ABSTRACT Rowland Universal Dementia Assessment Scale (RUDAS) is a cognitive screening that evaluates older people with low educational levels. In Chile, there are no normative data to assess this population. Objective: To obtain normative data on RUDAS in older Chilean people with up to 12 years of schooling, and to determine whether age and schooling years influence a person’s performance on RUDAS and on the items that constitute it. Methods: A group of cognitively healthy people 60 years old or over, with up to 12 schooling years was evaluated (n=135). Multiple regression models were applied to obtain normative data on RUDAS, according to age and schooling years, and to measure the effects of schooling on different items. Results: Regression analysis showed that none of the items had schooling as a significant predictor, except for the visuoconstruction item. The variables age and schooling explained 12.6% (R^2=0.126) of the RUDAS total score variance. The item visuoconstruction was the most associated with the educational level (OR=1,147). Conclusion: This study showed that RUDAS is a recommended instrument for evaluating older people with low educational levels. However, more studies are needed to prove the validity of the RUDAS on Chilean older people. (RUDAS levels Chile population Objective 1 persons person s it Methods 6 over n=135. n135 n n=135 . 135 (n=135) Results predictor 126 12.6 R^2=0.126 R20126 R 2 0 (R^2=0.126 variance OR=1,147. OR1147 OR OR=1,147 147 (OR=1,147) Conclusion However n13 n=13 13 (n=135 12. R^2=0.12 R2012 (R^2=0.12 OR114 OR=1,14 14 (OR=1,147 n1 n=1 (n=13 R^2=0.1 R201 (R^2=0.1 OR11 OR=1,1 (OR=1,14 n= (n=1 R^2=0. R20 (R^2=0. OR1 OR=1, (OR=1,1 (n= R^2=0 R2 (R^2=0 OR=1 (OR=1, (n R^2= (R^2= OR= (OR=1 R^2 (R^2 (OR= R^ (R^ (OR (R

RESUMO RUDAS é uma triagem cognitiva que avalia idosos com baixa escolaridade. No Chile não existem dados normativos para avaliar essa população. Objetivo: Obter dados normativos sobre RUDAS em idosos chilenos com até 12 anos de escolaridade. Além disso, determinar se a idade e a escolaridade influenciam o desempenho de uma pessoa no RUDAS e nos itens que o constituem. Métodos: Foi avaliado um grupo de pessoas cognitivamente saudáveis, com 60 anos ou mais e até 12 anos de escolaridade (n=135). Modelos de regressão múltipla foram utilizados para obter dados normativos do RUDAS, segundo idade e anos de escolaridade, e para mensurar os efeitos da escolaridade em diferentes itens. Resultados: A análise de regressão mostrou que nenhum dos itens teve a escolaridade como preditor significativo, exceto o item visuoconstrução. As variáveis idade e escolaridade explicam 12,6% (R^2=0,126) da variância do escore total do RUDAS. O item visuoconstrução é o mais associado ao nível de escolaridade (OR=1,147). Conclusão: Este estudo mostrou que o RUDAS é um instrumento recomendado para a avaliação de idosos com baixa escolaridade. No entanto, são necessários mais estudos para comprovar a validade do RUDAS em idosos chilenos. população Objetivo 1 disso constituem Métodos saudáveis 6 n=135. n135 n n=135 . 135 (n=135) Resultados significativo 126 12,6 R^2=0,126 R20126 R 2 0 (R^2=0,126 OR=1,147. OR1147 OR OR=1,147 147 (OR=1,147) Conclusão entanto n13 n=13 13 (n=135 12, R^2=0,12 R2012 (R^2=0,12 OR114 OR=1,14 14 (OR=1,147 n1 n=1 (n=13 R^2=0,1 R201 (R^2=0,1 OR11 OR=1,1 (OR=1,14 n= (n=1 R^2=0, R20 (R^2=0, OR1 OR=1, (OR=1,1 (n= R^2=0 R2 (R^2=0 OR=1 (OR=1, (n R^2= (R^2= OR= (OR=1 R^2 (R^2 (OR= R^ (R^ (OR (R

RESUMO. A Bateria de Avaliação Frontal (FAB) é um teste de rastreio que mede as funções executivas. Embora esse instrumento tenha sido validado em vários países, sua utilidade diagnóstica em uma população chilena ainda não foi estudada. Objetivos: (1) Adaptar a FAB para uma população chilena; (2) estudar as propriedades psicométricas da FAB em uma população chilena; (3) avaliar a influência sociodemográfica no desempenho da FAB em uma amostra de controles saudáveis; e (4) desenvolver dados normativos para este último grupo. Métodos: Um grupo controle saudável (n=344) e um grupo de pacientes com demência (n=156) foram avaliados com a versão chilena da FAB. Resultados: A FAB apresentou boa consistência interna (alfa de Cronbach=0,79) e validade aceitável com base na relação com outras variáveis. A análise fatorial mostrou a unidimensionalidade do instrumento. Diferenças significativas foram encontradas no valor total da FAB entre os grupos controle saudável e demência. Com a amostra pareada, o ponto de corte estabelecido foi de 13,5, que apresentou sensibilidade de 80,8% e especificidade de 90,4%. A análise de regressão mostrou que a escolaridade e a idade predisseram significativamente o desempenho da FAB no grupo saudável. Finalmente, os dados normativos são fornecidos. Conclusões: O presente estudo mostrou que a FAB é uma ferramenta útil para discriminar entre pessoas saudáveis e aquelas com demência. No entanto, mais estudos são necessários para explorar a capacidade do instrumento para caracterizar a síndrome disexecutiva em pessoas com demência na população chilena.

ABSTRACT. The Frontal Assessment Battery (FAB) is a screening test that measures executive functions. Although this instrument has been validated in several countries, its diagnostic utility in a Chilean population has not been studied yet. Objectives: This study aimed to (1) adapt FAB in a Chilean population; (2) study the psychometric properties of the FAB in a Chilean population; (3) assess the sociodemographic influence in the performance of the FAB in a sample of healthy controls (HC); and (4) develop normative data for this healthy group. Methods: A HC (n=344) and a group of patients with dementia (n=156) were assessed with the Chilean version of FAB. Results: FAB showed good internal consistency (Cronbach's alpha=0.79) and acceptable validity based on the relationship with other variables. Factor analysis showed the unidimensionality of the instrument. Significant differences were found in the total FAB value between the HC and dementia groups. With the matched sample, the established cutoff point was 13.5, showing a sensitivity of 80.8% and a specificity of 90.4%. Regression analysis showed that education and age significantly predicted FAB performance in the healthy group. Finally, normative data are provided. Conclusions: This study shows that FAB is a useful tool to discriminate between healthy people and people with dementia. However, further studies are needed to explore the capacity of the instrument to characterize the dysexecutive syndrome in people with dementia in the Chilean population.

Introduction: Communicating the diagnosis of dementia is a medical challenge. Despite the the patients’ right to be informed of their diagnosis, diagnostic disclosure is globally underperformed. In Chile, previous research has addressed the implications of diagnosis from the perspectives of families and family caregivers, but the perspectives and implications from the patients’ perspectives remain unknown. Objective: To describe the experiences of patients following the diagnosis of dementia. Material and methods: Qualitative study. Interviews were performed to 11 individuals who had received the diagnosis of early-stage dementia of the Alzheimer’s type, 5 women and 6 men, average age 70 years old (64-82). Interviews transcripts were analyzed using content analysis with open coding, using software NVivo 11.0 Pro. Results: The following five generic categories were produced from the interpretation of interviews to describe the experience of patients after being informed of a diagnosis of dementia: the enabling role of families, being informed about dementia, self-stigma, ambivalence on sharing the diagnosis, and coping strategies. Conclusions: Findings report specific unmet needs of patients who have been communicated of the diagnosis of dementia of the Alzheimer’s type. Suggestions are presented to inform local health care and social support teams that face the challenge of developing interventions to support people with dementia and their families.

Resumen Introducción: Comunicar el diagnóstico de demencia es un importante desafío médico, por lo que tiende a ser una práctica poco frecuente no obstante el derecho de los pacientes a ser informados de sus diagnósticos. En Chile, existe investigación que describe las implicancias del diagnóstico de demencia en el sistema familiar y cuidadores informales, pero no se ha abordado esta experiencia desde la perspectiva de los pacientes, por lo que sus implicancias son también desconocidas. Objetivo: Describir las experiencias luego del diagnóstico de demencia desde la perspectiva de los pacientes. Material y método: Estudio cualitativo. Se realizó entrevistas a 11 personas, 6 hombres y 5 mujeres, con edad promedio 70 años (64-82), quienes recibieron el diagnóstico de demencia tipo Alzheimer en etapa leve y fueron informados de su diagnóstico por Neuróloga tratante. Las entrevistas transcritas fueron analizadas mediante análisis de contenido con codificación abierta, usando software NVivo 11.0 Pro. Resultados: Las siguientes cinco categorías temáticas genéricas fueron producidas a partir del análisis de las entrevistas, describiendo la experiencia de los pacientes luego de recibir el diagnóstico: rol capacitante de la familia, ser informado/a sobre la demencia, autoestigma, ambivalencia en contar el diagnóstico, y estrategias de adaptación al diagnóstico. Conclusiones: Los resultados de este estudio informan de necesidades específicas de los pacientes luego de ser informados del diagnóstico de demencia tipo Alzheimer. Se presentan consideraciones para el abordaje local del diagnóstico por equipos de salud y apoyo social que enfrentan el desafío de planificar la atención de personas con trastornos cognitivos y sus familias.

In Chile, more than 180 thousand people (1% of the population) have some form of dementia. The figure should increase to approximately 600,000 (3% of Chileans) by 2050. This disease poses major challenges to the society. One of them is the effective recognition of the autonomy and responsibility of the person living with this condition. This article aims to review the clinical assessment of competence, its agreement with the Chilean legal system and the challenges that the assessment of competence poses in clinical decision-making and the capacity of an individual make decisions, according to the new international obligations subscribed by Chile. It is concluded that inclusion is a pending challenge, reflected among other things, by the non-compliance with binding rules such as Article 12 of the Convention on the Rights of Persons with Disabilities, which affirms that persons with disabilities have the right to be recognized as a person everywhere, before the law.

RESUMO O Questionário de Inventário Neuropsiquiátrico (NPI-Q) é um instrumento baseado em informantes que mede a presença e a gravidade de 12 Sintomas Neuropsiquiátricos (NPS) em pacientes com demência, bem como o sofrimento do informante. Objetivo: Avaliar as propriedades psicométricas do NPI-Q e a prevalência de NPS em pacientes com doença de Alzheimer (DA). Métodos: Foram avaliados 53 pacientes com DA. Eles foram divididos em dois grupos diferentes: AD leve (n=26) e AD moderado (n=27). A validade convergente foi estimada correlacionando os resultados do NPI-Q com os escores do Inventário Neuropsiquiátrico (NPI) e um teste de eficiência cognitiva global (Addenbrooke's Cognitive Examination - Revised - ACE-R). A confiabilidade do NPI-Q foi analisada pelo cálculo da sua consistência interna. A prevalência de NPS foi estimada com NPI e NPI-Q. Resultados: Foram observadas correlações positivas e significativas entre NPI-Q, NPI e ACE-R (r=0,730; p<0,01 e 0>315; p<0>05). O instrumento apresentou um nível adequado de confiabilidade (alfa de Cronbach=0J83). Os NPS mais prevalentes foram apatia/indiferença (62,3%) e disforia/depressão (58,5%). Conclusão: O NPI-Q apresenta indicadores de validade e confiabilidade aceitáveis em pacientes com DA, o que indica que é um instrumento adequado para a avaliação rotineira de NPS na prática clínica.

ABSTRACT The Neuropsychiatric Inventory Questionnaire (NPI-Q) is an informant-based instrument that measures the presence and severity of 12 Neuropsychiatric Symptoms (NPS) in patients with dementia, as well as informant distress. Objective: To measure the psychometric properties of the NPI-Q and the prevalence of NPS in patients with Alzheimer's disease (AD) in Chile. Methods: 53 patients with AD were assessed. Subjects were divided into two different groups: mild AD (n=26) and moderate AD (n=27). Convergent validity was estimated by correlating the outcomes of the NPI-Q with Neuropsychiatric Inventory (NPI) scores and with a global cognitive efficiency test (Addenbrooke's Cognitive Examination - Revised - ACE-R). Reliability of the NPI-Q was analysed by calculating its internal consistency. Prevalence of NPS was estimated with both the NPI and NPI-Q. Results: Positive and significant correlations were observed between the NPI-Q, the NPI, and the ACE-R (r=0.730; p<0.01 and 0.315; p<0.05 respectively). The instrument displayed an adequate level of reliability (Cronbach's alpha=0.783). The most prevalent NPS were apathy/indifference (62.3%) and dysphoria/depression (58.5%). Conclusion: The NPI-Q exhibited acceptable validity and reliability indicators for patients with AD in Chile, indicating that it is a suitable instrument for the routine assessment of NPS in clinical practice.

Background: The inability to carry out activities of daily living (ADL) is prevalent in elderly people and it is associated with hypertension and stroke. Aim: To evaluate ADLs using the T-ADLQ in hypertensive patients with minor stroke. Subjects and Methods: T-ADLQ, Cognitive tests (Minimental and Addenbrooke), and Hamilton depression test were applied to 100 hypertensive ambulatory patients (55 without symptomatic stroke and 45 with ischemic stroke, Rankin ≤ 2). Results: In stroke patients the ability to perform ADL was significantly reduced compared with hypertensive patients without stroke. Cognitive dysfunction and depressive symptoms were associated with a lower ADL performance. Conclusions: The T-ADLQ is useful to evaluate ADL in hypertensive ambulatory patients with ischemic stroke.

Dementia is an important public health problem due to the complex challenges it poses during the progression of the disease and especially during its end-of-life stage. The aim of this article is to consider the issues that arise from the use of commonly administered therapies in patients with severe dementia. Scenarios where excessive or futile therapeutic interventions might occur are discussed. The article concludes that it is advisable to analyze the clinical criteria and ethical considerations related to the administration of those treatments in order to develop and disseminate better practice guidelines for health professionals.

Recent genetic and neuropathologic advances support the concept that frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) are overlapping multisystem disorders. While 10-15% of ALS patients fulfil criteria for FTD, features of motor neuron disease appear in approximately 15% of FTD patients, during the evolution of the disease. This overlap has been reinforced by the discovery of Transactive Response DNA Binding Protein 43 kDa (TDP43) inclusions as the main neuropathologic finding in the majority of ALS cases and almost a half of FTD cases. Also, an expansion in the intron of C9ORF72 (chromosome 9p21) has been identified in families affected by ALS, ALS-FTD and FTD. This review provides an update on the recent genetic and neuropathologic findings of ALS and FTD and a characterization of their clinical presentation forms, based on the current diagnostic criteria. Finally it underscores the importance of having a national registry of patients with ALS and FTD, to provide an earlier diagnosis and a multidisciplinary care.

RESUMO Objetivo: Analisar as propriedades psicométricas e utilitário de diagnóstico da versão chilena do rastreio frontal INECO (IFS-Ch) em uma amostra de pacientes com demência e controles. Métodos: Após a adaptação do instrumento para o contexto chileno e obtenção de evidências de validade de conteúdo, o IFS-Ch foi administrado a 31 pacientes com demência e 30 indivíduos do grupo controle, além de outros testes de eficiência cognitiva global e executiva. Cuidadores de pacientes com demência e informantes de indivíduos controles foram entrevistados com instrumentos de medidas de sintomas disexecutivos, gravidade da demência e estado funcional nas atividades da vida diária. Validade convergente e discriminante, consistência interna, pontos de corte, sensibilidade e especificidade para o IFS-Ch foram estimados. Resultados: A evidência de validade de conteúdo foi obtida através de consulta a um especialista. Evidências de validade convergente foram encontrados, bem como, descritas correlações significativas entre o IFS-Ch e outros instrumentos de medidas: de funções executivas (FAB, r=0,935; categorias alcançadas no MCST, r=0,791; erros perseverativos na MCST, r= -0,617; fluência verbal animais, r=0,728; "A" de fluência verbal, r=0,681; gravidade de demência e fluência verbal de "P", r=0,783), sintomas disexecutivos na vida diária (DEX, r= -0,494), (CDR, r= -0,75) e estado funcional nas atividades da vida diária (T-ADLQ, r= -0,745; AIVD, r=0,717). Quanto à confiabilidade, coeficiente alfa de Cronbach de 0,905 foi obtido. Quanto a utilidade de diagnóstico, um ponto de corte de 18 pontos (sensibilidade=0,903, especificidade=0,867) e uma área sob a curva de 0,951 foi estimada para distinguir entre pacientes com demência e sujeitos controles. Discussão: O IFS-Ch mostra propriedades psicométricas aceitáveis, apoiadas por evidências de validade e confiabilidade para sua utilização como medida de funções executivas em pacientes com demência. Sua utilidade diagnóstica para detectar pacientes com demência também é considerada aceitável.

ABSTRACT Objective: This study sought to analyze the psychometric properties and diagnostic accuracy of the Chilean version of the INECO Frontal Screening (IFS-Ch) in a sample of dementia patients and control Methods: After adapting the instrument to the Chilean context and obtaining content validity evidence through expert consultation, the IFS-Ch was administered to 31 dementia patients and 30 control subjects together with other executive assessments (Frontal Assessment Battery [FAB], Modified version of the Wisconsin Card Sorting Test [MCST], phonemic verbal fluencies [letters A and P] and semantic verbal fluency [animals]) and global cognitive efficiency tests (Mini mental State Examination [MMSE] and Addenbrooke's Cognitive Examination-Revised [ACE-R]). Caregivers of dementia patients and proxies of control subjects were interviewed with instruments measuring dysexecutive symptoms (Dysexecutive Questionnaire [DEX]), dementia severity (Clinical Dementia Rating Scale [CDR]) and functional status in activities of daily living (Activities of Daily Living Scale [IADL] and Technology-Activities of Daily Living Questionnaire [T-ADLQ]). Convergent and discriminant validity, internal consistency reliability, cut-off points, sensitivity and specificity for the IFS-Ch were estimated. Results: Evidence of content validity was obtained. Evidence of convergent validity was also found showing significant correlations (p<0.05) between the IFS-Ch and the other instruments measuring: executive functions (FAB, r=0.935; categories achieved in the MCST, r=0.791; perseverative errors in the MCST, r= -0.617; animal verbal fluency, r=0.728; A verbal fluency, r=0.681; and P verbal fluency, r=0.783), dysexecutive symptoms in daily living (DEX, r= -0.494), dementia severity (CDR, r= -0.75) and functional status in activities of daily living (T-ADLQ, r= -0.745; IADL, r=0.717). Regarding reliability, a Cronbach's alpha coefficient of 0.905 was obtained. For diagnostic accuracy, a cut-off point of 18 points (sensitivity=0.903; specificity=0.867) and an area under curve of 0.951 were estimated to distinguish between patients with dementia and control subjects. Discussion: The IFS-Ch showed acceptable psychometric properties, supported by evidence of validity and reliability for its use in the measurement of executive functions in patients with dementia. The diagnostic accuracy of the IFS-Ch for detecting dementia patients was also considered acceptable.

Background: The Addenbrooke's Cognitive Examination - Revised (ACE-R) is a good alternative to the Mini Mental State Examination (MMSE) for assessing cognitive capacities in dementia. Aim: To estimate the psychometric properties and diagnostic utility of the Addenbrooke's Cognitive Examination-Revised (ACE-R) in a Chilean elderly sample. Material and Methods: ACE-R was adapted for the Chilean population (ACE-R-Ch) and then administered to 60 dementia patients, 22 mild cognitive impairment (MCI) patients and 45 control subjects in addition to the MMSE for assessing global cognitive efficiency. Caregivers of dementia patients and collateral sources of MCI patients and elderly subjects without dementia were interviewed with measures of dementia severity, functional status in activities of daily living and cognitive changes. Convergent validity, internal consistency reliability, cutoff points, sensitivity and specificity for ACE-R-Ch were estimated. Results: Regarding convergent validity, the ACE-R-Ch showed significant correlations (p < 0,001) with another cognitive measure (r = 0,952 with MMSE), a rating for dementia severity (Spearman rho=-0,822 with CDR), functional capacity assessments (r = -0,70 with ADLQ-Ch; r = -0,725 with PFAQ-Ch; and r = 0,650 with IADL Scale) and a measure of cognitive changes (r = -0,633 with AD8-Ch). In terms of reliability, the test had a Cronbach alpha coefficient of 0.918. The best cut-off point to distinguish cases of dementia from control subjects was a score of 76, which reached a sensitivity of 0.92 and a specificity of 0.93. Conclusions: The ACE-R-Ch showed acceptable psychometric properties, becoming a valid and reliable instrument to assess global cognitive efficiency or cognitive impairment. Its diagnostic utility to detect dementia patients also worked very well in a Chilean elderly sample.

We report five male patients, aged 35 to 63 years who suffered from paretic neurosyphilis. The clinical course was that of a subacute dementia with a frontal syndrome, with more apathy than euphoria. All were HIV negative and four were heterosexual. In all, the cerebrospinal fluid had a mononuclear pleocytosis and a positive VDRL. EEG was abnormal in the 3 cases in whom it was performed. One patient in whom a brain angiography was performed, had images of vasculitis. Treatment with 18-24 million units of penicillin per day during two weeks or more, was partially effective.

Attention Deficit/Hyperactivity Disorder (ADHD) is a clinical syndrome characterized by an onset in early life. More than 65% of patients persist with manifestations of ADHD in adulthood. These symptoms may interfere in activities of daily-living, interpersonal relationships and professional and academic achievement. Nevertheless, the observation of an important group of adults with ADHD who do not show significant difficulties in the areas mentioned before puts into evidence the prognostic heterogeneity of this disorder. One of the current, most accepted explanations is the Double-Pathway Model: two double-dissociated deficits (Executive Disorders and Delayed-Reward Processing impairments) are involved in the genesis of ADHD, which explains the existence of different behavioral phenotypes. Moreover, personality traits like tenacity or perseverance are associated with higher levels of achievement in adults. On these grounds, we propose the hypothesis that the neurobiological correlate of tenacity/perseverance is a preserved Delayed-Reward Processing capacity, although further studies are needed to verify this idea.

Jonathan Swift is one of the most celebrated satirist writers in literature. His well-known "Gulliver's Travels", apartfrom being a serious human being criticism, contains many interesting ana unrecognized comments about medical and other scientific facts. Swift made what seems to be thefirst account of a dementing illness in the elderly; his description fits well with what we now know as Alzheimer's disease. He also described a condition now called synaesthesia, a very interestingphenomenon that may contribute to creativity. In thispaper, we review aspects ofhis Ufe and reveal these amazing descriptions as samples of Swift's extraordinary power of observation.