La atrofia cerebral como hallazgo o factor predictor del deterioro cognitivo en el envejecimiento normal / Cerebral Atrophy as a Finding of Predictive Factor for Cognitive Impairment in Normal Aging

Introducción: En el curso del envejecimiento es conocida la existencia de un patrón complejo de cambios estructurales cerebrales, conductuales y cognitivos, en ocasiones relacionados con enfermedades neurológicas y psiquiátricas. Objetivo: Determinar la posible relación de causalidad de la atrofia cerebral en la aparición del deterioro cognitivo en el curso del envejecimiento normal. Métodos: Se desarrolló un estudio retrospectivo, transversal, descriptivo y observacional. El universo estuvo conformado por el total de los pacientes de ambos sexos con edades comprendidas entre 35-74 años de edad, con indicaciones previas de tomografía computarizada de cráneo y cuyos resultados fueron informados con signos de atrofia cerebral, cuya cifra ascendió a 733. Resultados: El grupo de edad que predomino fue el de 45-54 años (35,3 por ciento), así como las pacientes del sexo femenino (66,3 por ciento). El 27,7 por ciento tenía como nivel de escolaridad el técnico medio superior y 36,2 por ciento fueron pacientes amas de casa. El 99,7 por ciento fueron diestros. Un total de 368 voluntarios presentaron deterioro cognitivo y 365 sujetos no evidenciaron declive en las funciones exploradas. Las funciones de atención y cálculo y retención verbal a corto plazo fueron las que se vieron más afectadas, seguidas de orientación espacial y memoria verbal de fijación. Conclusiones: No se logró establecer una relación de causalidad significativa entre el diagnóstico radiológico de atrofia cerebral y la presencia de deterioro cognitivo(AU)

Introduction: In the course of aging, the existence of a complex pattern of behavioral, cognitive and cerebral structural changes is known, sometimes related to neurological and psychiatric diseases. Objective: To determine the possible causal relationship of cerebral atrophy with the onset of cognitive impairment in the course of normal aging. Methods: A retrospective, cross-sectional, descriptive and observational study was carried out. The study universe consisted of all patients of both sexes aged 35-74 years, with previous indications for cranial computed tomography and whose results were reported with signs of cerebral atrophy, which numbered 733. Results: The predominant age group was 45-54 years old (35.3percent), as well as female patients (66.3percent). The educational level of 27.7percent of the patients was technical high school and 36.2percent were housewife patients. A total of 99.7percent were right-handed. A total of 368 volunteers showed cognitive impairment and 365 subjects showed no decline in the tested functions. The functions of attention and calculation, as well as short-term verbal retention, were the most affected, followed by spatial orientation and speech retention memory. Conclusions: No significant causal relationship was established between the radiological diagnosis of cerebral atrophy and the presence of cognitive impairment(AU)

Spatial distribution of cognitive dysfunction and its risk factors in Chinese population aged 45 years and above / 南方医科大学学报

OBJECTIVE@#To analyze the spatial distribution of the prevalence of cognitive dysfunction and its risk factors in Chinese population aged 45 years and above to provide evidence for formulating regional prevention and control strategies.@*METHODS@#The study subjects with complete cognitive function data were selected from the follow-up data of the China Health and Retirement Longitudinal Study (CHARLS) Phase IV. ArcGis 10.4 software was used for spatial analysis of the prevalence of cognitive dysfunction in the population aged 45 years and above for each province based on the geographic information system (GIS) technology.@*RESULTS@#In 2018, the overall prevalence of cognitive dysfunction was 33.59% (5951/17716) in individuals aged 45 and above in China. Global spatial autocorrelation analysis indicated a spatial clustering and a positive autocorrelation (P < 0.001) of the prevalence of cognitive dysfunction in the study subjects, with a Moran's I value of 0.333085. The results of local spatial autocorrelation analysis showed that the southwestern region of China was the main aggregation area of patients with cognitive dysfunction. Geographically weighted regression analysis suggested that a male gender, an advanced age, and illiteracy were the major risk factors for cognitive dysfunction (P < 0.05). These 3 risk factors showed a spatial distribution heterogeneity with greater impact in the northern, western, and northwestern regions of China, respectively.@*CONCLUSION@#The prevalence of cognitive dysfunction is relatively high in individuals aged 45 years and above in China. A male gender, an advanced age, and illiteracy are the major risk factors for cognitive dysfunction and show different spatial distribution patterns, with the northern, western and northwestern regions of China as the key areas for prevention and control, where the prevention and control measures should be designed based on local conditions.

Association between cognitive impairment and main metals among oldest old aged 80 years and over in China / 中华预防医学杂志

Objective: To identify the main metals involved in cognitive impairment in the Chinese oldest old, and explore the association between these metal exposures and cognitive impairment. Methods: A cross-sectional study was conducted on 1 568 participants aged 80 years and older from Healthy Aging and Biomarkers Cohort Study (2017 to 2018). Fasting venous blood was collected to measure the levels of nine metals (selenium, lead, cadmium, arsenic, antimony, chromium, manganese, mercury, and nickel). The cognitive function of these participants was evaluated by using the Chinese version of the Mini-Mental State Examination (CMMSE). The random forest (RF) was applied to independently identify the main metals that affected cognitive impairment. The multivariate logistic regression model and restricted cubic splines (RCS) model were used to further verify the association of the main metals with cognitive impairment. Results: The age of 1 568 study subjects was (91.8±7.6) years old, including 912 females (58.2%) and 465 individuals (29.7%) with cognitive function impairment. Based on the RF model (the out-of-bag error rate was 22.9%), the importance ranking of variables was conducted and the feature screening of five times ten-fold cross-validation was carried out. It was found that selenium was the metal that affected cognitive function impairment, and the other eight metals were not included in the model. After adjusting for covariates, the multivariate logistic regression model showed that with every increase of 10 μg/L of blood selenium levels, the risk of cognitive impairment decreased (OR=0.921, 95%CI: 0.889-0.954). Compared with the lowest quartile(Q1) of blood selenium, the ORs (95%CI) of Q3 and Q4 blood selenium were 0.452 (0.304-0.669) and 0.419 (0.281-0.622) respectively. The RCS showed a linear dose-response relationship between blood selenium and cognitive impairment (Pnonlinear>0.05). Conclusion: Blood selenium is negatively associated with cognitive impairment in the Chinese oldest old.

Relationship between nutrient-related dietary pattern and mild cognitive impairment in middle-aged and elderly people in 15 provinces of China / 中华流行病学杂志

Objective: To explore the relationship between nutrient-related dietary pattern and mild cognitive impairment (MCI) in middle-aged and elderly people. Methods: A total of 6 444 middle-aged and elderly people aged ≥55 years were selected in 2018 China Health and Nutrition Survey. MCI was evaluated by Mini-Mental State Examination, and the intakes of various foods were obtained by consecutive 3-day 24-hour dietary survey and weighing method. The intakes of various nutrients and total dietary energy were calculated based on the food composition table. Demographic and social information, lifestyle and health status of the respondents were obtained through questionnaire survey and physical measurements. In this study, vitamin C, vitamin E, zinc, iron, copper and selenium were selected as dependent variables. Nutrient-related dietary patterns were extracted by reduced rank regression method, and the relationship between dietary patterns and MCI was analyzed by multivariate logistic regression model. Results: Six dietary patterns were extracted in this study, and dietary pattern 1 with the highest explanatory degree was selected for subsequent analysis. Dietary pattern 1 was characterized by higher intakes of legume products, vegetables, fruits, nuts, pork, aquatic products and plant oil. Multivariate logistic regression analysis showed that the risk of MCI was lower in Q4 dietary score group than in Q1 dietary score group (OR=0.69, 95%CI: 0.49-0.98) in the 55-64 age group. In people with sleep duration of 8 hours per day, the risk of MCI was reduced in Q2, Q3 and Q4 dietary score groups compared with the Q1 dietary score group, with OR values of 0.68 (95%CI: 0.51-0.92), 0.67 (95%CI: 0.49-0.92) and 0.65 (95%CI: 0.45-0.92), respectively. Interaction analysis showed that the risk for MCI increased in those aged 65-74 years and ≥75 years compared with those aged 55-64 years in Q1 dietary score group. However, the risk for MCI decreased in both age groups as dietary pattern scores increased. Compared with those with sleep duration less or more than 8 hours per day in Q1 dietary score group, those with sleep duration of 8 hours per day in Q2 and Q3 dietary score groups had a reduced risk for MCI. Conclusion: Dietary patterns with higher intakes of legume products, vegetables, fruits, nuts, pork, aquatic products, and plant oil are negatively associated with MCI in people aged 55-64 years and those who slept 8 hours per day, and may reduce the risk of MCI with aging.

Asociación entre nivel educacional y sospecha de deterioro cognitivo en personas mayores chilenas: resultados de la Encuesta Nacional de Salud 2016-2017 / Association between educational level and suspicion of cognitive imparirment in Chilean older people

BACKGROUND: A low education level has been associated with cognitive impairment in older adults. AIM: To determine the association between educational attainment and suspicion of cognitive imparirment in older Chilean population. MATERIAL AND METHODS: Data from 2,005 adults aged ≥ 60 years assessed during 2016-2017 Chilean National Health Survey were included. Education was self-reported and categorized as primary: ≤ 8 years; secondary: 9 to 12 years and beyond secondary: > 12 years. suspicion of cognitive imparirment was assessed with the Mini-Mental questionnaire. RESULTS: Men and women with low education attainment had a higher prevalence of cognitive impairment (33% [95% confidence intervals (CI): 24; 41] and 27% [95% CI: 21; 33], respectively). Men who reported less schooling (≤ 8 years) were more likely to be at risk of suspicion of cognitive imparirment (Odds ratio (OR): 4.53 [95% CI: 1.10, 18.62]) compared to their peers. Women showed a substantially higher magnitude of association than men. The probability of suspicion of cognitive imparirment increased 9-times (OR: 9.96 [95% CI: 1.24; 79.6]) for 9-12 years and 18-times for ≤ 8 years of education (OR: 18.8 [95% CI: 2.42; 146.1]) compared to women with higher education. CONCLUSIONS: Older adults with low education attainment had an increased likelihood of developing suspicion of cognitive imparirment. However, the risk differs by sex, being higher in women than men.

Funciones cognitivas y salud mental en personas mayores durante la pandemia por COVID-19, factores de riesgo y factores protectores: una revisión sistemática cualitativa / Review on the possible effects of COVID-19 pandemic on the cognitive function of older people

Risk and protective factors for cognitive impairment and mental health in older people are widely identified. However, the impact of COVID-19 pandemic on cognitive functioning and neuropsychiatric symptoms in older people is not well known. Therefore, we carried out a systematic review on the impact of COVID-19 pandemic on cognitive functioning and mental health of older people, identifying risk and protective factors. We used the criteria and flowchart established in PRISMA statement, considering studies from PubMed, Scopus and Web of Science databases between the years 2019 and 2021. The search fetched 55 final articles, where the analysis was carried out. The evidence suggests that the Covid 19 Pandemic had a direct and indirect impact on the cognitive function, mental and physical health of older people and variables such as resilience and personality characteristics moderated the consequences of this crisis.

Transition rules of cognitive frailty and influencing factors in the elderly in China / 中华流行病学杂志

Objective: To understand the transition rules of cognitive frailty and its influencing factors in the elderly in China and provide evidence for the early intervention of cognitive frailty. Methods: Data were retrospectively collected from China Health and Retirement Longitudinal Study with 3 round consecutive survey (2011, 2013, 2015) and the state of the subjects were classified into four categories: robust-normal cognitive, cognitive impairment, physical frailty, and cognitive frailty. A multi-state Markov model was established to explore the transition rules of cognitive frailty and its influencing factors. Results: A total of 3 470 older adults were included, and 350 (10.09%) had cognitive frailty at baseline. After two years, the probability of cognitive frailty in the cognitive impairment population was higher than that in people with physical frailty (31.6% vs. 7.6%). Persons with cognitive frailty were more likely to become physical frailty (29.7% vs. 15.6%). Being women (HR=1.599, 95%CI: 1.058-2.417), comorbidity (HR=3.035, 95%CI: 1.090-8.450), and depression (HR=1.678, 95%CI: 1.153-2.441) were the risk factors associated with cognitive frailty in the elderly, while being educated (HR=2.367, 95%CI: 1.567-3.575) was a protective factor for the transition of cognitive frailty to physical frailty. Conclusions: The prevalence of cognitive frailty is relatively high in the elderly in China. Those with cognitive impairment have a higher probability of cognitive frailty. Gender, education level, comorbidity, and depression are the main influencing factors for the occurrence and transition of cognitive frailty.

A cohort study of association between sleep duration and cognitive impairment in the elderly aged 65 years and older in China / 中华流行病学杂志

Objective: To explore the effect of sleep duration on the risk of cognitive impairment in the elderly in China. Methods: Baseline data of 9 679 elderly individuals with intact cognition were collected from the Chinese Longitudinal Healthy Longevity Survey (CLHLS) in 2005, and followed up was conducted until 2018. Cox proportional hazards model was used to analyze the association between different sleep durations and the risk for cognitive impairment in the elderly. Results: Compared with elderly with sleep duration of 6 hours per day, those with sleep duration less than 5 hours had increased risk for cognitive impairment by 30% (HR=1.30, 95%CI: 1.05-1.62), and those with sleep durations of 7 hours, 8 hours and more than 9 hours had increased risk for cognitive impairment by 34% (HR=1.34,95%CI: 1.09-1.64), 40% (HR=1.40,95%CI: 1.17-1.69) and 43% (HR=1.43,95%CI: 1.19-1.70), respectively. Trend test showed that the risk of cognitive impairment increased with the extension of sleep duration (>6 h), and there was a dose-response relationship (P<0.001). However, self-rated sleep quality was not associated with the risk for cognitive impairment in the elderly. Conclusions: The shorter and longer sleep duration were associated an increased risk of cognitive impairment in the elderly aged ≥65 years in China, suggesting that optimizing sleep duration might delay the occurrence of cognitive impairment.

Research on predicting the risk of mild cognitive impairment in the elderly based on the joint model / 中华流行病学杂志

Objective: To construct and compare the dynamic prediction models of the risk of mild cognitive impairment (MCI) in the elderly based on six different cognitive function scales. Methods: Based on longitudinal data from the Alzheimer's Disease Neuroimaging Initiative from 2005 to 2020, Mini-mental state examination (MMSE), functional activities questionnaire (FAQ), Alzheimer's disease assessment scale-cognitive (ADAS-Cog) 11, ADAS-Cog13, ADAS delayed word recall (ADASQ4), and Rey auditory verbal learning test (RAVLT)_immediate were used as longitudinal cognitive function evaluation indicators to assess the longitudinal changes in cognitive function. The joint model was used to analyze association between indicators variation trajectory and survival outcome MCI, and construct the risk prediction model of MCI in the elderly, the linear mixed model was constructed the longitudinal sub-model which described the evolution of a repeated measure over time, a proportional hazards model was constructed the survival sub-model, and the two sub-models were connected through the correlation parameter (α). The areas under the receiver operator characteristic curve (AUC) were used to evaluate the predictive efficacy of the model in the follow-up period of (t, t+Δt). The starting point t was selected at the 30th, 42nd, and 54th month, and the Δt was selected as 15 and 21 months. Based on the prediction model, an example of the research object was selected for dynamic individual predictions of the risk of MCI. Results: Finally, 544 older adults (aged 60 years and above) with normal baseline cognitive status were included, of which 119 cases (21.9%) had MCI during the follow-up process were regarded as the case group, and 425 cases remained normal as the control group. The joint model suggests that the longitudinal trajectories of the six evaluation indicators are all related to the risk of MCI (P<0.001). The risk of MCI decreased by 32.3% (HR=0.677, 95%CI: 0.541-0.846) and 10.8% (HR=0.892, 95%CI: 0.865-0.919) for each one-point increase of MMSE and RAVLT_immediate longitudinal scores. The risk of MCI increased by 53.2% (HR=1.532, 95%CI: 1.393-1.686), 36.2% (HR=1.362, 95%CI: 1.268-1.462), 23.2% (HR=1.232, 95%CI: 1.181-1.285), and 85.1% (HR=1.851, 95%CI:1.629-2.104) for each one-point increase of FAQ, ADAS-Cog11, ADAS-Cog13, and ADASQ4 longitudinal scores. AUC results show that RAVLT_immediate (0.760 2) and ADASQ4 (0.755 8) have higher average prediction efficiency, followed by ADAS-Cog13 (0.743 7), ADAS-Cog11 (0.715 3), FAQ (0.700 8) and MMSE (0.629 5). ADASQ4 joint model was used to provide a dynamic individual prediction of the risk of MCI. The average probability of MCI after five years of follow-up and ten years of follow-up in the example individuals were 8% and 40%, respectively. Conclusions: The RAVLT_immediate and ADASQ4 scales, which are only for memory tests, have high accuracy in predicting the risk of MCI. Using the RAVLT_immediate and ADASQ4 scales as longitudinal cognitive function evaluation indicators to construct a joint model, the results can provide a basis for realizing MCI risk prediction for the elderly.

Deterioro cognitivo en poblaciones urbanas y rurales de la mediana altura geográfica en Bolivia: prevalencia y factores asociados / Cognitive impairment in urban and rural populations of the middle altitude in Bolivia: prevalence and associated factors

RESUMEN INTRODUCCIÓN: El deterioro cognitivo es una patología importante entre los ancianos, pero pocos estudios evalúan a poblaciones en una altura geográfica importante. OBJETIVOS: Caracterizar y encontrar los factores asociados al deterioro cognitivo en poblaciones urbanas y rurales de la mediana altura geográfica. METODOLOGÍA: Estudio transversal analítico, se evaluó el deterioro cognitivo con el Test de Pfeiffer (Alpha de Cronbach: 0,69), sus resultados se combinaron versus tres variables socioeducativas y cuatro comorbilidades; se obtuvo estadísticos analíticos. RESULTADOS: De los 400 adultos mayores, el 26,5% (106) no tuvo deterioro cognitivo, el 47,5% (190) tuvo un deterioro leve, el 25,5% (102) moderado y el 0,5% (2) severo; el 60% fueron mujeres, la mediana de edades fue de 66 años (rango intercuartílico: 63-69 años), el 67% vivían en la zona rural. En el análisis multivariado se encontró que, hubo más deterioro cognitivo moderado/severo a mayor edad (RPa: 1,05; IC95%: 1,02-1,08; p<0,001), entre los que tenían diabetes (RPa: 1,23; IC95%: 1,17-1,29; p<0,001), hipertensión arterial (RPa: 1,47; IC95%: 1,33-1,61; p<0,001), enfermedad renal crónica (RPa: 2,21; IC95%: 2,01-2,43; p<0,001) e insuficiencia cardiaca (RPa: 2,25; IC95%: 1,92-2,64; p<0,001); en cambio, los que tenían grado universitario tuvieron menos deterioro cognitivo (RPa: 0,89; IC95%: 0,22-0,65; p<0,001); ajustados por el sexo y el lugar de residencia. CONCLUSIONES: Se encontró importantes asociaciones del deterioro cognitivo en una población adulta mayor que residía entre los 2500-3900 msnm, estos resultados son importantes por no ser una población muy estudiada.

INTRODUCTION: Cognitive impairment is an important pathology among the Aged, but few studies evaluate populations at an important geographical height. OBJECTIVES: To characterize and find the factors associated with cognitive deterioration in urban and rural populations of medium geographic height. METHODOLOGY: Analytical cross-sectional study, cognitive impairment was evaluated with the Pfeiffer Test (Cronbach's Alpha: 0.69), its results were combined versus three socio-educational variables and four comorbidities; analytical statistics were obtained. RESULTS: Of the 400 older adults, 26.5% (106) had no cognitive impairment, 47.5% (190) had mild impairment, 25.5% (102) moderate and 0.5% (2) severe; 60% were women, the median age was 66 years (interquartile range: 63-69 years), 67% lived in rural areas. In the multivariate analysis it was found that there was more moderate / severe cognitive impairment at older age (RPa: 1.05; 95% CI: 1.02-1.08; p <0.001), among those with diabetes (RPa: 1, 23; 95% CI: 1.17-1.29; p <0.001), arterial hypertension (RPa: 1.47; 95% CI: 1.33-1.61; p <0.001), chronic kidney disease (RPa: 2.21, 95% CI 2.01-2.43, p <0.001) and heart failure (RPa: 2.25, 95% CI 1.92-2.64, p <0.001); On the other hand, those with a university degree had less cognitive deterioration (RPa: 0.89, 95% CI: 0.22-0.65, p <0.001); adjusted for sex and place of residence. CONCLUSION: Important associations of cognitive deterioration were found in an older adult population residing between 2500-3900 msnm, these results are important as they are not a highly studied population; therefore, these data should be taken for diagnosis and treatment.

Olfactory impairment and the risk of cognitive decline and dementia in older adults: a meta-analysis / Distúrbio olfativo e o risco de declínio cognitivo e demência em idosos: uma metanálise

Abstract Introduction The prediction of the impact of olfactory impairment on cognitive decline in older adults has been different among different age groups. Objective This meta-analysis sought to estimate the predictive power of olfactory impairment on cognitive decline during follow-up in older adults of different ages. Material and methods A medical literature search was carried out using these databases for eligible studies: MEDLINE, COCHRANE and EMBASE. Studies recording olfaction and cognition detection at the beginning and end of the follow-up were included in the preliminary screening. The medical records of older adults without cognitive impairment at the beginning of the follow-up were taken into account in this analysis. Raw data was extracted in order to estimate the relative risk and the corresponding 95% confidence interval (95% CI). Subgroup analysis of age was performed to eliminate the effect of age on the results. Statistical heterogeneity was measured using the I 2 index and Cochran's Q test. Results Eight studies were enrolled in this analysis (3237 events and 13165 participants), and the pooled relative risk for the 70-80 years old subgroup was 2.00 (95% CI = 1.79-2.23). Conclusion Relatively, there is a higher risk of cognitive impairment at the end of follow-up in younger adults with olfactory impairment at the beginning of follow-up. The length of follow-up has a little effect on the relative risk.

Resumo Introdução A previsão do impacto do comprometimento olfativo no declínio cognitivo em idosos tem sido distinta entre diferentes faixas etárias. Objetivo Esta metanálise buscou estimar o poder preditivo do comprometimento olfativo no declínio cognitivo durante o seguimento em idosos de diferentes idades. Material e métodos Foi feita uma pesquisa na literatura médica nos seguintes bancos de dados para estudos elegíveis: Medline, Cochrane e Embase. Os estudos que registraram olfação e detecção de cognição no início e no fim do seguimento foram incluídos na triagem preliminar. Os prontuários médicos de idosos sem comprometimento cognitivo no início do seguimento foram considerados nessa análise. Os dados brutos foram extraídos para estimar o risco relativo e o intervalo de confiança de 95% (IC95%) correspondente. A análise de subgrupos da idade foi feita para eliminar o efeito da idade nos resultados. A heterogeneidade estatística foi medida utilizando o índice I2 e o teste Q de Cochran. Resultados Oito estudos foram incluídos nesta análise (3.237 eventos e 13.165 participantes) e o risco relativo combinado para o subgrupo de 70 a 80 anos foi de 2,00 (IC95% = 1,79-2,23). Conclusão Relativamente, existe um risco maior de comprometimento cognitivo no fim do seguimento em adultos mais jovens que se se apresentam com comprometimento olfativo no início do seguimento. A duração do seguimento tem um pequeno efeito no risco relativo.

Alcohol Cessation in Late Life is Associated with Lower Risk of Cognitive Impairment among the Older Adults in China / 生物医学与环境科学（英文）

Objective@#Evidence regarding alcohol consumption and cognitive impairment is controversial. Whether cessation of drinking alcohol by non-dependent drinkers alters the risk of cognitive impairment remains unknown. This study prospectively evaluated the potential association between the history of lifetime alcohol cessation and risk of cognitive impairment.@*Methods@#This study included 15,758 participants age 65 years or older, selected from the Chinese Longitudinal Healthy Longevity Survey (CLHLS) that covered 23 provinces in China. Current alcohol use status, duration of alcohol cessation, and alcohol consumption before abstinence were self-reported by participants; cognitive function was evaluated using Mini-mental State Examination (MMSE). Cause-specific hazard models and restricted cubic splines were applied to estimate the effect of alcohol use on cognitive impairment.@*Results@#Among the 15,758 participants, mean (± SD) age was 82.8 years (± 11.9 years), and 7,199 (45.7%) were males. During a mean of 3.9 years of follow-up, 3,404 cases were identified as cognitive impairment. Compared with current drinkers, alcohol cessation of five to nine years [adjusted @*Conclusion@#A longer duration of alcohol cessation was associated with a lower risk of cognitive impairment assessed by MMSE. Alcohol cessation is never late for older adults to prevent cognitive impairment.

Cognitive impairment related to arterial stiffness in cardiovascular disease patients with severe periodontitis / Deterioro cognitivo relacionado a la rigidez arterial en pacientes con enfermedad cardiovascular y periodontitis grave

ABSTRACT Severe periodontal disease (SPD) associated with systemic peripheral inflammation, cognitive impairment (CI) and arterial stiffness (AS) has been recognized. The aim of this study was to investigate whether CI and arterial stiffness (AS) occur in cardiovascular disease (CVD) patients with SPD. A crosssectional case-control study included hospitalized patients with CVD. Demographic characteristics, CVD and atherogenic risk factors were recorded. SPD was diagnosed by clinical and radiographic dental examinations. Dental clinical attachment level (CAL) and CAL % were recorded. A Mini-Mental State Examination test (MMSE) assessed cognition, a MMSE score of < 27 was set as the cut-off point of CI; a score > 27 was considered as no CI. Patients were categorized into: MMSE<27 (cases) and MMSE>27 (controls). AS was evaluated by pulse wave velocity (PWV). Serum VCAM-1 levels were determined in a random sample. Results: This study comprised 91 patients (cases, n=26; 29.6%; controls, n=65, 71.4%); aged 73±8 vs. 73±7 years, respectively (p=0.73), of whom 53.8% and 36.9% respectively, were women; SPD was found to be a risk factor for CI; the presence of SPD increased the risk for MMSE <27 by an average 5.39 times (model 1). PWV was associated with MMSE < 27 in the three models. The risk of having MMSE < 27 increased an average of2.404-fold for each 1-unit increase in PWV SPD and AS had significant and independent associations on the risk for development CI. MMSE negatively correlated with CAL% (r=0.69) and PWV (r=0.70). PWV positively correlated with CAL% (r=0.67). Serum VCAM-1 levels were higher in SPD with lower MMSE scores. In conclusion, SPD increases the risk of development of cognitive decline in CVD patients. PWV was directly associated with the risk of cognitive decline. These findings denote a significant opportunity to improve periodontal health in order to avert CI in CVD patients.

RESUMEN La enfermedad periodontal severa (EPS) podría estar asociada a la rigidez arterial (RA) y al deterioro cognitivo (DC). Se realizó un estudio transversal de casos y controles y se investigó la presencia de RA y DC en pacientes con enfermedad cardiovascular (ECV) y EPS. En pacientes hospitalizados con ECVse registraron las características demográficas y factores de riesgo aterogénicos. El DC se diagnosticó a través del Mini-Mental State Examination (MMSE). Punto de corte: MMSE<27 (casos); puntaje >27 ausencia de DC (controles). La EPS fue diagnosticada clínica y radiográficamente. Se registraron el nivel inserción clínica (NIC) y NIC %. La RA fue evaluada a través de la velocidad de onda de pulso (VOP). VCAM-1 sérico se determinó en una muestra aleatoria. Se incluyeron 91 pacientes (casos,n=26; 29.6%; controles,n=65, 71.4%); edad promedio: 73±8 vs. 73±7 años, respectivamente (p=0.73); % de mujeres: 53.8 vs. 36.9, respectivamente y EPS (n=54) y ausencia de EP (noEP) en 37. MMSE< 27 en 26 pacientes; 23 de ellos, con EPS. La presencia de EPS aumentó el riesgo de MMSE< 27 en 5.39 veces (modelo 1). La VOP se asoció a MMSE< 27 (Modelo 1, 2 y 3). El riesgo de MMSE< 27 incrementó en promedio en 2.40 veces por cada aumento de unidad de VOP. EPS y RA mostraron asociaciones significativas e independientes sobre el riesgo de DC. MMSE se correlacionó negativamente con NIC % (r=0.69) y POV (r=0.70); y POV, positivamente con NIC % (r=0.67). Los niveles séricos de VCAM-1 fueron más elevados en presencia de EPS y puntajes bajos de MMSE. Puede concluirse que en pacientes con ECV y EPS, el aumento en RA incrementaría el riesgo de DC. Estos hallazgos enfatizan la necesidad de promover y mantener la salud bucal para evitar el DC en pacientes con ECV.

Efecto de la hipertensión arterial en la función cognitiva de pacientes de 45 a 65 años. Hospital Luis Vernaza, Guayaquil, Ecuador / Impact of arterial hypertension on the cognitive function of patients between 45 and 65 years. Luis Vernaza Hospital, Guayaquil, Ecuador

Resumen Introducción: El deterioro cognitivo leve es una alteración de la función cognitiva que no afecta de manera negativa a las actividades diarias de la persona. Factores de riesgo modificables como la hipertensión arterial podrían intervenir en el aceleramiento de este proceso y afectar a personas menores de 65 años. Una detección temprana del deterioro cognitivo leve por medio del Montreal Cognitive Assesment (MoCA) en personas con hipertensión arterial ayudaría a idear medidas para su control eficaz. Materiales y métodos: Se diseñó un estudio de tipo observacional transversal. La población se integra con pacientes hipertensos de 45 a 65 años de Guayaquil. De una base de datos de 570 pacientes, se realizó un llamado a sujetos que cumplieran los criterios de inclusión y exclusión, para la evaluación de la función cognitiva por medio del MoCA. Resultados: El 93.3% de los participantes sometidos a la prueba MoCA presentó un puntaje menor de 26. El promedio del puntaje total fue de 18.9 y el 51.6% de los participantes reveló deterioro cognitivo leve. Se obtuvo una correlación negativa del 40% (-0.40) con una p = 0.0015 entre años con hipertensión arterial y el resultado total de la prueba MoCA. Conclusiones: Por medio del MoCA se pudo cuantificar la magnitud del deterioro cognitivo en estos pacientes. Se identificó que la mayoría de los participantes examinados presentaba un puntaje promedio menor del intervalo normal. Las cifras obtenidas de los valores de correlación de Pearson muestran una actividad tendencial y relación de la hipertensión arterial con el deterioro de la función cognitiva.

Abstract Introduction: Mild cognitive impairment is an alteration of cognitive function that does not negatively affect the daily activities of the person. Modifiable risk factors such as hypertension could be involved in the acceleration of this process affecting people under 65 years of age. Early detection of mild cognitive impairment through the Montreal Cognitive Assessment (MoCA) in people with high blood pressure, would help to formulate strategies for its effective control. Materials and methods: A cross-sectional observational study was designed. The population is hypertensive patients between 45 and 65 years old in Guayaquil. From a database of 570 patients, a call was made to patients who met the inclusion and exclusion criteria, for the evaluation of cognitive function through MoCA. Results: 93.3% of the participants who underwent the MoCA test had a score lower than 26. The average of the total score was 18.9, with 51.6% of the participants suffering from mild cognitive impairment. A negative correlation of 40% (-0.40) was obtained with a p = 0.0015 between years with arterial hypertension and the total result of the MoCA test. Conclusions: Through MoCA, the magnitude of cognitive deterioration in these patients could be quantified. It was detected that the majority of the examined participants had a lower average score of the normal range. The figures obtained from the Pearson correlation values show trend activity, relating arterial hypertension and deterioration of cognitive function.

Delirium e qualidade de vida em pacientes críticos: um estudo de coorte prospectivo / Delirium and quality of life in critically ill patients: a prospective cohort study

RESUMO Objetivo: Avaliar a associação entre a incidência de delirium na unidade de terapia intensiva e qualidade de vida 1 mês após a alta hospitalar Métodos: Trata-se de estudo de coorte prospectivo desenvolvido em unidades de terapia intensiva de dois hospitais de média complexidade durante o período de dezembro de 2015 a dezembro de 2016. Delirium foi identificado por meio da escala Confusion Assessment Method for the Intensive Care Unit. No momento da alta hospitalar, foram avaliadas capacidade funcional e cognição por meio do índice de Barthel e da escala de Mini Exame do Estado Mental, respectivamente. Após 30 dias da alta hospitalar do paciente, por meio de contato telefônico, aplicou-se o questionário World Health Organization Quality of Life-Bref. Resultados: Foram incluídos 216 pacientes. Delirium foi identificado em 127 (58,8%) deles. Os pacientes com delirium apresentaram maior dependência funcional (mediana do índice de Barthel 50,0 [21,2 - 70,0] versus 80,0 [60,0 - 95,0]; p < 0,001) e menor cognição (escore do Mini Exame do Estado Mental 12,9 ± 7,5 versus 20,7 ± 9,8; p < 0,001) na alta hospitalar. Com relação à qualidade de vida, avaliada 1 mês após alta hospitalar, não houve diferença, em nenhum dos domínios, entre os pacientes com e sem delirium. Conclusão: Nossos achados sugerem que os pacientes com delirium na unidade de terapia intensiva não apresentam piora da qualidade de vida 1 mês após a alta hospitalar, apesar de apresentarem maior prejuízo cognitivo e incapacidade funcional no momento da alta hospitalar.

Abstract Objective: To evaluate the association between the incidence of delirium in the intensive care unit and quality of life 1 month after hospital discharge. Methods: This was a prospective cohort study conducted in the intensive care units of two medium-complexity hospitals from December 2015 to December 2016. Delirium was identified using the Confusion Assessment Method for the Intensive Care Unit scale. At the time of hospital discharge, functional capacity and cognition were assessed with the Barthel index and the Mini Mental State Examination, respectively. Thirty days after patient discharge, the World Health Organization Quality of Life-BREF questionnaire was administered by telephone. Results: A total of 216 patients were included. Delirium was identified in 127 (58.8%) of them. Patients with delirium exhibited greater functional dependence (median Barthel index 50.0 [21.2 - 70.0] versus 80.0 [60.0 - 95.0]; p < 0.001) and lower cognition (Mini Mental State Examination score 12.9 ± 7.5 versus 20.7 ± 9.8; p < 0.001) at hospital discharge. There was no difference in any of the quality-of-life domains evaluated 1 month after hospital discharge between patients with and without delirium. Conclusion: Our findings suggest that patients with delirium in the intensive care unit do not have worse quality of life 1 month after hospital discharge, despite presenting greater cognitive impairment and functional disability at the time of hospital discharge.

Diagnóstico médico de depresión se asocia a sospecha de deterioro cognitivo en adultos mayores / Association between cognitive impairment and depression in Chilean older adults

Background: Depression has been previously associated with cognitive impairment in high income country populations. However, its association in the Chilean population has not been investigated. Aim: To investigate the association between depression and cognitive impairment. Material and Methods: Data from 1384 Chilean adults aged > 60 years, participating in the National Health Survey 2009-2010 was analyzed. Cognitive impairment was assessed using the Mini Mental Examination score. The medical diagnosis of depression was self-reported. The association between depression and cognitive impairment was assessed using a logistic regression. Results: Depression was positively associated with cognitive impairment. However, the magnitude of the association was higher in men (Odds ratio (OR) = 4.02 [95% confidence intervals (CI): 1.44; 6.61], p < 0.01]) than in women (OR = 2.23 [95%CI: 1.03; 3.43], p = 0.04). Older adults who were diagnosed for the first time with depression after 65 years of age, showed a stronger association with cognitive impairment (OR = 6.65 [95% CI: 2.39; 10.9], p < 0.01) than those diagnosed before 55 years. Conclusions: Our study confirms the association between depression and cognitive impairment. Further research is needed to elucidate the nature and potential mechanisms that link depression with cognitive impairment.

Deterioro cognitivo leve en personas mayores de 85 años / Mild cognitive decline in the elderly older than 85 years

Introducción: Las quejas sobre la función cognitiva han aumentado en la población más envejecida del municipio Habana del Este, provincia La Habana, donde se desconoce la frecuencia y causas de este incremento. Objetivo: Determinar la prevalencia y los factores de riesgo de deterioro cognitivo leve en personas mayores de 85 años o más. Métodos: Se realizó un estudio descriptivo y transversal en personas mayores de un área de salud durante el período 2019-2020. El universo estuvo conformado por 51 personas de 85 años o más. Se tomó una muestra de 47, los cuales cumplieron con los criterios de inclusión y exclusión. Se les aplicó un modelo de recogida de información anónimo, pruebas neuropsicológicas y exámenes complementarios con el propósito de elevar la precisión del diagnóstico. Los datos fueron validados estadísticamente mediante el chi cuadrado, la prueba exacta de Fisher, la regresión de Poisson y estadígrafo de Woolf. Resultados: La prevalencia de deterioro cognitivo leve en personas mayores de 80 años o más fue de 74,5 por ciento, encontrándose significativamente influenciada por el género femenino (OR 6,67; IC 95 por ciento1,09-52,01). Un mayor nivel educacional fue asociado con menor riesgo de deterioro cognitivo leve (OR 10,13; IC 95 por ciento 1,83-63,53). Conclusiones: En la población estudiada, el deterioro cognitivo leve constituye un problema de salud. El mayor nivel educacional mostró su efecto protector, se identificó asociación entre el género femenino y el declinar cognitivo(AU)

Introduction: Complaints about cognitive function have increased in the eldest population from Habana del Este municipality, Havana province, where the frequency and causes of such increase are unknown. Objective: To determine the prevalence and risk factors of mild cognitive impairment in elderly older than 85 years. Methods: A descriptive and cross-sectional study was conducted in the elderly from a health area from 2019 to 2020. Fifty one persons aged over 85 made up the universe. Forty seven subjects who met the inclusion and exclusion criteria made the sample. An anonymous information collection model, neuropsychological tests and complementary examinations were applied to them in order to rise the diagnosis precision. Data were statistically validated using chi square, Fisher's exact test, Poisson regression and Woolf statistician. Results: The prevalence of mild cognitive impairment in persons older than 80 years was 74.5 percent. Women accounted the higher number (OR 6.67, 95 percent CI 1.09-52.01). Higher educational level was associated with lower risk of mild cognitive impairment (OR 10.13, 95 percent CI 1.83-63.53). Conclusions: In the studied population, mild cognitive impairment constitutes a health problem. The higher educational level showed protective effect, an association between female gender and cognitive decline was identified(AU)

Cognitive impairment in chronic migraine: a cross-sectional study in a clinic-based sample / Comprometimento cognitivo na enxaqueca crônica: um estudo transversal em uma amostra clínica

Abstract Cognitive impairment has been described in all phases of a migraine attack and interictally. However, the prevalence and phenotype of such impairment in chronic migraine (CM) have not yet been studied. Objectives: The aim of this study was to evaluate both the prevalence of the objective cognitive deficit in patients with CM and the factors underlying its etiology. Methods: 144 patients with CM and 44 age-matched patients with low-frequency episodic migraine (EM) (a maximum of 4 headache days per month) participated in this study. Neuropsychiatric characteristics were measured with the HADS Hospital Anxiety and Depression Scale. Cognitive function was assessed with the Montreal Cognitive Assessment (MoCA), Digit Symbol Substitution Test (DSST), Rey Auditory Verbal Learning Test (RAVLT), and the Perceived Deficits Questionnaire (PDQ-20). Results: Compared to EM, CM subjects demonstrated higher subjective and objective cognitive impairment across all tests. CM patients had 4 times higher odds of achieving a RAVLT score in the lower quartile range compared to EM (Odds Ratio [OR] 3.8; 95% confidence interval [95%CI] 1.5‒9.6; р=0.005). In the MoCA, CM patients demonstrated the most striking impairment in memory/delayed recall (65.3%), attention (46.5%), abstraction (30.6%), and language (27.1%). Chronic headache and level of education, but not gender, depression or anxiety, were independent predictors of cognitive impairment. Conclusions: Cognitive impairment is prevalent in the CM population during their mildest possible pain and may be caused by a central sensitization. Timely preventive treatment of EM is warranted.

Resumo O comprometimento cognitivo foi descrito em todas as fases de um ataque de enxaqueca, de maneira intermitente. Entretanto, a prevalência e o fenótipo desse comprometimento na enxaqueca crônica (EC) não foram estudados. Objetivos: O objetivo deste estudo foi avaliar a prevalência do déficit cognitivo objetivo em pacientes com EC e fatores subjacentes à sua etiologia. Métodos: 144 pacientes com CM e 44 pacientes pareados por idade com enxaqueca episódica (EE) de baixa frequência (máximo de 4 dias de dor de cabeça por mês) foram incluídos. As características neuropsiquiátricas foram medidas pela Hospital Anxiety and Depression Scale (HADS). A função cognitiva foi avaliada por meio da Montreal Cognitive Assessment (MoCA), o Digit Symbol Substitution Test (DSST), o Rey Auditory Verbal Learning Test (RAVLT) e o Perceived Deficits Questionnaire (PDQ-20). Resultados: Em comparação com a EE, os indivíduos com EC demonstraram um comprometimento cognitivo subjetivo e objetivo maior em todos os testes. Os pacientes com CM tiveram 4 vezes mais chances de alcançar um escore RAVLT na faixa quartil inferior, em comparação com EE (Odds Ratio [OR] 3,8; intervalo de confiança de 95% [IC95%] 1,5‒9,6; p=0,005). No MoCA, os pacientes com EC demonstraram o maior prejuízo na memória/atraso na recordação (65,3%), atenção (46,5%), abstração (30,6%) e linguagem (27,1%). Dor de cabeça crônica e nível de escolaridade, mas não o sexo, depressão ou ansiedade, foram preditores independentes de comprometimento cognitivo. Conclusões: O comprometimento cognitivo é prevalente na população com enxaqueca crônica mesmo durante uma dor muito leve e pode ser causado pela sensibilização central. O tratamento preventivo oportuno da enxaqueca episódica se faz necessário.

Association between cognitive impairment and criteria for frailty syndrome among older adults / Associação entre o comprometimento cognitivo e os critérios para a síndrome de fragilidade em idosos

Abstract The association between cognitive impairment and physical frailty has been studied in older adults. The criteria degree of frailty may be keys to associated cognitive impairment. Objective: To analyze the association between cognitive impairment and the criteria for frailty. Methods: We cross-sectionally examined data from 667 older adults (≥60 years of age) from a study entitled 'Variables associated to cognition in elderly caregivers' involving patients in an urban and rural primary healthcare center. We defined cognitive impairment based on different groups of scores on the Mini Mental State Examination, and defined frailty and prefrailty using the criteria by the Cardiovascular Health Study. We performed multinomial regression models to analyze the association between levels of frailty and cognitive impairment. Results: Similar proportions of women (54.8%) and men (45.2%) participated in the study (mean age: 71 years old). We found cognitive impairment, prefrailty and frailty in 34, 54, and 24% of the participants, respectively. Concomitant cognitive impairment and frailty was found in 13% of them. The chances of cognitive impairment increased up to 330% (Odds Ratio [OR]: 4.3; 95% confidence interval [95%CI] 2.4‒7.7; p<0.001) among frail individuals, and 70% (OR: 1.7; 95%CI 1.0‒2.8; p=0.033) among prefrail individuals compared to robust/non-frail individuals. After controlling for age, education, place of residence and functional dependence, slowness and fatigue criteria were significantly associated with cognitive impairment. Conclusion: Older adults with frailty have a greater likelihood of concomitant cognitive impairment than prefrail and robust older adults. The prevalence of cognitive impairment and frailty is consistent with data reported in literature. The present findings contribute to the investigation of cognitive frailty.

Resumo A associação entre comprometimento cognitivo e fragilidade tem sida estudada em idosos e os critérios de fragilidade e níveis de fragilidade podem também apresentar influência na função cognitiva. Objetivo: Analisar a associação entre comprometimento cognitivo e os critérios de fragilidade em idosos. Métodos: O estudo analisou transversalmente dados de 667 idosos (≥60 anos) do estudo 'Variables associated to cognition in elderly caregivers' conduzido com usuários da atenção primária a saúde de áreas urbanas e rurais. Comprometimento cognitivo foi definido em função dos escores no Miniexame do Estado Mental baseado na escolaridade e a fragilidade e pré-fragilidade foi operacionalizada segundo os critérios do Cardiovascular Health Study. Foram realizados modelos de regressão multinominal para analisar a associação entre níveis de fragilidade e comprometimento cognitivo. Resultados: Proporções semelhantes de mulheres (54,8%) e homens (45,2%) participaram do estudo (média de idade: 71 anos). Comprometimento cognitivo, pré-fragilidade e fragilidade foram encontrados em 34, 54 e 24% dos participantes, respectivamente. Concomitante comprometimento cognitivo e fragilidade foi evidenciado em 13%. As chances de apresentar comprometimento cognitivo aumentaram em 330% (Odds Ratio [OR]: 4.3; intervalo de confiança de 95% [IC95%] 2.4‒7.7; p<0.001) entre indivíduos frágeis e 70% (OR: 1.7; IC95% 1.0‒2.8; p=0.033) entre indivíduos pré-frágeis em comparação com indivíduos robustos/não-frágeis. Após controle da idade, escolaridade, local de residência e dependência funcional, os critérios de lentidão e fadiga foram significativamente associados ao comprometimento cognitivo. Conclusão: Os idosos mais frágeis têm maior probabilidade de apresentar comprometimento cognitivo comparados a adultos idosos pré-frágeis ou robustos. A prevalência de comprometimento cognitivo e fragilidade é consistente com os dados relatados na literatura e fornece suporte para futuras investigações sobre a fragilidade cognitiva.

Prevalence of dementia in patients seen at a private hospital in the Southern Region of Brazil / Prevalência de demência em pacientes atendidos em um hospital privado no sul do Brasil

ABSTRACT Objective To evaluate the epidemiological profile of patients seen at a dementia outpatient clinic. Methods A retrospective study conducted by medical record review searching data on sex, race, age, schooling level, and diagnosis of patients seen from 2008 to 2015. Results A total of 760 patients were studied, with a predominance of female (61.3%; p<0.0001). The mean age was 71.2±14.43 years for women and 66.1±16.61 years for men. The most affected age group was 71 to 80 years, accounting for 29.4% of cases. In relation to race, 96.3% of patients were white. Dementia was diagnosed in 68.8% of patients, and Alzheimer's disease confirmed in 48.9%, vascular dementia in 11.3%, and mixed dementia in 7.8% of cases. The prevalence of dementia was 3% at 70 years and 25% at 85 years. Dementia appeared significantly earlier in males (mean age 68.5±15.63 years). As to sex distribution, it was more frequent in women (59.6%) than in men (40.4%; p<0.0001; OR=2.15). People with higher schooling level (more than 9 years) had a significantly younger age at onset of dementia as compared to those with lower schooling level (1 to 4 years; p=0.0007). Conclusion Most patients seen in the period presented dementia, and Alzheimer was the most prevalent disease. Women were more affected, and men presented young onset of the disease. Individuals with higher schooling level were diagnosed earlier than those with lower level.

RESUMO Objetivo Avaliar o perfil epidemiológico dos pacientes atendidos em um ambulatório de demência. Métodos Estudo retrospectivo realizado pela revisão de prontuários com busca de dados sobre sexo, raça, idade, escolaridade e diagnóstico de pacientes atendidos de 2008 a 2015. Resultados Foram estudados 760 pacientes, com predomínio do sexo feminino (61,3%; p<0,0001). A média de idade foi 71,2±14,43 anos, para as mulheres, e de 66,1±16,61 anos, para os homens. A faixa etária mais acometida foi de 71 a 80 anos, representando 29,4% dos casos. Em relação à etnia, 96,3% dos pacientes eram brancos. O quadro de demência foi diagnosticado em 68,8% dos pacientes, tendo sido a doença de Alzheimer confirmada em 48,9% dos casos, demência vascular em 11,3% e mista em 7,8%. A prevalência de demência foi de 3% aos 70 anos e de 25% aos 85 anos. O quadro demencial apareceu significativamente mais cedo no sexo masculino (média de idade 68,5±15,63 anos). A distribuição entre os sexos mostrou demência mais frequente em mulheres (59,6%) do que em homens (40,4%; p<0,0001; RC=2,15). Pessoas com maior escolaridade (acima de 9 anos) apresentaram idade de aparecimento da demência significativamente menor que aquelas de menor escolaridade (1 a 4 anos; p=0,0007). Conclusão Os pacientes atendidos no período apresentaram demência na maioria dos casos, sendo Alzheimer a doença mais prevalente. Mulheres foram mais acometidas, entretanto homens apresentaram a doença mais precocemente. Indivíduos com maior escolaridade foram diagnosticados mais cedo que aqueles com menor escolaridade.