Karolina G. Cesar

Primary progressive aphasia: Classification of variants in 100 consecutive Brazilian cases

Primary progressive aphasia (PPA) is a neurodegenerative clinical syndrome characterized primarily by progressive language impairment. Recently, consensus diagnostic criteria were published for the diagnosis and classification of variants of PPA. The currently recognized variants are nonfluent/agrammatic (PPA-G), logopenic (PPA-L) and semantic (PPA-S). OBJECTIVE To analyze the demographic data and the clinical classification of 100 PPA cases. METHODS Data from 100 PPA patients who were consecutively evaluated between 1999 and 2012 were analyzed. The patients underwent neurological, cognitive and language evaluation. The cases were classified according to the proposed variants, using predominantly the guidelines proposed in the consensus diagnostic criteria from 2011. RESULTS The sample consisted of 57 women and 43 men, aged at onset 67.2±8.1 years (range of between 53 and 83 years). Thirty-five patients presented PPA-S, 29 PPA-G and 16 PPA-L. It was not possible to classify 20% of the cases into any one of the proposed variants. CONCLUSION It was possible to classify 80% of the sample into one of the three PPA variants proposed. Perhaps the consensus classification requires some adjustments to accommodate cases that do not fit into any of the variants and to avoid overlap where cases fit more than one variant. Nonetheless, the established current guidelines are a useful tool to address the classification and diagnosis of PPA and are also of great value in standardizing terminologies to improve consistency across studies from different research centers.

Prevalence of Cognitive Impairment Without Dementia and Dementia in Tremembé, Brazil.

Background:The prevalence of cognitive impairment is insufficiently determined in developing countries. The aim of this study was to ascertain the prevalence of cognitive impairment without dementia and dementia in community-dwelling elderly in Brazil. Methods:This was a single-phase cross-sectional survey of the elderly (aged 60 years and above) living in the municipality of Tremembé, Brazil. Twenty percent of the households with elderly persons were randomly selected from urban and rural areas, to obtain a homogenous representation of all socioeconomic and cultural levels. Results:We assessed 630 individuals [mean age, 71.3 y (±7.99); mean years of education, 4.9 (±4.54)] and found prevalence rates of 17.5% (95% confidence interval, 14.6-20.6) for dementia and 19.5% (95% confidence interval, 16.6-22.8) for cognitive impairment without dementia. These prevalence rates were influenced by age (P<0.001) and by educational level (P<0.001). There was no significant sex difference among diagnostic groups (P=0.166). The prevalence of dementia was higher in relatively younger individuals (below 70 y) when compared with other studies. Besides, dementia was associated with low socioeconomic status, stroke, previous psychiatric disorder, alcoholism, and epilepsy. Conclusions:The prevalence of dementia in this study was higher than in other studies, particularly among younger elderly.

Prevalence of depressive symptoms among elderly in the city of Tremembé, Brazil: Preliminary findings of an epidemiological study

Depression is a heterogeneous mental disease classified as a set of disorders, which manifest with a certain duration, frequency and intensity. The prevalence of depression in the elderly ranges from 0.5 to 16%. OBJECTIVE To establish, in an epidemiological study, the prevalence of significant depressive symptoms in the population aged 60 years or older. METHODS Results of a cross-sectional epidemiological study, involving home visits, being carried out in the city of Tremembé, Brazil, were reported. The sample was randomly selected by drawing 20% of the population over 60 years from each of the citys census sectors. In this single-phase study, the assessment included clinical history, physical and neurological examination, cognitive evaluation, the Cornell scale and the Patient Health Questionnaire for psychiatric symptoms. Scores greater than or equal to 8 on the Cornell scale were taken to indicate the presence of depressive symptoms. RESULTS A total of 455 elders were assessed, and of these 169 (37.1%) had clinically significant depressive symptoms (CSDS). Depression prevalence was higher among women (p<0.001) and individuals with lower education (p=0.033). The Chi-square test for trends showed a significant relationship where lower socioeconomic status was associated with greater likelihood of depressive symptoms (p=0.005). CONCLUSION The prevalence of depressive symptoms was high in this sample of the population-based study and was associated with female gender, low educational level and socioeconomic status. The assessment of the entire population sample must be completed.

Addenbrooke's cognitive examination-revised: normative and accuracy data for seniors with heterogeneous educational level in Brazil

BACKGROUND Several cognitive tools have been developed aiming to diagnose dementia. The cognitive battery Addenbrookes Cognitive Examination - Revised (ACE-R) has been used to detect cognitive impairment; however, there are few studies including samples with low education. The aim of the study was to provide ACE-R norms for seniors within a lower education, including illiterates. An additional aim was to examine the accuracy of the ACE-R to detect dementia and cognitive impairment no dementia (CIND). METHODS Data originated from an epidemiological study conducted in the municipality of Tremembé, Brazil. The Brazilian version of ACE-R was applied as part of the cognitive assessment in all participants. Of the 630 participants, 385 were classified as cognitively normal (CN) and were included in the normative data set, 110 individuals were diagnosed with dementia, and 135 were classified as having CIND. RESULTS ACE-R norms were provided with the sample stratified into age and education bands. ACE-R total scores varied significantly according to age, education, and sex. To distinguish CN from dementia, a cut-off of 64 points was established (sensitivity 91%, specificity 76%) and to differentiate CN from CIND the best cut-off was 69 points (sensitivity 73%, specificity 65%). Cut-off scores varied according to the educational level. CONCLUSIONS This study offers normative and accuracy parameters for seniors with lower education and it should expand the use of the ACE-R for this population segment.

GRN and MAPT Mutations in 2 Frontotemporal Dementia Research Centers in Brazil.

Background:Mutations in GRN (progranulin) and MAPT (microtubule-associated protein tau) are among the most frequent causes of monogenic frontotemporal dementia (FTD), but data on the frequency of these mutations in regions such as Latin America are still lacking. Objective:We aimed to investigate the frequencies of GRN and MAPT mutations in FTD cohorts from 2 Brazilian dementia research centers, the University of Sao Paulo and the Federal University of Minas Gerais medical schools. Methods:We included 76 probands diagnosed with behavioral-variant FTD (n=55), semantic-variant Primary Progressive Aphasia (PPA) (n=11), or nonfluent-variant PPA (n=10). Twenty-five percent of the cohort had at least 1 relative affected with FTD. Results:Mutations in GRN were identified in 7 probands, and in MAPT, in 2 probands. We identified 3 novel GRN mutations (p.Q130X, p.317Afs*12, and p.K259Afs*23) in patients diagnosed with nonfluent-variant PPA or behavioral-variant FTD. Plasma progranulin levels were measured and a cutoff value of 70 ng/mL was found, with 100% sensitivity and specificity to detect null GRN mutations. Conclusions:The frequency of GRN mutations was 9.6% and that of MAPT mutations was 7.1%. Among familial cases of FTD, the frequency of GRN mutations was 31.5% and that of MAPT mutations was 10.5%.

CONVERSION FROM MILD COGNITIVE IMPAIRMENT TO DEMENTIA: A BRAZILIAN STUDY

entire sample was 70.37613.35 years, and included greater proportion of women (71.08%) than men. Mean MMSE scores increased with years of education regardless of age group, but decreased with increasing age, while the 12 years of education group had performed poorest. For the initial unadjusted estimates, Whites had the highest mean MMSE score (AAs1⁄427.1663.43; Whites1⁄427.6263.12; Hispanics1⁄425.4064.72; Asians1⁄426.8563.01; Others1⁄426.9862.70), With adjustments for age and education, racerelated differences in MMSE score became attenuated (AAs1⁄426.2663.13; Whites1⁄426.1763.32; Hispanics1⁄424.7364.49; Asians1⁄425.6162.87; Others1⁄426.0162.80), except for Hispanics whose MMSE score remained relatively lower. Conclusions: Our data underscores the importance of increased attention to age and education adjusted MMSE norms in AAs. While it is possible that our observations in other racial groups may be influenced by sample size, validation these findings in other cohorts, may improve the efficiency of the tool, and therefore, its clinical and research use in diverse populations. P2-528 CONVERSION FROM MILD COGNITIVE IMPAIRMENT TO DEMENTIA: A BRAZILIAN STUDY

Prevalence study of cognitive impairment no dementia (CIND) and dementia in tremembé, brazil

am in at io n : M o C A 6 M o n tr ea l C o g n it iv e A ss es sm en t Karolina G. Cesar, Sonia M.D. Brucki, Leonel T. Takada, Luiz Fernando C. Nascimento, Camila M.S. Gomes, Milena C.S. Almeida, Maira O. Oliveira, Fabio H.G. Porto, Mirna L.H. Senaha, Valeria S. Bahia, Thais Bento Lima Silva, Jessica N. Ianof, Mario A. Cecchini, Luciana Cassimiro, Marcia R. Gonçalves, Jerusa Smid, Claudia S. Porto, Maria Teresa Carthery-Goulart, Mônica Sanches Yassuda, Leticia L. Mansur, Ricardo Nitrini, Sr,, University of S~ao Paulo, S~ao Paulo, Brazil; University of Taubat e, Taubat e, Brazil; Universidade Federal do ABC, S~ao Bernardo do Campo, Brazil. Contact e-mail: karolgcesar@gmail.com

Performance of the Visual Analogue Scale of Happiness and of the Cornell Scale for Depression in Dementia in the Tremembé Epidemiological Study, Brazil

Depression is a major growing public health problem. Many population studies have found a significant relationship between depression and the presence of cognitive disorders. Objective To establish the correlation between the Visual Analogue Scale of Happiness and the Cornell Scale for Depression in Dementia in the population aged 60 years or over in the city of Tremembé, state of São Paulo, Brazil. Methods An epidemiological survey involving home visits was carried out in the city of Tremembé. The sample was randomly selected by drawing 20% of the population aged 60 years or older from each of the citys census sectors. In this single-phase study, the assessment included clinical history, physical and neurological examination, cognitive evaluation, and application of both the Cornell Scale and the Analogue Scale of Happiness for psychiatric symptoms. The presence of depressive symptoms was defined as scores greater than or equal to 8 points on the Cornell Scale. Results A total of 623 subjects were evaluated and of these 251 (40.3%) had clinically significant depressive symptoms on the Cornell Scale, with a significant association with female gender (p<0.001) and with lower education (p=0.012). One hundred and thirty-six participants (21.8%) chose the unhappiness faces, with a significant association with age (p<0.001), female gender (p=0.020) and low socioeconomic status (p=0.012). Although there was a statistically significant association on the correlation test, the correlation was not high (rho=0.47). Conclusion The prevalence of depressive symptoms was high in this sample and the Visual Analogue Scale of Happiness and Cornell Scale for Depression in Dementia should not be used as similar alternatives for evaluating the presence of depressive symptoms, at least in populations with low educational level.