these differences, are warranted.

Ischemic stroke caused by large-artery atherosclerosis: a red flag for subclinical coronary artery disease.

Background: The coronary calcium score (CAC) measured on chest computerized tomography is a risk marker of cardiac events and mortality. We compared CAC scores in two multiethnic groups without symptomatic coronary artery disease: subjects in the chronic phase after stroke or transient ischemic attack and at least one symptomatic stenosis ≥50% in the carotid or vertebrobasilar territories (Groupathero) and a control group (Groupcontrol). Methods: In this cross-sectional study, Groupathero included two subgroups: GroupExtraorIntra, with stenoses in either cervical or intracranial arteries, and GroupExtra&Intra, with stenoses in at least one cervical and one intracranial artery. Groupcontrol had no history of prior stroke/transient ischemic attacks and no stenoses ≥50% in cervical or intracranial arteries. Age and sex were comparable in all groups. Frequencies of CAC ≥100 and CAC > 0 were compared between Groupathero and Groupcontrol, as well as between GroupExtraorIntr, GroupExtra&Intra, and Groupcontrol, with bivariate logistic regressions. Multivariate analyses were also performed. Results: A total of 120 patients were included: 80 in Groupathero and 40 in Groupcontrol. CAC >0 was significantly more frequent in Groupathero (85%) than Groupcontrol (OR, 4.19; 1.74-10.07; p = 0.001). Rates of CAC ≥100 were not significantly different between Groupathero and Groupcontrol but were significantly greater in GroupExtra&Intra (n = 13) when compared to Groupcontrol (OR 4.67; 1.21-18.04; p = 0.025). In multivariate-adjusted analyses, "Groupathero" and "GroupExtra&Intra" were significantly associated with CAC. Conclusion: The frequency of coronary calcification was higher in subjects with stroke caused by large-artery atherosclerosis than in controls.

Temporomandibular joint: from anatomy to internal derangement.

The temporomandibular joint can be affected by various conditions, such as joint dysfunction, degenerative changes, inflammatory processes, infections, tumors, and trauma. The aim of this pictorial essay is to help radiologists identify and describe the main findings on magnetic resonance imaging evaluation of the temporomandibular joint, given that the correct diagnosis is essential for the appropriate treatment of patients with temporomandibular joint disorders.

A articulação temporomandibular pode ser afetada por diversas afecções, como disfunções articulares, alterações degenerativas, doenças inflamatórias ou infecciosas, tumores e trauma. Este ensaio iconográfico visa auxiliar de forma prática o radiologista a identificar e descrever os principais achados nos exames de ressonância magnética da articulação temporomandibular, tendo em vista que o diagnóstico correto das alterações mais comuns é essencial para o tratamento adequado desses pacientes.

Brain glucose metabolism and gray matter volume in retired professional soccer players: a cross-sectional [18F]FDG-PET/MRI study.

BACKGROUND: Professional soccer athletes are exposed to repetitive head impacts and are at risk of developing chronic traumatic encephalopathy. OBJECTIVE: To evaluate regional brain glucose metabolism (rBGM) and gray matter (GM) volume in retired soccer players (RSPs). METHODS: Male RSPs and age and sex-matched controls prospectively enrolled between 2017 and 2019 underwent neurological and neuropsychological evaluations, brain MRI and [18F]FDG-PET in a 3.0-Tesla PET/MRI scanner. Visual analysis was performed by a blinded neuroradiologist and a blinded nuclear physician. Regional brain glucose metabolism and GM volume were assessed using SPM8 software. Groups were compared using appropriate statistical tests available at SPM8 and R. RESULTS: Nineteen RSPs (median [IQR]: 62 [50-64.5] years old) and 20 controls (60 [48-73] years old) were included. Retired soccer players performed worse on mini-mental state examination, digit span, clock drawing, phonemic and semantic verbal fluency tests, and had reduced rBGM in the left temporal pole (pFDR = 0.008) and the anterior left middle temporal gyrus (pFDR = 0.043). Semantic verbal fluency correlated with rBGM in the right hippocampus, left temporal pole, and posterior left middle temporal gyrus (p ≤ 0.042). Gray matter volume reduction was observed in similar anatomic regions but was less extensive and did not survive correction for multiple comparisons (pFDR ≥ 0.085). Individual [18F]FDG-PET visual analysis revealed seven RSPs with overt hypometabolism in the medial and lateral temporal lobes, frontal lobes, and temporoparietal regions. Retired soccer players had a higher prevalence of septum pellucidum abnormalities on MRI. CONCLUSION: Retired soccer players had reduced rBGM and GM volume in the temporal lobes and septum pellucidum abnormalities, findings possibly related to repetitive head impacts.

ANTECEDENTES: Jogadores profissionais de futebol estão expostos a impactos cranianos repetitivos e ao risco de desenvolver encefalopatia traumática crônica. OBJETIVO: Avaliar o metabolismo glicolítico cerebral regional (MGCr) e o volume de substância cinzenta (vSC) em jogadores de futebol aposentados (JFAs). MéTODOS: Jogadores de futebol aposentados masculinos e controles pareados por idade e sexo foram incluídos prospectivamente entre 2017 e 2019. Foram realizadas avaliações neurológica e neuropsicológica, ressonância magnética (RM) e [18F]FDG-PET cerebrais (3.0-Tesla PET/RM). As imagens foram analisadas visualmente por um neurorradiologista e um médico nuclear cegos ao grupo de cada participante. O metabolismo glicolítico cerebral regional e o vSC foram avaliados através do programa SPM8. Os grupos foram comparados através de testes estatísticos apropriados disponíveis em SPM8 e R, de acordo com a distribuição e o tipo dos dados. RESULTADOS: Dezenove JFAs (mediana [IIQ]: 62 [50­64.5] anos) e 20 controles (60 [48­73] anos) foram incluídos. Os JFAs tiveram pior desempenho no mini-exame do estado mental e nos testes de dígitos, desenho do relógio, fluência verbal e fluência semântica e apresentaram MGCr significativamente reduzido no polo temporal e no giro temporal médio anterior esquerdos. Fluência semântica (animais) apresentou correlação positiva com MGCr no hipocampo direito, no polo temporal esquerdo e no aspecto posterior do giro temporal médio esquerdo. Menor vSC foi observado nas mesmas regiões, porém este achado não sobreviveu à correção para comparações múltiplas. Análise individual do [18F]FDG-PET cerebral revelou sete JFAs com claro hipometabolismo nas faces medial e lateral dos lobos temporais, nos lobos frontais e nas regiões temporoparietais. Os JFAs apresentaram ainda maior prevalência de anormalidades do septo pelúcido. CONCLUSãO: Os JFAs apresentam MGCr e vSC reduzidos nos lobos temporais, além de anormalidades do septo pelúcido, achados possivelmente relacionados a impactos cranianos repetitivos.

Brain glucose metabolism and gray matter volume in retired professional soccer players: a cross-sectional [18F]FDG-PET/MRI study / Metabolismo glicolítico cerebral e volume de substância cinzenta em jogadores de futebol profissionais aposentados: um estudo transversal de [18F]FDG-PET/RM

Abstract Background Professional soccer athletes are exposed to repetitive head impacts and are at risk of developing chronic traumatic encephalopathy. Objective To evaluate regional brain glucose metabolism (rBGM) and gray matter (GM) volume in retired soccer players (RSPs). Methods Male RSPs and age and sex-matched controls prospectively enrolled between 2017 and 2019 underwent neurological and neuropsychological evaluations, brain MRI and [18F]FDG-PET in a 3.0-Tesla PET/MRI scanner. Visual analysis was performed by a blinded neuroradiologist and a blinded nuclear physician. Regional brain glucose metabolism and GM volume were assessed using SPM8 software. Groups were compared using appropriate statistical tests available at SPM8 and R. Results Nineteen RSPs (median [IQR]: 62 [50-64.5] years old) and 20 controls (60 [48-73] years old) were included. Retired soccer players performed worse on mini-mental state examination, digit span, clock drawing, phonemic and semantic verbal fluency tests, and had reduced rBGM in the left temporal pole (pFDR = 0.008) and the anterior left middle temporal gyrus (pFDR = 0.043). Semantic verbal fluency correlated with rBGM in the right hippocampus, left temporal pole, and posterior left middle temporal gyrus (p ≤ 0.042). Cray matter volume reduction was observed in similar anatomic regions but was less extensive and did not survive correction for multiple comparisons (pFDR ≥ 0.085). Individual [18F]FDG-PET visual analysis revealed seven RSPs with overt hypometabolism in the medial and lateral temporal lobes, frontal lobes, and temporoparietal regions. Retired soccer players had a higher prevalence of septum pellucidum abnormalities on MRI. Conclusion Retired soccer players had reduced rBCM and CM volume in the temporal lobes and septum pellucidum abnormalities, findings possibly related to repetitive head impacts.

Resumo Antecedentes Jogadores profissionais de futebol estão expostos a impactos cranianos repetitivos e ao risco de desenvolver encefalopatia traumática crônica. Objetivo Avaliar o metabolismo glicolítico cerebral regional (MCCr) e o volume de substância cinzenta (vSC) em jogadores de futebol aposentados (JFAs). Métodos Jogadores de futebol aposentados masculinos e controles pareados por idade e sexo foram incluídos prospectivamente entre 2017 e 2019. Foram realizadas avaliações neurológica e neuropsicológica, ressonância magnética (RM) e [18F]FDG-PET cerebrais (3.0-Tesla PET/RM). As imagens foram analisadas visualmente por um neurorradiologista e um médico nuclear cegos ao grupo de cada participante. O metabolismo glicolítico cerebral regional e o vSC foram avaliados através do programa SPM8. Os grupos foram comparados através de testes estatísticos apropriados disponíveis em SPM8 e R, de acordo com a distribuição e o tipo dos dados. Resultados Dezenove JFAs (mediana [IIQ]: 62 [50-64.5] anos) e 20 controles (60 [48-73] anos) foram incluídos. Os JFAs tiveram pior desempenho no mini-exame do estado mental e nos testes de dígitos, desenho do relógio, fluência verbal e fluência semântica e apresentaram MCCr significativamente reduzido no polo temporal e no giro temporal médio anterior esquerdos. Fluência semântica (animais) apresentou correlação positiva com MCCr no hipocampo direito, no polo temporal esquerdo e no aspecto posterior do giro temporal médio esquerdo. Menor vSC foi observado nas mesmas regiões, porém este achado não sobreviveu à correção para comparações múltiplas. Análise individual do [18F]FDG-PET cerebral revelou sete JFAs com claro hipometabolismo nas faces medial e lateral dos lobos temporais, nos lobos frontais e nas regiões temporoparietais. Os JFAs apresentaram ainda maior prevalência de anormalidades do septo pelúcido. Conclusão Os JFAs apresentam MCCr e vSC reduzidos nos lobos temporais, além de anormalidades do septo pelúcido, achados possivelmente relacionados a impactos cranianos repetitivos.

Características psicométricas da versão brasileira do Sport Emotion Questionnaire (SEQ-BR) / Características psicométricas de la versión brasileña del Sport Emotion Questionnaire (SEQ-BR) / Psychometric characteristics of the Brazilian version of the Sport Emotion Questionnaire (SEQ-BR)

En este trabajo presentamos una versión traducida y adaptada del Sport Emotion Questionnaire (SEQ) en portugués brasileño, además de explorar sus características psicométricas. En el Estudio 1 se elaboró la versión brasileña del SEQ (SEQ-BR) de acuerdo con las directrices del proceso de adaptación transcultural, se evaluó la validez de contenido y el acuerdo entre evaluadores. La concordancia entre los evaluadores fue casi excelente (0.77 £ Kappa £ 0.89) y el instrumento se consideró válido desde el punto de vista de su contenido en cuanto a claridad (CVCt = 0.91) y pertinencia (CVCt = 0.93). En el Estudio 2, 895 atletas brasileños de diferentes deportes respondieron al SEQ-BR durante competiciones nacionales e internacionales. Se realizaron análisis factoriales para explorar y confirmar la estructura factorial del SEQ-BR. La estructura con cinco factores presentó un ajuste satisfactorio [χ2 (199) = 395.59; χ2/gl = 1.99; CFI = 0.98; TLI = 0.98; GFI = 0.98; RMSEA = 0.033], además de invarianza factorial entre grupos y consistencia interna adecuada en todos los factores (0.78 £ ω £ 0.85). Teniendo en cuenta lo anterior, el SEQ-BR presenta adecuación en cuanto a la validación del contenido y características psicométricas satisfactorias, proporcionando un instrumento estable, consistente y fiable para medir las emociones precompetitivas en atletas brasileños. (AU)

Neste trabalho apresentamos uma versão traduzida e adaptada doSport Emotion Questionnaire(SEQ) para o Português brasileiro, e exploramossuas características psicométricas. No Estudo 1 foi produzida a versão brasileira do SEQ (SEQ-BR)de acordo com as diretrizes para o processo de adaptação transcultural, eavaliadas a validade de conteúdo e a concordância entre os juízes. O julgamento quanto a concordância entre os juízes foi quase excelente (0.77£Kappa£0.89) e o instrumento foi considerado válido do ponto de vista do seu conteúdo quanto a clareza (CVCt= 0.91) e pertinência (CVCt= 0.93). No Estudo 2, 895 atletas brasileiros de diferentes modalidades esportivas responderam o SEQ-BR durante competições nacionais e internacionais. As análises fatoriais foram realizadas para explorar e confirmar a estrutura fatorial do SEQ-BR. Aestrutura com cinco fatores apresentou um ajuste satisfatório [χ2(199) = 395.59; χ2/gl = 1.99; CFI = 0.98;TLI = 0.98;GFI = 0.98;RMSEA = 0.033], além de invariância fatorial entre grupos e consistência interna adequada em todos os fatores (0.78£ω£0.85). Diante do exposto, o SEQ-BR apresenta adequação quanto à validação do conteúdo e características psicométricas satisfatórias, fornecendo um instrumento estável, consistente e confiável para mensurar emoções pré-competitivas em atletas brasileiros. (AU)

Here we present an adapted version oftheSport Emotion Questionnaire (SEQ)translated to Brazilian Portuguese, and exploreits psychometric characteristics. In Study 1, the Brazilian version of the SEQ (SEQ-BR) was produced according to the guidelines for the cross-cultural adaptation process, and the content validity and inter-rater agreement were evaluated. The agreement was almost excellent between judges (0.77£Kappa£0.89),and the instrument was considered valid from thecontent viewpoint, regarding clarity (CVCt= 0.91) and relevance (CVCt= 0.93). In Study 2, 895 Brazilian athletes from different types of sports answered the SEQ-BR during national and international competitions. Factor analysis were performed to exploreand confirm the factor structure of the SEQ-BR.The structure composed offive factors [χ2(199) = 395.59;χ2/df = 1.99; CFI = 0.98;TLI = 0.98;GFI = 0.98;RMSEA = 0.033], in addition to factorial invariance between groups and adequate internal consistency in all factors (0,78£ω£0,85). The SEQ-BR presents adequacy as to content validity,and satisfactory psychometric characteristics, providing a stable, consistent, and reliable instrument tomeasure pre-competitive emotions in Brazilian athletes. (AU)

Temporomandibular joint: from anatomy to internal derangement / Articulação temporomandibular: da anatomia ao desarranjo interno

Abstract The temporomandibular joint can be affected by various conditions, such as joint dysfunction, degenerative changes, inflammatory processes, infections, tumors, and trauma. The aim of this pictorial essay is to help radiologists identify and describe the main findings on magnetic resonance imaging evaluation of the temporomandibular joint, given that the correct diagnosis is essential for the appropriate treatment of patients with temporomandibular joint disorders.

Resumo A articulação temporomandibular pode ser afetada por diversas afecções, como disfunções articulares, alterações degenerativas, doenças inflamatórias ou infecciosas, tumores e trauma. Este ensaio iconográfico visa auxiliar de forma prática o radiologista a identificar e descrever os principais achados nos exames de ressonância magnética da articulação temporomandibular, tendo em vista que o diagnóstico correto das alterações mais comuns é essencial para o tratamento adequado desses pacientes.

Lung ultrasound versus chest computed tomography for pregnant inpatients with COVID-19.

PURPOSE: To compare lung ultrasound (US) and computed tomography (CT) in the assessment of pregnant women with COVID-19. METHODS: Prospective study comprising 39 pregnant inpatients with COVID-19 who underwent pulmonary assessment with CT and US with a maximum span of 48 h between the exams. The thorax was divided into 12 regions and assessed in terms of the following: the presence of B-lines (>2), coalescent B-lines, consolidation on US; presence of interlobular thickening, ground glass, consolidation on CT. The two methods were scored by adding up the scores from each thoracic region. RESULTS: A significant correlation was found between the scores obtained by the two methods (rICC = 0.946; p < 0.001). They were moderately in agreement concerning the frequency of altered pulmonary regions (weighted kappa = 0.551). In US, a score over 15, coalescent B-lines, and consolidation were predictors of the need for oxygen, whereas the predictors in CT were a lung score over 16 and consolidation. The two methods, US (p < 0.001; AUC = 0.915) and CT (p < 0.001; AUC = 0.938), were fairly accurate in predicting the need for oxygen. CONCLUSION: In pregnant women, lung US and chest CT are of similar accuracy in assessing lungs affected by COVID-19 and can predict the need for oxygen.

Reinvenção da loucura: uma proposta dedespatologização do fenômeno de ouvir vozes / Reinvention of madness: a proposal to depathologize the phenomenon of hearing voices

O fenômeno de ouvir vozes nem sempre foi considerado critério diagnóstico de um quadro psicopatológico, legitimando o estigma social da loucura através do discurso médico hegemônico. A eliminação das vozes enquanto única possibilidade de tratamento empobrece a dimensão integral do ouvidor e a inscrição das vozes em sua vida, através de práticas medicamentosas ainda pautadas numa visão biologicista em saúde mental. Este artigo percorre por aspectos socioculturais em torno do fenômeno, bem como no diálogo teórico entre Psiquiatria, Psicopatologia e Psicanálise. Tratase de uma revisão narrativa, de caráter exploratório, articulada a um relato de experiência de um grupo de Ouvidores de Vozes, baseado no Movimento Intervoice, que visa a propor um espaço de compartilhamento do fenômeno. Por meio da protagonização dos sujeitos, é possível propor a despatologização enquanto movimento importante às pautas antimanicomiais.

The phenomenon of hearing voices has not always been considered a diagnostic criterion for a psychopathological condition, whose assumption legitimizes the social stigma of madness through the hegemonic medical discourse. The elimination of those voices as the only possibility of treatment impoverishes the integral dimension of the voice hearer and the inclusion of those voices in his life, through medicalization practices still guided by a biologist view at mental health. This article runs through the socio-cultural aspects surrounding the phenomenon, as well as the theoretical dialogue between Psychiatry, Psychopathology and Psychoanalysis. This is an exploratory narrative review, linked to an experience report of a group of Voice Hearers, based on the Intervoice Movement, which aims to provide a space for sharing the phenomenon. Therefore, through the protagonization of voice hearers, it's possible to propose a depathologization as an important movement to anti-asylum guidelines. Keywords: Hearing Voices. Mental Health. Normality. Psychopathology.

Exercise modifies hypothalamic connectivity and brain functional networks in women after bariatric surgery: a randomized clinical trial.

BACKGROUND: Obesity is a disease that may involve disrupted connectivity of brain networks. Bariatric surgery is an effective treatment for obesity, and the positive effects on obesity-related conditions may be enhanced by exercise. Herein, we aimed to investigate the possible synergistic effects of Roux-en-Y Gastric Bypass (RYGB) and exercise training on brain functional networks. METHODS: Thirty women eligible for bariatric surgery were randomly assigned to a Roux-en-Y gastric bypass (RYGB: n = 15, age = 41.0 ± 7.3 years) or RYGB plus Exercise Training (RYGB + ET: n = 15, age = 41.9 ± 7.2 years). Clinical, laboratory, and brain functional connectivity parameters were assessed at baseline, and 3 (POST3) and 9 months (POST9) after surgery. The 6-month, three-times-a-week, exercise intervention (resistance plus aerobic exercise) was initiated 3 months post-surgery (for RYGB + ET). RESULTS: Exercise superimposed on bariatric surgery (RYGB + ET) increased connectivity between hypothalamus and sensorial regions (seed-to-voxel analyses of hypothalamic connectivity), and decreased default mode network (DMN) and posterior salience (pSAL) network connectivity (ROI-to-ROI analyses of brain networks connectivity) when compared to RYGB alone (all p-FDR < 0.05). Increases in basal ganglia (BG) network connectivity were only observed in the exercised training group (within-group analyses). CONCLUSION: Exercise training is an important component in the management of post-bariatric patients and may improve the hypothalamic connectivity and brain functional networks that are involved in controlling food intake. TRIAL REGISTRATION: Clinicaltrial.gov: NCT02441361.

Contrast phase recognition in liver computer tomography using deep learning.

Hepatocellular carcinoma (HCC) has become the 4th leading cause of cancer-related deaths, with high social, economical and health implications. Imaging techniques such as multiphase computed tomography (CT) have been successfully used for diagnosis of liver tumors such as HCC in a feasible and accurate way and its interpretation relies mainly on comparing the appearance of the lesions in the different contrast phases of the exam. Recently, some researchers have been dedicated to the development of tools based on machine learning (ML) algorithms, especially by deep learning techniques, to improve the diagnosis of liver lesions in imaging exams. However, the lack of standardization in the naming of the CT contrast phases in the DICOM metadata is a problem for real-life deployment of machine learning tools. Therefore, it is important to correctly identify the exam phase based only on the image and not on the exam metadata, which is unreliable. Motivated by this problem, we successfully created an annotation platform and implemented a convolutional neural network (CNN) to automatically identify the CT scan phases in the HCFMUSP database in the city of São Paulo, Brazil. We improved this algorithm with hyperparameter tuning and evaluated it with cross validation methods. Comparing its predictions with the radiologists annotation, it achieved an accuracy of 94.6%, 98% and 100% in the testing dataset for the slice, volume and exam evaluation, respectively.

Upper extremities functional disability and pain intensity in female volleyball athletes: cross-sectional study / Incapacidade funcional de membro superior e intensidade de dor em atletas de voleibol do sexo feminino: estudo transversal

ABSTRACT BACKGROUND AND OBJECTIVES: In volleyball, the high demand for shoulder sports makes it susceptible to injuries due to the repetition of sporting gestures. The presence of pain in the shoulder can lead to the disability to perform movements correctly, resulting in reduced sports performance. The study aimed to evaluate and correlate the presence of pain and functional disability of the upper extremity in volleyball athletes. METHODS: Cross-sectional descriptive study, developed with 30 female volleyball athletes. Functional disability was assessed using the Disabilities of the Arm, Shoulder, and Hand Questionnaire (DASH) and pain intensity using the Visual Numeric Scale (VNS). The study was conducted in an online format. The IBM SPSS 21.0 statistical package for Windows was used, where descriptive measures, Wilcoxon, and Spearman correlation tests were performed, adopting p≤0.05. RESULTS: Nineteen athletes reported mild to moderate pain to perform daily activities, and 21 athletes reported pain to perform sporting gestures, with pain being significantly more intense in the dominant shoulder in the spike movement (p<0.001), serve (p<0.001), and blocking (p=0.03). Athletes did not present functional limitations in the DASH, but the opposite, outside hitter, and middle blocker, presented mild limitations in the DASH sport. There was a strong correlation between DASH and day-to-day pain (rs=0.79; p<0.001) and a moderate correlation between sports DASH and pain in the dominant shoulder in the spike (rs=0.67; p<0.001) and in the serve (rs=0.60; p<0.001) movements. CONCLUSION: Evaluated athletes presented shoulder pain, higher functional disability to performer the sports activity, and pain and functional disability were positively correlated HIGHLIGHTS Overhead movements such as serve and spike contribute to shoulder pain in volleyball players; The functional disability of the upper limbs is positively correlated with the intensity of pain to perform daily activities and sports; The kinetic-functional diagnosis is important to minimize the risk of injury, rehabilitate injured athletes and provide an adequate return of the athlete to sports practice.

RESUMO JUSTIFICATIVA E OBJETIVOS: No voleibol, a alta exigência da articulação do ombro torna-o suscetível a lesões devido à repetição dos gestos esportivos. A presença de dor no ombro pode gerar incapacidade para executar os movimentos corretamente, ocasionando redução do desempenho esportivo. O estudo teve como objetivo avaliar e correlacionar a presença de dor e incapacidade funcional de membro superior em atletas de voleibol. METODOS: Estudo transversal, descritivo, desenvolvido com 30 mulheres atletas de voleibol de quadra. A incapacidade funcional foi avaliada por meio do Disabilities of the Arm, Shoulder and Hand Questionnaire (DASH) e a intensidade de dor pela Escala Visual Numérica (EVN) de 10 pontos. A pesquisa foi conduzida no formato on-line. Utilizou-se o programa estatístico IBM SPSS 21.0 para Windows, pelo qual foram realizadas as medidas descritivas, o teste de Wilcoxon e a correlação de Spearman adotando p≤0,05. RESULTADOS: Dezenove atletas relataram dor leve a moderada para realizar as atividades diárias, e 21 atletas para realizar os gestos esportivos, sendo a dor significativamente mais intensa no ombro dominante em movimentos para ataque (p<0,001), saque (p<0,001) e bloqueio (p=0,03). As atletas não apresentaram limitação funcional no DASH geral, mas no DASH esporte as opostas, ponteiras e centrais foram classificadas com limitação leve. Houve correlação forte entre DASH e dor no dia a dia (rs=0,79; p<0,001) e correlação moderada entre DASH esporte e dor no ombro dominante no ataque (rs=0,67; p<0,001) e no saque (rs=0,60; p<0,001). CONCLUSAO: Atletas avaliadas apresentaram dor no ombro, maior incapacidade funcional na atividade esportiva, e dor e incapacidade funcional estavam positivamente correlacionadas. DESTAQUES Movimentos aéreos como saque e ataque contribuem para a dor no ombro em jogadores de voleibol; A incapacidade funcional dos membros superiores correlaciona-se positivamente com a intensidade da dor para a realização de atividades cotidianas e esportivas; O diagnóstico cinético-funcional é importante para minimizar o risco de lesão, reabilitar atletas lesionados e proporcionar um retorno adequado do atleta à prática esportiva.

Headache at the chronic stage of cerebral venous thrombosis.

BACKGROUND: Headache is the most frequent symptom of cerebral venous thrombosis (CVT) but there is limited information about the frequency and phenotype of headache, weeks to months after cerebral venous thrombosis (post-cerebral venous thrombosis headache, PCH). OBJECTIVE: To assess the frequency, characteristics and predictors of PCH. METHODS: In this cross-sectional study, the frequency and characteristics of PCH were assessed in cerebral venous thrombosis survivors. Patients were interviewed between six months and five years after the cerebral venous thrombosis diagnosis. Clinical and imaging characteristics at the time of cerebral venous thrombosis diagnosis, as well as history of headache prior to cerebral venous thrombosis were compared in subjects with (GroupPCH) and without PCH (Groupcontrol). RESULTS: Subjects (n = 100; 82% women) were assessed, on average, at 1.1 ± 1.6 years of follow-up. PCH was present in 59% of the patients, phenotypes of tension-type-like headache were present in 31/59 (52.6%) and of migraine-like headache in 16/59 (27.1%). History of primary headache prior to cerebral venous thrombosis was significantly more common (OR: 6.4; 95% CI: 1.7-36.3) in GroupPCH (33.9%) than in Groupcontrol (7.3%). CONCLUSION: PCH was present in more than half of the patients. History of prior headache may be a risk factor for PCH. Prospective studies are required to confirm these findings and determine mechanisms, as well as interventions for prevention and treatment of PCH.

Impact of Extent of Investigation on Causes of Ischemic Stroke in The Young: A Retrospective Evaluation.

Background: Despite enormous advances in the diagnosis and treatment of ischemic stroke over the past decades, the extent of "standard" investigation to define its causes is heterogeneous. Young patients often undergo a myriad of diagnostic tests in developed countries, but the cost-effectiveness of this approach is uncertain. Objectives: Our main goal was to compare the frequencies of ischemic stroke of undetermined and determined etiologies in young patients with "complete" or "incomplete" investigation according to either a stepwise or an extensive protocol. Methods: Data from 143 young patients with ischemic stroke were reviewed. For each patient, available data were assessed by means of a stepwise and an extensive protocol of investigation. We compared the frequencies of ischemic stroke of undetermined and determined etiology according to "complete" or "incomplete" investigation according to each protocol. Results: Completeness of investigation led to a significant increase in determination of stroke etiology when a stepwise approach but not an extensive protocol was applied. Conclusions: These results suggest that ordering an extensive workup to all young patients does not enhance the capability of determining causes of ischemic stroke. Evidence-based guidelines to define pathways of investigation and consensus about the interpretation of tests are deeply needed.