Longitudinal associations in dementia family caregivers of ambivalent feelings and disruptive behaviors with C-reactive protein, interleukin-6, and D-dimer.

OBJECTIVE: Caregivers' ambivalent feelings toward the care recipient have been found to be associated with depression and anxiety. There is no research linking caregivers' ambivalent feelings and cardiovascular risk. This study was aimed to analyze longitudinally the effect of ambivalence on caregivers' cardiovascular risk, defined by circulating levels of high-sensitivity C-reactive protein, interleukin-6 (IL-6), and D-dimer. METHOD: Participants were 121 dementia family caregivers who were assessed three times during a 2-year period. Sociodemographic and health variables, behavioral and psychological symptoms of dementia (BPSD), ambivalent feelings, and C-reactive protein (CRP), IL-6, and D-dimer values were assessed. Mixed linear models were used to analyze the association between variables, including testing whether ambivalent feelings moderated the links between BPSD and biomarkers. RESULTS: Increases over time in D-dimer were associated with increases in ambivalence, older age, female gender, and body mass index (BMI). Increases over time in CRP were associated with increases in BMI, older age, female gender, and the interaction of BPSD with caregivers' ambivalent feelings. The moderation analysis showed that increased BPSD was significantly associated with increased CRP when caregivers experienced high levels of ambivalence (p = .006). In contrast, BPSD were not significantly associated with CRP when caregivers experienced low levels of ambivalence (p = .73). Increases in IL-6 were associated with female gender and BMI. The tested model explained 42.85%, 33.15%, and 5.36% of longitudinal variance in CRP, D-dimer, and IL-6 levels, respectively. CONCLUSION: The findings suggest that high ambivalent feelings are relevant for understanding cardiovascular vulnerability in dementia caregivers. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The role of hyperarousal for understanding the associations between sleep problems and emotional symptoms in family caregivers of people with dementia. A network analysis approach.

Caregiving for a family member with dementia is a stressful situation that has been associated with symptoms of depression, anxiety, and insomnia. Several models have highlighted the role of hyperarousal for understanding sleep disorders; however, there is little evidence about how insomnia, depression, and anxiety are linked together. Network analysis could help to explore the mechanisms underlying the associations between these disorders. A total of 368 community-dwelling family caregivers of a person with dementia took part in the study. The depression-anxiety-sleep symptoms network was composed of 26 items using the R package qgraph to estimate and visualise the network. The results showed that the strongest symptoms in the network were shakiness, tension, restlessness, nervousness, and restless sleep. Tension was the symptom with the most predictive power, restless sleep was the most important shortcut node in the connection between other symptoms. The central stability coefficient showed adequate indices. The strength of hyperarousal symptoms suggested a prominent role of this variable. Our results invite the hypothesis that sleep problems may trigger symptoms specific to depression via fatigue or energy loss. This study is the first to examine the network structure of the associations between the symptoms of depression, anxiety, and insomnia in a sample of informal caregivers, and to explore the role of hyperarousal in this network.

Ambivalent Feelings and Relationship Quality in Dementia Family Caregivers: Associations with Depressive Symptomatology.

OBJECTIVES: Ambivalent feelings in dementia family caregivers have been found to be related to caregivers´ stress associated with the behavioral and psychological symptoms of dementia (BPSD-related stress), and depressive symptoms. Ambivalent feelings may also affect caregivers´ perceived quality of the relationship with the person living with dementia (PLwD), but this variable has been scarcely studied. This study analyzes the role of ambivalent feelings in the association between caregivers' BPSD-related stress, perceived quality of the relationship with the PLwD, and depressive symptomatology. METHODS: A theoretical model was developed and tested in a sample of 390 family caregivers. RESULTS: The obtained tested model had an excellent fit to the data, explaining 24% of the variance of depressive symptomatology. A significant association was found between caregivers' BPSD-related stress, ambivalent feelings, and depressive symptomatology. Also, an indirect effect in the association between ambivalent feelings and depressive symptomatology was found through the perceived quality of the relationship. CONCLUSIONS: Ambivalent feelings in dementia family caregivers are associated with caregivers' BPSD-related stress, perception of a lower relationship quality, and higher depressive symptomatology. CLINICAL IMPLICATIONS: Targeting caregivers' ambivalent feelings and the quality of the relationship in interventions for dementia family caregivers may decrease their distress.

Longitudinal effects of ambivalent and guilt feelings on dementia family caregivers' depressive symptoms.

BACKGROUND: The world prevalence of people with dementia is increasing. Most of the care received by people with dementia is provided by family caregivers, and this prolonged activity has a significant impact on caregivers' levels of depression. Stressors and frequency of leisure are known predictors of caregivers' depressive levels. The longitudinal impact of caregivers' ambivalent and guilt feelings is unknown. METHODS: Participants were 177 family caregivers of relatives with dementia who were assessed three times during a 2-year period. In addition to demographic variables, psychological symptoms of the dementias, and frequency of leisure activities, caregivers' ambivalent feelings, guilt, and depressive symptoms were measured. The longitudinal association of changes in these variables with changes in caregivers' depressive symptoms over time was assessed using mixed linear models. RESULTS: Changes over time in the assessed variables predicted 48.05% of variance of changes over time in depressive symptoms. Even when variables strongly associated with increased depressive symptoms were controlled (lower caregivers' age and educational level, higher reaction to BPSD, and lower leisure activities), increases in ambivalence and guilt contributed to an increase of 9.22% of the variance of changes depressive symptoms over a 2-year period. The effects of ambivalent feelings on depression are indirect, mediated by guilt feelings. Cessation of caregiving do not seem to alter these findings. CONCLUSIONS: Caregivers' ambivalent and guilt feelings are significant predictors of caregivers' mental health. Caregivers may significantly benefit from early detection of ambivalent and guilt feelings and preventive strategies targeting triggers associated with ambivalent and guilt symptoms.

Translating NIA-AA criteria into usual practice: Report from the ReDeMa Project.

INTRODUCTION: Biomarker-informed criteria were proposed for the diagnosis of Alzheimer's disease (AD) by the National Institute on Aging and the Alzheimer's Association (NIA-AA) in 2011; however, the adequacy of this criteria has not been sufficiently evaluated. METHODS: ReDeMa (Red de Demencias de Madrid) is a regional cohort of patients attending memory and neurology clinics. Core cerebrospinal fluid biomarkers were obtained, NIA-AA diagnostic criteria were considered, and changes in diagnosis and management were evaluated. RESULTS: A total of 233 patients were analyzed (mean age 70 years, 50% women, 73% AD). The diagnostic language was modified significantly, with a majority assumption of NIA-AA definitions (69%). Confidence in diagnosis increased from 70% to 92% (p < 0.0005) and management was changed in 71% of patient/caregivers. The influence of neurologist's age or expertise on study results was minimal. DISCUSSION: The NIA-AA criteria are adequate and utile for usual practice in memory and neurology clinics, improving diagnostic confidence and significantly modifying patient management. HIGHLIGHTS: Alzheimer's disease (AD) cerebrospinal fluid (CSF) biomarkers increase diagnostic certainty regardless of the neurologist.AD CSF biomarkers lead to changes in disease management .Biomarker-enriched, 2011 NIA-AA diagnostic criteria are adequate for usual practice.

Network Analysis of Comorbid Depressive and Anxious Symptoms in Family Caregivers of People with Dementia.

OBJECTIVES: The aim of this study is an in-depth approach to depressive-anxious comorbidity in caregivers according to stress reactivity to disruptive behaviors using network analysis. METHODS: The sample was composed of 317 primary family caregivers recruited through Day Care Centers and Neurology Services. The sample was split into low and high stress reactivity groups, based on their reports of reaction to disruptive behaviors. Depressive and anxious symptoms, daily hours dedicated to caregiving, time of caring, frequency of disruptive behaviors, co-residence, and kinship were also cross-sectionally measured. RESULTS: The sample had a mean age of 62.38 years (SD = 12.97) and 68.5% were women. Regarding the network analysis, while the low reactivity group presents a sparse network, with no connection between anxious and depressive symptoms, the high reactivity group shows a high connection of intra and intercategory symptoms, with apathy, sadness, feeling depressed, and tension being the bridge symptoms between disorders. CONCLUSIONS: Caregivers' stress reaction to disruptive behaviors might be a key factor for understanding comorbidity between depressive and anxious symptoms. CLINICAL IMPLICATIONS: Tension, apathy, sadness, and feeling depressed should be clinical targets in the interventions, as they act as bridge symptoms between anxious and depressive symptomatology.

An integrated model of psychosocial correlates of insomnia severity in family caregivers of people with dementia.

OBJECTIVES: Research has shown the relevance of stress and coping factors in explaining caregivers' insomnia symptoms. However, few attempts have been made to empirically test an integrative model for insomnia severity in family caregivers of people with dementia. The aim of this study was to test such a model, in which insomnia severity is proposed to be influenced by predisposing factors, precipitated by stressors, and perpetuated by behaviors to cope with these stressors. METHODS: 311 family caregivers of people with dementia were assessed for variables categorized as predisposing (e.g. female gender), precipitating (e.g. care-recipient's behavioral and psychological symptoms of dementia [BPSD]), and perpetuating factors (e.g. sleep aids). A theoretical model was developed and then statistically tested using structural equation modelling, analyzing the direct and indirect effects of the assessed variables on caregivers' insomnia severity. RESULTS: Distress, sleep aids, and experiential avoidance showed a direct association with insomnia severity. Female gender, younger age, cognitive fusion, leisure activities, dysfunctional thoughts, frequency and distress caused by care-recipient's BPSD showed indirect associations with insomnia severity. The model explained 22% of the variance of caregivers' insomnia severity. CONCLUSION: The results provide additional empirical support for the importance of predisposing, precipitating and perpetuating factors associated with caregivers' insomnia severity. The integrative model we propose may also be useful for developing interventions targeting insomnia symptoms in family dementia caregivers.

Prevalence of treated patients with Alzheimer's disease: current trends and COVID-19 impact.

BACKGROUND: There are few updated studies on the prevalence and management of Alzheimer's disease (AD), which could be underdiagnosed or undertreated. The COVID-19 pandemic may have worsened the deficiencies in the diagnosis and treatment of these patients. Electronic medical records (EMR) offer an opportunity to assess the impact and management of medical processes and contingencies in the population. OBJECTIVE: To estimate AD prevalence in Spain over a 6-year period, based on treated patients, according to usual clinical practice. Additionally, to describe the management of AD-treated patients and the evolution of that treatment during the 2020 COVID-19 pandemic. METHODS: Retrospective study using the Spanish IQVIA EMR database. Patients treated with donepezil, galantamine, rivastigmine, and/or memantine were included in the study. Annual AD prevalence (2015-2020) was estimated and extrapolated to the national population level. Most frequent treatments and involved specialties were described. To assess the effect of COVID-19, the incidence of new AD cases in 2020 was calculated and compared with newly diagnosed cases in 2019. RESULTS: Crude AD prevalence (2015-2020) was estimated at 760.5 per 100,000 inhabitants, and age-standardized prevalence (2020) was 664.6 (male 595.7, female 711.0). Monotherapy was the most frequent way to treat AD (86.2%), in comparison with dual therapy (13.8%); rivastigmine was the most prescribed treatment (37.3%), followed by memantine (36.4%) and donepezil (33.0%). Rivastigmine was also the most utilized medication in newly treated patients (46.7%), followed by donepezil (29.8%), although donepezil persistence was longer (22.5 vs. 20.6 months). Overall, donepezil 10 mg, rivastigmine 9.5 mg, and memantine 20 mg were the most prescribed presentations. The incidence rate of AD decreased from 148.1/100,000 (95% confidence interval [CI] 147.0-149.2) in 2019 to 118.4/100,000 (95% CI 117.5-119.4) in 2020. CONCLUSIONS: The obtained prevalence of AD-treated patients was consistent with previous face-to-face studies. In contrast with previous studies, rivastigmine, rather than donepezil, was the most frequent treatment. A decrease in the incidence of AD-treated patients was observed during 2020 in comparison with 2019, presumably due to the significant impact of the COVID-19 pandemic on both diagnosis and treatment. EMR databases emerge as valuable tools to monitor in real time the incidence and management of medical conditions in the population, as well as to assess the health impact of global contingencies and interventions.

Associations Between Dysfunctional Thoughts, Leisure Activities, and IL-6 in Caregivers of Family Members With Dementia.

OBJECTIVE: Dementia caregiving is associated with negative physical health consequences, including inflammation processes. The objective of this study was to analyze the associations between dysfunctional thoughts, frequency of leisure activities, and interleukin 6 (IL-6) in a sample of dementia family caregivers. METHODS: One hundred forty dementia caregivers participated in this cross-sectional study. The relationships among caregivers' dysfunctional thoughts, leisure activities, and IL-6 were adjusted for demographic characteristics, stressors, and physical and mental health indicators in a linear regression analysis. RESULTS: Higher levels of dysfunctional thoughts ( t = -2.02, p = .045) were significantly associated with lower frequency of leisure activities. In turn, lower frequency of leisure activities was significantly associated with higher levels of IL-6 ( t = -2.03, p = .045). Dysfunctional thoughts were no longer significantly associated with IL-6 levels when both dysfunctional thoughts and leisure activities were included in the same model ( t = 1.78, p = .076). A significant indirect effect was found for the association between higher levels of dysfunctional thoughts and higher levels of IL-6 (standardized indirect effect = 0.036, bootstrap standard error = 0.026, 95% confidence interval = 0.0001-0.1000) through its association with fewer leisure activities. CONCLUSIONS: Our findings suggest that the direct effect of caregivers' dysfunctional thoughts on IL-6 may be mediated by the impact on caregivers' frequency of leisure activities. Results suggest that training caregivers in reducing dysfunctional thoughts to thereby increase leisure activities may be useful in reducing inflammation.

Cross-cultural analysis of the role of ambivalent feelings for understanding caregivers' depressive symptoms.

OBJECTIVES: Behavioral and psychological symptoms of dementia (BPSD) are considered to cause ambivalent feelings in caregivers that may contribute to understanding their depressive symptoms. Transnational research is needed in order to increase our knowledge about the cross-cultural equivalence of theoretical models to understand caregivers' mental health. The aim of this study was to cross-culturally analyze the association between BPSD, ambivalent feelings and depressive symptoms in two samples of family caregivers of people with dementia from Spain and the UK. METHODS: Participants in this study were 432 caregivers who completed measures of BPSD, ambivalent feelings and depressive symptoms. The association between the assessed variables was tested through path-analysis, with differences between countries tested through multigroup analysis. RESULTS: The results suggest that the influence of BPSD on caregivers' depressive symptoms is indirect, through ambivalent feelings. The observed associations were equivalent between countries and explained a significant percentage of the variance of depressive symptoms. CONCLUSION: The findings of this study provide, for the first time, evidence of equivalent cross-cultural paths analyzing the role of ambivalent feelings for understanding caregivers' depressive symptoms. The practical implications of these results are discussed.

Cognitive fusion and distress in family caregivers: the role of satisfaction with personal values.

Objectives: cognitive fusion (the tendency towards behavior that is overly regulated and influenced by cognition) and dissatisfaction with personal values are central processes of psychological inflexibility and are related to distress. Being cognitively fused may interfere with achieving satisfaction from personal values. This study analyzed the role of satisfaction with the value of caregiving and other personal values (e.g. personal growth) in the relationship between cognitive fusion and caregivers' distress.Method: a total of 287 dementia family caregivers participated in this quantitative study carried out in Madrid, Spain, from January 2016 to February 2020. We measured sociodemographic and stressor variables, cognitive fusion, caregivers' satisfaction with values and depressive and anxiety symptoms. The indirect effect of cognitive fusion on distress through caregivers' satisfaction with caregiving value and with other personal values was tested. Four hierarchical regression models were analyzed: the role of satisfaction with the caregiving value in the association between cognitive fusion and depressive (Model 1a) and anxiety (Model 1b) symptoms; and the role of satisfaction with other personal values in the association between cognitive fusion and depressive (Model 2a) and anxiety (Model 2b) symptoms.Results: the results showed an indirect effect of cognitive fusion on both depressive and anxiety symptoms only through satisfaction with other personal values. Those reporting higher cognitive fusion reported lower satisfaction with other personal values, and this association was related to higher scores in depressive and anxiety symptoms (Models 2a and 2b).Conclusion: cognitive fusion could be a variable that interferes in obtaining satisfaction from personal values, something that increases caregivers' distress.

Feasibility, safety, and tolerability of two modalities of plasma exchange with albumin replacement to treat elderly patients with Alzheimer's disease in the AMBAR study.

BACKGROUND: In the Alzheimer Management by Albumin Replacement (AMBAR) study, mild-to-moderate Alzheimer's disease (AD) patients were treated with a plasma exchange (PE) program. Feasibility and safety of PE in this specific population are poorly understood and were analyzed in detail in this study. METHODS: Qualified patients were treated with 6 weeks of weekly conventional therapeutic plasma exchange (TPE) with albumin replacement followed by monthly low-volume plasma exchange (LVPE) for 12 months. The patients were divided into four groups: placebo (sham PE treatment), low-albumin (20 g), low-albumin + intravenous immunoglobulin (IVIG) (10 g), and high-albumin (40 g) + IVIG (20 g). Adverse events (AEs) were recorded and analyzed for all PE treatment groups and PE modalities. RESULTS: PE procedure-related AEs were more common in the active treatment groups (16.9% out of 1283 TPE and 12.5% out of 2203 LVPE were associated with at least one AE, a similar rate than in other PE indications) than in the placebo group (0.7% out of 1223 sham PE). Percentage of procedures with at least one AEs was higher with central venous access compared to peripheral venous access in all three active treatment groups (20.1% vs 13.1%, respectively). CONCLUSION: The TPE and LVPE procedures used in the AMBAR study on mild-to-moderate AD population were as safe and feasible as in other therapeutic applications of PE or routine plasmapheresis.

Telemedicine for neurological diseases: A systematic review and meta-analysis.

BACKGROUND AND PURPOSE: The aim was to systematically review the effectiveness and safety of telemedicine combined with usual care (in-person visits) compared to usual care for the therapeutic management and follow-up assessment of neurological diseases. METHODS: The electronic databases MEDLINE, Embase, Web of Science and Cochrane Central Register of Controlled Trials were searched (June 2021). Randomized controlled trials (RCTs) on patients of any age with neurological diseases were considered. Two reviewers screened and abstracted data in duplicate and independently and assessed risk of bias using the Cochrane risk-of-bias tool for randomized trials (RoB 2). When possible, pooled effect estimates were calculated. RESULTS: Of a total of 3018 records initially retrieved, 25 RCTs (n = 2335) were included: 11 (n = 804) on stroke, four (n = 520) on Parkinson's disease, three (n = 110) on multiple sclerosis, two (n = 320) on epilepsy, one (n = 63) on dementia, one (n = 23) on spina bifida, one (n = 40) on migraine, one (n = 22) on cerebral palsy and one (n = 433) on brain damage. Types of telemedicine assessed were online visits (11 studies), tele-rehabilitation (seven studies), telephone calls (three), smartphone apps (two) and online computer software (two). The evidence was quite limited except for stroke. Compared to usual care alone, telemedicine plus usual care was found to improve depressive symptoms, functional status, motor function, executive function, generic quality of life, healthcare utilization and healthy lifestyle in patients in post-stroke follow-up. CONCLUSIONS: Well-designed and executed RCTs are needed to confirm our findings on stroke and to have more scientific evidence available for the other neurological diseases.

Intelligent digital tools for screening of brain connectivity and dementia risk estimation in people affected by mild cognitive impairment: the AI-Mind clinical study protocol.

More than 10 million Europeans show signs of mild cognitive impairment (MCI), a transitional stage between normal brain aging and dementia stage memory disorder. The path MCI takes can be divergent; while some maintain stability or even revert to cognitive norms, alarmingly, up to half of the cases progress to dementia within 5 years. Current diagnostic practice lacks the necessary screening tools to identify those at risk of progression. The European patient experience often involves a long journey from the initial signs of MCI to the eventual diagnosis of dementia. The trajectory is far from ideal. Here, we introduce the AI-Mind project, a pioneering initiative with an innovative approach to early risk assessment through the implementation of advanced artificial intelligence (AI) on multimodal data. The cutting-edge AI-based tools developed in the project aim not only to accelerate the diagnostic process but also to deliver highly accurate predictions regarding an individual's risk of developing dementia when prevention and intervention may still be possible. AI-Mind is a European Research and Innovation Action (RIA H2020-SC1-BHC-06-2020, No. 964220) financed between 2021 and 2026. First, the AI-Mind Connector identifies dysfunctional brain networks based on high-density magneto- and electroencephalography (M/EEG) recordings. Second, the AI-Mind Predictor predicts dementia risk using data from the Connector, enriched with computerized cognitive tests, genetic and protein biomarkers, as well as sociodemographic and clinical variables. AI-Mind is integrated within a network of major European initiatives, including The Virtual Brain, The Virtual Epileptic Patient, and EBRAINS AISBL service for sensitive data, HealthDataCloud, where big patient data are generated for advancing digital and virtual twin technology development. AI-Mind's innovation lies not only in its early prediction of dementia risk, but it also enables a virtual laboratory scenario for hypothesis-driven personalized intervention research. This article introduces the background of the AI-Mind project and its clinical study protocol, setting the stage for future scientific contributions.

Medical conditions and depressive symptoms: A study of kinship profiles in dementia caregivers.

OBJECTIVE: To analyze the association between diverse medical conditions and depressive symptoms in different profiles of dementia caregivers based on sex and kinship (wives, husbands, daughters, and sons). METHODS: Individual interviews were conducted with 338 dementia family caregivers. Depressive symptoms were measured with the Spanish version of the Center for Epidemiologic Studies-Depression Scale. Medical conditions encompassed the following physical diseases: high cholesterol, osteoarthritis, hypertension, diabetes, cancer, and cardiovascular, brain, kidney, liver, and stomach diseases.Logistic regression analyses were carried out to identify determinants associated to thepresenceof depressive symptoms. RESULTS: High cholesterol was the most frequent disease among caregivers.Significant differences among groups were found in depressive symptoms: between wives (50.60%) and husbands (28.40%),(p = 0.033), and between daughters (57.00%) and husbands (p = 0.001). Half of the sonsreported thepresenceof depressive symptoms. In daughters, depressive symptomatology was significantly more likely whether they presented a worse reaction to disruptive behaviors, a poor assessment of global deterioration of care recipient, and less perceived health status. Furthermore, daughters were 1.94 times more likely to experience depressive symptoms if they presented medical conditions (p = 0.017). CONCLUSIONS: Daughter caregivers that have depressive and physical diseases may be an especially vulnerable subgroup of caregivers that may not be the ideal population to provide care. Access to high-quality, evidence-based therapies focused on improving caregivers' physical health could have a positiveeffecton thepresenceof depressive symptoms, particularly in the case of daughter caregivers.

Stress, Insomnia, and Leisure in Dementia Family Caregivers. Correlates with Distress during the COVID-19 Pandemic.

The COVID-19 pandemic added a new stress source for caregivers. Many aspects influence the potential depressive or anxiety symptomatology in caregivers. This study explored the association among COVID-19 related stressors, insomnia, leisure, and caregivers' depression and anxiety. 101 family caregivers of people with dementia were asked about COVID-19 related stressors, insomnia, leisure, depression and anxiety symptoms. Four regression models with caregivers' depression and anxiety symptoms as dependent variables were tested. Four potential mediation models were investigated. Two of them had insomnia as the independent variable and leisure as a mediator, and the other two had leisure as the independent variable and insomnia as a mediator. Regression models accounted for 48% and 40.6% of the variance in depressive and anxiety symptoms, respectively. The four mediator models were statistically significant. Findings suggest two potential mechanisms affecting caregivers' distress during the pandemic. Insomnia and leisure significantly contributed to explain caregivers' anxiety and depressive symptoms, even after controlling for COVID-19 related stressors. Provision of resources to increase the chances of caregivers engaging in leisure activities, alongside a reduction of barriers potentially limiting good sleep, may contribute significantly to improving the depression and anxiety symptoms of family caregivers.

Clinical Trajectories of Neuropsychiatric Symptoms in Mild-Moderate to Advanced Dementia.

BACKGROUND: There is high prevalence of neuropsychiatric symptoms (NPS) among dementia patients. NPS are correlated with dementia progression, functional decline, early institutionalization, and death. There is scarce evidence on the progression of NPS in the latest stages of dementia. OBJECTIVE: To describe the prevalence of NPS in mild-moderate to severe dementia and to reveal the progression of each NPS over time. METHODS: We studied 317 patients (77.3% female, average age: 81.5 years) with a DSM-IV-TR diagnosis of dementia. This is a cross-sectional, and a prospective longitudinal study with 78-month follow-up. We assessed cognitive status (Mini-Mental State Examination and Severe Mini-Mental State Examination), dementia severity (Global Deterioration Scale and Clinical Dementia Rating), and psychopathological measures (Neuropsychiatric Inventory, APADEM-Nursing Home, Apathy Inventory, Cornell Scale for Depression in Dementia, and Cohen-Mansfield Agitation Inventory). RESULTS: Overall prevalence of NPS was 94.6%, being apathy the most prevalent (66.7%) and the one whose severity increased the most with progression of dementia. Agitation/aggression, irritability, and sleeping and eating disorders also increased over time. Delusions and depressive symptoms decreased in severity with disease progression. In severe dementia, female displayed more depressive symptoms and eating disorders, while male displayed more agitation/aggression and sleep disturbances. CONCLUSION: NPS in dementia follow a heterogeneous course. Apathy is the most prevalent NPS and the one that worsens most significantly over time. The course of some NPS differs between sexes. Further research is required to understand the evolution of NPS at advanced stages of dementia.

Neuropsychological, neuropsychiatric, and quality-of-life assessments in Alzheimer's disease patients treated with plasma exchange with albumin replacement from the randomized AMBAR study.

INTRODUCTION: We report the effects of plasma exchange (PE) with albumin replacement on neuropsychological, neuropsychiatric, and quality-of-life (QoL) outcomes in mild-to-moderate Alzheimer's disease (AD) patients in a phase 2b/3 trial (Alzheimer's Management by Albumin Replacement [AMBAR] study). METHODS: Three hundred forty-seven patients were randomized into placebo (sham-PE) and three PE-treatment arms with low/high doses of albumin, with/without intravenous immunoglobulin (IVIG). Specific test measurements were performed at baseline; month 2 (weekly conventional PE); months 6, 9, and 12 (monthly low-volume PE [LVPE]); and month 14. RESULTS: The PE-treated mild-AD cohort improved their language fluency and processing speed versus placebo at month 14 (effect sizes: >100%; P-values: .03 to .001). The moderate-AD cohort significantly improved short-term verbal memory (effect sizes: 94% to >100%; P-values: .02 to .003). The progression of the neuropsychiatric symptoms of PE-treated was similar to placebo. Mild-AD patients showed improved QoL (P-values: .04 to .008). DISCUSSION: PE-treated AD patients showed improvement in memory, language abilities, processing speed, and QoL-AD. No worsening of their psychoaffective status was observed.

Associations between pleasant events, activity restriction, stressors, and blood pressure in caregivers of persons with dementia.

OBJECTIVES: Caring for a relative with dementia is associated with adverse consequences for cardiovascular health. Cognitive and behavioral factors, such as high perceived activity restriction and low frequency of pleasant events have been found to be associated with higher levels of blood pressure, but the role these variables play in the stress and coping process remains understudied. The objective of this study is to analyze the associations between behavioral and psychological symptoms of dementia, activity restriction, frequency of pleasant events, and mean arterial pressure. DESIGN: Face-to-face interviews and cross-sectional analyses. SETTING: Social services, healthcare centers, and adult day services of Comunidad de Madrid, Spain. PARTICIPANTS: One hundred and two family caregivers of a spouse or parent with dementia. MEASUREMENTS: Apart from various sociodemographic and health-related variables, behavioral and psychological symptoms of dementia, activity restriction, and frequency of leisure activities were assessed. In addition, measurement of blood pressure levels was conducted through an electronic sphygmomanometer. RESULTS: The obtained model suggests that there is a significant indirect association between behavioral and psychological symptoms of dementia and mean arterial pressure through activity restriction and frequency of pleasant events. CONCLUSIONS: The findings of this study provide preliminary support for a potential indirect effect between behavioral and psychological symptoms of dementia and blood pressure, through the effects of behavioral and psychological symptoms of dementia on the caregivers' levels of activity restriction and frequency of pleasant activities. Our manuscript provides additional support for the pleasant events and activity restriction model (Mausbach et al., 2011; Chattillion et al., 2013), by highlighting the importance of considering caregiving stressors as a source of caregivers' activity restriction in the theoretical framework of the model.