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1.
Neurobiol Dis ; 193: 106459, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38423192

RESUMO

BACKGROUND AND PURPOSE: Blood-based biomarkers are a non-invasive solution to predict the risk of conversion of mild cognitive impairment (MCI) to dementia. The utility of free plasma amyloid peptides (not bound to plasma proteins and/or cells) as an early indicator of conversion to dementia is still debated, as the results of studies have been contradictory. In this context, we investigated whether plasma levels of the free amyloid peptides Aß1-42 and Aß1-40 and the free plasma Aß1-42/Aß1-40 ratio are associated with the conversion of MCI to dementia, in particular AD, over three years of follow-up in a subgroup of the BALTAZAR cohort. We also compared their predictive value to that of total plasma Aß1-42 and Aß1-40 levels and the total plasma Aß1-42/Aß1-40 ratio. METHODS: The plasma Aß1-42 and Aß1-40 peptide assay was performed using the INNO-BIA kit (Fujirebio Europe). Free amyloid levels (defined by the amyloid fraction directly accessible to antibodies of the assay) were obtained with the undiluted plasma, whereas total amyloid levels were obtained after the dilution of plasma (1/3) with a denaturing buffer. Free and total Aß1-42 and Aß1-40 levels were measured at inclusion for a subgroup of participants (N = 106) with mild cognitive impairment (MCI) from the BALTAZAR study (a large-scale longitudinal multicenter cohort with a three-year follow-up). Associations between conversion and the free/total plasma Aß1-42 and Aß1-40 levels and Aß1-42/Aß1-40 ratio were analyzed using logistic and Cox Proportional Hazards models. Demographic, clinical, cognitive (MMSE, ADL and IADL), APOE, and MRI characteristics (relative hippocampal volume) were compared using non-parametric (Mann-Whitney) or parametric (Student) tests for quantitative variables and Chi-square or Fisher exact tests for qualitative variables. RESULTS: The risk of conversion to dementia was lower for patients in the highest quartile of free plasma Aß1-42/Aß1-40 (≥ 25.8%) than those in the three lower quartiles: hazard ratio = 0.36 (95% confidence interval [0.15-0.87]), after adjustment for age, sex, education, and APOE ε4 (p-value = 0.022). This was comparable to the risk of conversion in the highest quartile of total plasma Aß1-42/Aß1-40: hazard ratio = 0.37 (95% confidence interval [0.16-0.89], p-value = 0.027). However, while patients in the highest quartile of total plasma Aß1-42/Aß1-40 showed higher MMSE scores and a higher hippocampal volume than patients in the three lowest quartiles of total plasma Aß1-42/Aß1-40, as well as normal CSF biomarker levels, the patients in the highest quartile of free plasma Aß1-42/Aß1-40 did not show any significant differences in MMSE scores, hippocampal volume, or CSF biomarker levels relative to the three lowest quartiles of free plasma Aß1-42/Aß1-40. CONCLUSION: The free plasma Aß1-42/Aß1-40 ratio is associated with a risk of conversion from MCI to dementia within three years, with performance comparable to that of the total plasma Aß1-42/Aß1-40 ratio. Threshold levels of the free and total plasma Aß1-42/Aß1-40 ratio could be determined, with a 60% lower risk of conversion for patients above the threshold than those below.


Assuntos
Doença de Alzheimer , Disfunção Cognitiva , Humanos , Peptídeos beta-Amiloides/metabolismo , Progressão da Doença , Disfunção Cognitiva/diagnóstico , Biomarcadores , Proteínas Amiloidogênicas , Fragmentos de Peptídeos , Proteínas tau
2.
Rev Neurol (Paris) ; 180(1-2): 53-64, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38123372

RESUMO

Orthostatic hypotension is defined as a drop in systolic blood pressure of at least 20mmHg or a drop in diastolic blood pressure of at least 10mmHg within 3minutes of standing. It is a common disorder, especially in high-risk populations such as elderly subjects and patients with neurological diseases, and is associated with markedly increased morbidity and mortality. Its management can be challenging, particularly in cases where supine hypertension is associated with severe orthostatic hypotension. Education of the patient, non-pharmacological measures, and drug adaptation are the cornerstones of treatment. Pharmacological treatment should be individualized according to the severity, underlying cause, 24-hour blood pressure profile, and associated coexisting conditions. First-line therapies are midodrine and fludrocortisone, which may need to be combined for optimal care of severe cases.


Assuntos
Hipertensão , Hipotensão Ortostática , Midodrina , Doenças do Sistema Nervoso , Humanos , Idoso , Hipotensão Ortostática/diagnóstico , Hipotensão Ortostática/epidemiologia , Hipotensão Ortostática/etiologia , Midodrina/uso terapêutico , Hipertensão/complicações , Hipertensão/tratamento farmacológico , Pressão Sanguínea , Doenças do Sistema Nervoso/complicações
3.
Rev Neurol (Paris) ; 2024 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-38866655

RESUMO

BACKGROUND: The association between the pattern of cortical thickness (CT) and executive dysfunction (ED) in mild cognitive impairment (MCI) and subjective cognitive complaints (SCC) is still poorly understood. We aimed to investigate the association between CT and ED in a large French cohort (MEMENTO) of 2323 participants with MCI or SCC. METHODS: All participants with available CT and executive function data (verbal fluency and Trail Making Test [TMT]) were selected (n=1924). Linear regressions were performed to determine relationships between executive performance and the brain parenchymal fraction (BPF) and CT using FreeSurfer. RESULTS: The global executive function score was related to the BPF (sß: 0.091, P<0.001) and CT in the right supramarginal (sß: 0.060, P=0.041) and right isthmus cingulate (sß: 0.062, P=0.011) regions. Literal verbal fluency was related to the BPF (sß: 0.125, P<0.001) and CT in the left parsorbitalis region (sß: 0.045, P=0.045). Semantic verbal fluency was related to the BPF (sß: 0.101, P<0.001) and CT in the right supramarginal region (sß: 0.061, P=0.042). The time difference between the TMT parts B and A was related to the BPF (sß: 0.048, P=0.045) and CT in the right precuneus (sß: 0.073, P=0.019) and right isthmus cingulate region (sß: 0.054, P=0.032). CONCLUSIONS: In a large clinically based cohort of participants presenting with either MCI or SCC (a potential early stage of Alzheimer's disease [AD]), ED was related to the BPF and CT in the left pars orbitalis, right precuneus, right supramarginal, and right isthmus cingulate regions. This pattern of lesions adds knowledge to the conventional anatomy of ED and could contribute to the early diagnosis of AD.

4.
Eur J Neurol ; 25(5): 775-781, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29442416

RESUMO

BACKGROUND AND PURPOSE: Magnetic resonance imaging is part of the diagnostic criteria for Alzheimer's disease (AD) through the evaluation of hippocampal atrophy. The objective of this study was to evaluate which sequence of T1-weighted (T1WI) and T2-weighted (T2WI) imaging allowed the best visual evaluation of hippocampal atrophy. METHODS: Visual qualitative ratings of the hippocampus of 100 patients with mild cognitive impairment (MCI) and 50 patients with AD were made independently by four operators according to the medial temporal lobe atrophy score based either on T1WI or T2WI. These two evaluations were compared in terms of interobserver reproducibility, concordance with a quantitative volumetric measure, discrimination power between AD and MCI groups, and correlation with several neuropsychological tests. RESULTS: The medial temporal lobe atrophy score evaluated on either T1WI or T2WI exhibited similar interobserver variability and accordance with quantitative volumetric evaluation. However, the visual evaluation on T2WI seemed to provide better discrimination power between AD and MCI groups for both left (T1WI, P = 0.0001; T2WI, P = 7.072 × 10-5 ) and right (T1WI, P = 0.008; T2WI, P = 0.001) hippocampus, and a higher overall correlation with neuropsychological tests. CONCLUSIONS: The present study suggests that T2WI provides a more adequate visual rating of hippocampal atrophy.


Assuntos
Doença de Alzheimer/diagnóstico por imagem , Atrofia/diagnóstico por imagem , Disfunção Cognitiva/diagnóstico por imagem , Hipocampo/diagnóstico por imagem , Imageamento por Ressonância Magnética/métodos , Idoso , Idoso de 80 Anos ou mais , Doença de Alzheimer/patologia , Doença de Alzheimer/psicologia , Atrofia/patologia , Disfunção Cognitiva/patologia , Disfunção Cognitiva/psicologia , Feminino , Hipocampo/patologia , Humanos , Estudos Longitudinais , Masculino , Testes Neuropsicológicos , Reprodutibilidade dos Testes
5.
Mol Psychiatry ; 21(1): 108-17, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25778476

RESUMO

APOE ɛ4, the most significant genetic risk factor for Alzheimer disease (AD), may mask effects of other loci. We re-analyzed genome-wide association study (GWAS) data from the International Genomics of Alzheimer's Project (IGAP) Consortium in APOE ɛ4+ (10 352 cases and 9207 controls) and APOE ɛ4- (7184 cases and 26 968 controls) subgroups as well as in the total sample testing for interaction between a single-nucleotide polymorphism (SNP) and APOE ɛ4 status. Suggestive associations (P<1 × 10(-4)) in stage 1 were evaluated in an independent sample (stage 2) containing 4203 subjects (APOE ɛ4+: 1250 cases and 536 controls; APOE ɛ4-: 718 cases and 1699 controls). Among APOE ɛ4- subjects, novel genome-wide significant (GWS) association was observed with 17 SNPs (all between KANSL1 and LRRC37A on chromosome 17 near MAPT) in a meta-analysis of the stage 1 and stage 2 data sets (best SNP, rs2732703, P=5·8 × 10(-9)). Conditional analysis revealed that rs2732703 accounted for association signals in the entire 100-kilobase region that includes MAPT. Except for previously identified AD loci showing stronger association in APOE ɛ4+ subjects (CR1 and CLU) or APOE ɛ4- subjects (MS4A6A/MS4A4A/MS4A6E), no other SNPs were significantly associated with AD in a specific APOE genotype subgroup. In addition, the finding in the stage 1 sample that AD risk is significantly influenced by the interaction of APOE with rs1595014 in TMEM106B (P=1·6 × 10(-7)) is noteworthy, because TMEM106B variants have previously been associated with risk of frontotemporal dementia. Expression quantitative trait locus analysis revealed that rs113986870, one of the GWS SNPs near rs2732703, is significantly associated with four KANSL1 probes that target transcription of the first translated exon and an untranslated exon in hippocampus (P ⩽ 1.3 × 10(-8)), frontal cortex (P ⩽ 1.3 × 10(-9)) and temporal cortex (P⩽1.2 × 10(-11)). Rs113986870 is also strongly associated with a MAPT probe that targets transcription of alternatively spliced exon 3 in frontal cortex (P=9.2 × 10(-6)) and temporal cortex (P=2.6 × 10(-6)). Our APOE-stratified GWAS is the first to show GWS association for AD with SNPs in the chromosome 17q21.31 region. Replication of this finding in independent samples is needed to verify that SNPs in this region have significantly stronger effects on AD risk in persons lacking APOE ɛ4 compared with persons carrying this allele, and if this is found to hold, further examination of this region and studies aimed at deciphering the mechanism(s) are warranted.


Assuntos
Doença de Alzheimer/genética , Polimorfismo de Nucleotídeo Único , Apolipoproteína E4/genética , Cromossomos Humanos Par 17 , Estudo de Associação Genômica Ampla , Humanos , Proteínas tau/genética
6.
Acta Psychiatr Scand ; 134(2): 150-60, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27238642

RESUMO

OBJECTIVE: It remains debated whether anemia is associated with depression, independently of physical health factors. We report a large-scale cross-sectional study examining this association in adults free of chronic disease and medication from the general population. METHOD: Hemoglobin levels were measured among 44 173 healthy participants [63% men; mean [standard deviation] age = 38.4 (11.1) years] from the 'Investigations Préventives et Cliniques' (IPC) cohort study. Depression was measured with the Questionnaire of Depression 2nd version, Abridged. Logistic regression analyses were performed to examine the association between anemia and depression, while adjusting for a wide range of sociodemographic characteristics and health-related factors (i.e., sex, age, living status, education level, occupational status, alcohol intake, smoking status, physical activity, and body mass index). RESULTS: Depressed participants were significantly more likely to have anemia compared to non-depressed participants, even after adjustment for sociodemographic and health-related variables [odds ratio = 1.36; 95% confidence interval = (1.18; 1.57)]. Anemia prevalence increased with depression severity, suggesting a dose-response relationship (P for trend <0.001). CONCLUSION: In healthy adults from the general population, we found a significant and robust association between depression and anemia. Further studies are needed to assess the longitudinal relationship between both conditions and determine the mechanisms underlying this association.


Assuntos
Anemia/epidemiologia , Anemia/psicologia , Depressão/sangue , Depressão/epidemiologia , Hemoglobinas/metabolismo , Adulto , Anemia/sangue , Estudos de Coortes , Estudos Transversais , Feminino , França/epidemiologia , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores Socioeconômicos , Inquéritos e Questionários
7.
Rev Med Interne ; 45(6): 366-381, 2024 Jun.
Artigo em Francês | MEDLINE | ID: mdl-38789323

RESUMO

Although all patients with cancer-associated thrombosis (CAT) have a high morbidity and mortality risk, certain groups of patients are particularly vulnerable. This may expose the patient to an increased risk of thrombotic recurrence or bleeding (or both), as the benefit-risk ratio of anticoagulant treatment may be modified. Treatment thus needs to be chosen with care. Such vulnerable groups include older patients, patients with renal impairment or thrombocytopenia, and underweight and obese patients. However, these patient groups are poorly represented in clinical trials, limiting the available data on which treatment decisions can be based. Meta-analysis of data from randomised clinical trials suggests that the relative treatment effect of direct oral factor Xa inhibitors (DXIs) and low molecular weight heparin (LMWH) with respect to major bleeding could be affected by advanced age. No evidence was obtained for a change in the relative risk-benefit profile of DXIs compared to LMWH in patients with renal impairment or of low body weight. The available, albeit limited, data do not support restricting the use of DXIs in patients with TAC on the basis of renal impairment or low body weight. In older patients, age is not itself a critical factor for choice of treatment, but frailty is such a factor. Patients over 70 years of age with CAT should undergo a systematic frailty evaluation before choosing treatment and modifiable bleeding risk factors should be addressed. In patients with renal impairment, creatine clearance should be assessed and monitored regularly thereafter. In patients with an eGFR less than 30mL/min/1.72m2, the anticoagulant treatment may need to be adapted. Similarly, platelet count should be assessed prior to treatment and monitored regularly. In patients with grade 3-4, thrombocytopenia (less than 50,000platelets/µL) treatment with a LMWH at a reduced dose should be considered. For patients with CAT and low body weight, standard anticoagulant treatment recommendations are appropriate, whereas in obese patients, apixaban may be preferred.


Assuntos
Anticoagulantes , Neoplasias , Tromboembolia , Populações Vulneráveis , Humanos , Neoplasias/complicações , Neoplasias/epidemiologia , Populações Vulneráveis/estatística & dados numéricos , Tromboembolia/epidemiologia , Tromboembolia/etiologia , Anticoagulantes/uso terapêutico , Anticoagulantes/administração & dosagem , França/epidemiologia , Idoso , Fatores de Risco , Idioma , Heparina de Baixo Peso Molecular/uso terapêutico , Heparina de Baixo Peso Molecular/administração & dosagem , Hemorragia/etiologia , Hemorragia/epidemiologia
8.
J Am Geriatr Soc ; 71(12): 3721-3730, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37655948

RESUMO

BACKGROUND: Blood pressure (BP) postural changes, both orthostatic hypotension (OHYPO) and orthostatic hypertension (OHYPER) are common in older adults. Few studies have investigated their association with cognition, particularly for OHYPER, an emerging cardiovascular risk factor. We aimed to assess the association between OHYPO, OHYPER and cognition in non-institutionalized older subjects. METHODS: The S.AGES (Sujets ÂGES, Aged Subjects) cohort followed every 6 months for 3 years non-institutionalized subjects aged ≥65 years without dementia at inclusion, in France. OHYPO and OHYPER were respectively defined as a fall or an increase of ≥20 mmHg in systolic BP and/or ≥10 mmHg in diastolic BP after standing from a sitting position. Cognition was assessed using the Mini-Mental State Examination (MMSE). Linear mixed models were used for the analyses. RESULTS: Among the 3170 subjects included (mean age 78 years, 56% women), 209 (6.5%) had OHYPO and 226 (7.1%) had OHYPER at baseline. After adjustment for demographics, cardiovascular risk factors and disease, seated SBP/DBP and BP lowering treatment, mean MMSE was 0.52 point lower in participants with OHYPER compared to those with normal BP postural changes (ß adjusted [95% CI] = -0.52 [-0.96; -0.09], p = 0.02) and 0.50 point lower in participants with OHYPO compared to those with normal BP postural changes (ß adjusted [95% CI] = -0.50 [-0.95; -0.06], p = 0.03). Sensitivity analyses showed a dose-response relationship between OHYPO and cognition. CONCLUSION: Although the absolute differences in MMSE were small, both OHYPO and OHYPER were associated with lower cognition. Orthostatic BP measurements could help identify patients with risk of cognitive impairment. Further studies are needed to assess whether controlling orthostatic BP could be a promising interventional target in preserving cognition among older adults.


Assuntos
Disfunção Cognitiva , Hipertensão , Hipotensão Ortostática , Humanos , Feminino , Idoso , Masculino , Hipotensão Ortostática/complicações , Hipotensão Ortostática/epidemiologia , Hipertensão/complicações , Hipertensão/epidemiologia , Pressão Sanguínea/fisiologia , Cognição/fisiologia , Disfunção Cognitiva/diagnóstico
9.
J Frailty Aging ; 12(3): 175-181, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37493377

RESUMO

BACKGROUND: Frailty has emerged as one of the major risk factors of loss of autonomy and it can be reverted through early and appropriate interventions. A wide range of available frailty screening tools are administered, mainly in clinical settings. However, few frailty instruments are self-administered. OBJECTIVES: The aim of this study was to determine the diagnostic test accuracy of a modified self-administered questionnaire derived from the Study of Osteoporotic Fractures (SOF) index against the Fried frailty phenotype in identifying frailty. DESIGN: Observational, multicenter, diagnostic test accuracy study. PARTICIPANTS: Participants aged 70 and over, living at home or in community-dwelling (n=5134) in two centers in France were contacted. MEASUREMENTS: Participants were mailed self-administered questionnaires derived from the SOF index. Responders who accepted the home evaluation were assessed by trained nurses, blinded to results of the questionnaire, using the Fried frailty phenotype as the reference method. RESULTS: The questionnaire was sent to 5134 participants, of which 1878 (36.6%) met inclusion criteria and returned the questionnaire. Fried frailty assessments were obtained in 691 (35.4%) participants. A total of 639 subjects had a complete evaluation on both the self-administered questionnaire and the Fried phenotype. Mean age was 78.9 (standard deviation [SD]: 5.95) years and 359 (56.2%) participants were women. According to the questionnaire, 159 (24.9%) subjects were considered frail, 172 (26.9%) pre-frail, and 308 (48.2) robust. With the home evaluation, Fried frailty phenotype results were respectively, 114 (17.8%), 295 (46.2%) and 230 (36%). The self-administered questionnaire presented a sensitivity of 66.6% (95% CI: 57.2-75.2) and a specificity of 84.2% (95% CI: 80.8-87.2). CONCLUSIONS: A self-administered questionnaire can be used in elders and represents an opportunity for empowering them in the management of their health in the context of frailty.


Assuntos
Fragilidade , Humanos , Feminino , Idoso , Masculino , Fragilidade/diagnóstico , Fragilidade/prevenção & controle , Idoso Fragilizado , Valor Preditivo dos Testes , Serviços Postais , Avaliação Geriátrica/métodos , Vida Independente
10.
Mol Psychiatry ; 16(9): 903-7, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21556001

RESUMO

Apolipoprotein E (APOE) dependent lifetime risks (LTRs) for Alzheimer Disease (AD) are currently not accurately known and odds ratios alone are insufficient to assess these risks. We calculated AD LTR in 7351 cases and 10 132 controls from Caucasian ancestry using Rochester (USA) incidence data. At the age of 85 the LTR of AD without reference to APOE genotype was 11% in males and 14% in females. At the same age, this risk ranged from 51% for APOE44 male carriers to 60% for APOE44 female carriers, and from 23% for APOE34 male carriers to 30% for APOE34 female carriers, consistent with semi-dominant inheritance of a moderately penetrant gene. Using PAQUID (France) incidence data, estimates were globally similar except that at age 85 the LTRs reached 68 and 35% for APOE 44 and APOE 34 female carriers, respectively. These risks are more similar to those of major genes in Mendelian diseases, such as BRCA1 in breast cancer, than those of low-risk common alleles identified by recent GWAS in complex diseases. In addition, stratification of our data by age groups clearly demonstrates that APOE4 is a risk factor not only for late-onset but for early-onset AD as well. Together, these results urge a reappraisal of the impact of APOE in Alzheimer disease.


Assuntos
Doença de Alzheimer/genética , Apolipoproteína E3/genética , Apolipoproteína E4/genética , Predisposição Genética para Doença/genética , Hereditariedade/genética , Fatores Etários , Idoso , Alelos , Doença de Alzheimer/epidemiologia , Estudos de Casos e Controles , Feminino , França/epidemiologia , Genótipo , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Razão de Chances , Estados Unidos/epidemiologia
11.
Dement Geriatr Cogn Disord ; 33(2-3): 210-8, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22584691

RESUMO

BACKGROUND: The need to detect early changes in instrumental activities of daily life led us to modify the Disability Assessment for Dementia Scale (DAD) by focusing on executive components of 6 instrumental items (DAD-6). AIM: To evaluate the relevance of the DAD-6 for detecting early impairment in a nondemented population. METHODS: The DAD-6 was administered to informants of 84 patients: 31 with mild dementia (MD), 53 with mild cognitive impairment (MCI) and 55 healthy controls. RESULTS: DAD-6 scores gradually decreased with increasing severity of the cognitive status [18 in healthy controls vs. 15.1 ± 3.2 in MCI versus 9.6 ± 3.5 in MD, p < 0.0001). Receiver-operating characteristic curve analyses yielded an optimal cut score of 14 to distinguish MCI from MD with a sensitivity of 0.83 (95% confidence interval 0.74-0.92) and a specificity of 0.84 (0.71-0.94), and a cut score of 15 to distinguish single-domain MCI from multi-domain MCI with a sensitivity of 0.96 (0.90-0.99) and a specificity of 0.54 (0.33-0.75). CONCLUSION: The DAD-6 reliably detects early loss of autonomy due to cognitive impairment.


Assuntos
Atividades Cotidianas , Doença de Alzheimer , Transtornos Cognitivos , Avaliação da Deficiência , Função Executiva , Avaliação Geriátrica/métodos , Idoso , Doença de Alzheimer/complicações , Doença de Alzheimer/diagnóstico , Doença de Alzheimer/psicologia , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/etiologia , Transtornos Cognitivos/psicologia , Intervalos de Confiança , Diagnóstico Precoce , Feminino , Humanos , Masculino , Competência Mental , Pessoa de Meia-Idade , Testes Neuropsicológicos , Escalas de Graduação Psiquiátrica , Curva ROC , Reprodutibilidade dos Testes , Inquéritos e Questionários
12.
Rev Neurol (Paris) ; 168(1): 28-32, 2012 Jan.
Artigo em Francês | MEDLINE | ID: mdl-22153704

RESUMO

INTRODUCTION: Cerebrospinal fluid (CSF) biomarkers have been extensively studied as diagnostic markers for Alzheimer's disease (AD). However, results are variable probably due to lumbar puncture (LP) procedure, CSF collection and transport. This intercenter variability highlights the need for an efficient standardization of clinical and technical procedures. The aims of this study were firstly to compare the LP procedure and CSF transport process in all French Memory Centers and secondly to evaluate the incidence of LP side effects in 100 patients with cognitive disturbances. METHODS: LP practice and side effect prospective questionnaires were sent to all French Memory Centers in May 2010. Memory Centers were asked about their LP procedure. The prospective study over a three-week-period has evaluated the LP feasibility and side effects. All data were collected until the end of July 2010. RESULTS: The answers of 18 out of 26 Memory Centers were collected. Although, these centers did not have the same LP procedure and CSF transport, the majority of them proceeded according to Innogenetics's advices concerning the use of polypropylene tubes and transport duration but not sample conditioning. Polypropylene tubes were different from one center to the other. CSF volume, pharmacological premedication and prevention of post-LP syndrome were variable in all responding centers. The prospective study carried out in 100 patients revealed a very good LP acceptability (93/100 patients). LP feasibility was 97 % (90/93) and failed LP were consequently performed with success using radiological scopes. Three minor complications were observed. DISCUSSION AND CONCLUSION: All French Centers complied with Innogenetics' recommendations for pretechnical CSF procedures; however each Center put in place its own procedure that was different one center to the other. It will be very interesting to compare cut-off and result values for Aß, tau and phosphorylated tau protein on threonine 181 between several centers that used their own procedures. Acceptability and safety were very good in our short but significant prospective study. These results confirm the data of Zetterberg et al., 2010.


Assuntos
Biomarcadores/líquido cefalorraquidiano , Punção Espinal/métodos , Idoso , Doença de Alzheimer/líquido cefalorraquidiano , Peptídeos beta-Amiloides/líquido cefalorraquidiano , Estudos de Viabilidade , Feminino , França , Fidelidade a Diretrizes , Guias como Assunto , Pesquisas sobre Atenção à Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Polipropilenos , Estudos Prospectivos , Reprodutibilidade dos Testes , Manejo de Espécimes , Punção Espinal/efeitos adversos , Punção Espinal/estatística & dados numéricos , Inquéritos e Questionários , Falha de Tratamento , Proteínas tau/líquido cefalorraquidiano
13.
Ann Cardiol Angeiol (Paris) ; 71(1): 41-52, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34274113

RESUMO

Heart failure (HF) has high event rates, mortality, and is challenging to manage in clinical practice. Clinical management is complicated by complex therapeutic strategies in a population with a high prevalence of comorbidity and general frailty. In the last four years, an abundance of research has become available to support multidisciplinary management of heart failure from within the hospital through to discharge and primary care as well as supporting diagnosis and comorbidity management. Within the hospital setting, recent evidence supports sacubitril-valsartan combination in frail, deteriorating or de novo patients with LVEF≤40%. Furthermore, new strategies such as SGLT2 inhibitors and vericiguat provide further benefit for patients with decompensating HF. Studies with tafamidis report major clinical benefits specifically for patients with ATTR cardiac amyloidosis, a remaining underdiagnosed and undertreated disease. New evidence for medical interventions supports his bundle pacing to reduce QRS width and improve haemodynamics as well as ICD defibrillation for non-ischemic cardiomyopathy. The Mitraclip reduces hospitalisations and mortality in patients with symptomatic, secondary mitral regurgitation and ablation reduces mortality and hospitalisations in patients with paroxysmal and persistent atrial fibrillation. In end-stage HF, the 2018 French Heart Allocation policy should improve access to heart transplants for stable, ambulatory patients and, mechanical circulatory support should be considered to avoid deteriorating on the waiting list. In the community, new evidence supports that improving discharge education, treatment and patient support improves outcomes. The authors believe that this review fills the gap between the guidelines and clinical practice and provides practical recommendations to improve HF management.


Assuntos
Insuficiência Cardíaca , Alta do Paciente , Aminobutiratos , Compostos de Bifenilo , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/terapia , Hospitalização , Hospitais , Humanos
14.
Ann Cardiol Angeiol (Paris) ; 68(4): 237-240, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31472760

RESUMO

The use of an automatic blood pressure monitor with the help of a protocol given by an e-health application allows self-testing of blood pressure without the help of a health professional. OBJECTIVE: Conduct a screening campaign for high blood pressure in artisanal bakeries in France and develop a score to predict the observation of an increase in blood pressure during self-testing. METHOD: Cross-sectional survey conducted in mainland France in 2018 using 1000 screening kits including a tablet, Predic'HTA® application and a connected electronic blood pressure monitor (BP Track, IHealth). Available for one week in 14,000 artisanal bakeries, in turn. Used in the workplace, on a voluntary basis, by bakery employees. Completion of a health questionnaire with an estimate of excessive salt consumption. Self-screening of 3 blood pressure measurements with centralization of data on a secure database for epidemiological analysis. The average of the last 2 measurements characterizes each subject. RESULTS: Full use of Predic'HTA® was obtained in 62.4% of users or 7502 subjects (44% under 35 years of age, 44% 35 to 54 years of age, 12% 55 years of age and over). Antihypertensive treatment was followed by 27% of those aged 55 and over and 1% of those under 35. Among untreated subjects, the prevalence of BP>140/90 was 21.1%, increasing with age (13%, 27%, 33%) and higher among men (27.2%) than among women (15.4%). With the parameters age, sex, weight, IMC, family history of high blood pressure, excessive salt consumption, previous intake of an antihypertensive drug, a score is calculated to associate a probability of having an BP >120/80 with self-screening. The ROC curve shows an AUC at 0.723 with a PPV at 91% and a NPV at 41%. The depist'HTA® score is available at www.depisthta.net CONCLUSION: Self-testing of blood pressure is possible with an electronic blood pressure monitor if a dedicated appliance is used at the same time. The development of the prediction score depist'HTA® for a blood pressure level>120/80 would be useful to target subjects who need to self-test their blood pressure in the short term.


Assuntos
Monitorização Ambulatorial da Pressão Arterial , Hipertensão/diagnóstico , Adulto , Estudos Transversais , Feminino , Indústria Alimentícia , França , Humanos , Masculino , Pessoa de Meia-Idade , Saúde Ocupacional , Valor Preditivo dos Testes , Autorrelato
15.
Ann Cardiol Angeiol (Paris) ; 67(3): 186-190, 2018 Jun.
Artigo em Francês | MEDLINE | ID: mdl-29786508

RESUMO

OBJECTIVE: A Visual Analog Scale (VAS) is useful for diagnosing medication nonadherence and its validity has been evaluated using electronic pillbox as the gold standard. We have developed the EvaLobs® scale for use on paper or on smartphone and the aim of the study was to administrate the scale among FLAHS 2017 participants treated for an hypertension, a dyslipidemia or diabetes. In subjects treated with antihypertensive medications, participants completed the 6-item Girerd Scale and EvaLobs®. METHODS: The French League Against Hypertension Survey (FLAHS) are carried out by self-questionnaire sent by mail to individuals from the French Kantar Health sampling frame (representative panel of the population living in metropolitan France). In 2017, FLAHS was conducted in 4783 subjects aged 35 and over. The EvaLobs® has a scale from 0 to 15 and the use instruction is "how many days have you taken the drug in the past 15 days". A score>12 indicates a "good compliance". The 6-item Girerd scale was also completed. "Good adherence" was determined for a score of 0 to 2 and "nonadherence" for a score of 3 or more. The agreement between EvaLobs® and the 6-item Girerd scale was evaluated in treated hypertensives. RESULTS: The survey included 4783 subjects with 1308 treated hypertensives, 942 subjects treated with lipid-lowering drugs and 405 subjects treated with anti-diabetics. EVALOBS® indicates "Good adherence" in 96% of subjects and the 6 questions questionnaire indicates "good adherence" in 95% of subjects. An excellent agreement is noted in 93.8%. An EvaLobs® score indicating nonadherence or an absence of response to EvaLobs® is observed in 3.6% [CI 95, 2.5-4.7] of hypertensives, in 6.0% [CI 95, 3.9-8.1] of diabetics and in 8.2% [CI 95, 6.5-9.9] of dyslipidemic patients. CONCLUSION: In the population living in France and in unselected patients treated for metabolic disease or hypertension, non-adherence is lowest for antihypertensive medications and highest for statins. EvaLobs®, which shows good agreement with an adherence questionnaire, is a quick and simple tool for assessing adherence. The smartphone app EvaLobs® is available for free on Google play and the Apple store.


Assuntos
Anti-Hipertensivos/uso terapêutico , Diabetes Mellitus/tratamento farmacológico , Dislipidemias/tratamento farmacológico , Hipertensão/tratamento farmacológico , Hipoglicemiantes/uso terapêutico , Hipolipemiantes/uso terapêutico , Adesão à Medicação/estatística & dados numéricos , Autorrelato , Escala Visual Analógica , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , França , Humanos , Masculino , Pessoa de Meia-Idade
16.
J Med Vasc ; 43(5): 302-309, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30217344

RESUMO

In the case of venous thromboembolic disease (VTE), physicians are facing more and more difficulties in managing VTE and their treatment in frail patients. These patients could present several risk situations such as: chronic kidney disease (CKD), underweight or malnourished, falls, cognitive impairment, multi-medicated patients, cancer and pregnancy. Guidelines typically recommend anticoagulation. There are multiple challenges in the safe use of anticoagulation in frail patients, including bleeding risk, monitoring and adherence, and polypharmacy. The objective of this review is to explore these at-risk situations and to suggest adequate anticoagulation therapy, when possible, in each of these complex situations.


Assuntos
Anticoagulantes/uso terapêutico , Fragilidade/complicações , Humanos , Neoplasias/complicações , Insuficiência Renal Crônica/complicações , Fatores de Risco
17.
Ann Cardiol Angeiol (Paris) ; 67(3): 149-153, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29807620

RESUMO

OBJECTIVE: Since January 2017, olmesartan-based treatments are no longer reimbursed by French health insurance. Health authorities have recommended switch to one of the "many effective, better tolerated and reimbursed alternatives". The objective of this study was to evaluate the consequences on the prescription of antihypertensive drugs in France and to evaluate the blood pressure control of treated hypertensive patients after the switch from olmesartan to another Angiotensin receptor blocker (ARB). METHODS: To evaluate antihypertensive prescriptions, the French League Against Hypertension Survey (FLAHS) was conducted in 2007, 2012 and 2017 by self-questionnaire sent by mail to a representative panel of the population living in metropolitan France aged 35 years and over. Antihypertensive treatments were grouped by pharmacological class. To evaluate blood pressure control in hypertensive patients treated with olmesartan alone or in combination, 3 home blood pressure monitoring (HBPM) were performed. The first and the second were performed without modification of the dose of olmesartan. The third was performed 1 month after the switch to another ARB. RESULTS: Antihypertensive prescriptions changed between 2007 and 2017. Beta-blockers decreased between 2007 and 2012 and then increased slightly. Between 2012 and 2017, ARB and diuretics decreased and ACE inhibitors (ACE-I) and calcium antagonist (CA) drugs increased. Blood pressure control was assessed in 82 hypertensive patients aged 63±11 years treated with olmesartan. The difference in SBP/DBP between the first 2 self-measurements was -0.96/-0.83mmHg. After therapy switch, the 3rd self-measurement showed an increase in SBP/DBP of 3.4/1.2mmHg. In the subgroup of olmesartan-treated controlled hypertensive patients, the switch to another ARB lead to uncontrolled hypertension for 20% of patients with a 12.1mmHg increase in SBP. CONCLUSION: With the halt of reimbursement of olmesartan, there was a decrease in the prescription of ARB in France. When olmersartan was replaced by another ARB, a worse blood pressure control was observed in treated hypertensive patients. The cessation of the reimbursement of olmesartan has had consequences on the treatment of hypertension in France.


Assuntos
Bloqueadores do Receptor Tipo 1 de Angiotensina II/economia , Bloqueadores do Receptor Tipo 1 de Angiotensina II/uso terapêutico , Anti-Hipertensivos/economia , Prescrições de Medicamentos/estatística & dados numéricos , Substituição de Medicamentos/estatística & dados numéricos , Hipertensão/tratamento farmacológico , Imidazóis/economia , Tetrazóis/economia , Adulto , Feminino , França , Humanos , Masculino , Pessoa de Meia-Idade , Mecanismo de Reembolso , Autorrelato
18.
J Nutr Health Aging ; 22(1): 165-173, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29300437

RESUMO

BACKGROUND: Few geriatric patients were included in studies on direct oral anticoagulants and data on dabigatran concentration and safety are needed in this population. Our objectives were to evaluate peak and trough dabigatran plasma concentrations over time in a geriatric population and to identify factors associated with dabigatran plasma concentrations and to assess the relationship with bleeding events. METHODS: Peak and trough dabigatran plasma concentration were performed 4,8,15,30,45 days after inception of dabigatran treatment in 68 consecutive patients ≥75 years old hospitalized in a geriatric hospital with atrial fibrillation. Bleeding events were monitored for 1 year. RESULTS: Mean age was 85.8(5.1) years old and 76.5% were women. Overall, 541 dabigatran plasma measurements (270 peak, 271 trough) were performed. Mean dabigatran concentrations of the 5 sequential measurements ranged 106-146ng/mL for peak and 66-84ng/mL for trough. Renal failure was associated with high peak and trough dabigatran concentration. Inter- and intra-individual coefficients of variation were 59.5% and 44.7% for peak and 74.5% and 44.6% for trough. Participants in the lower two tertiles of dabigatran concentration at day 8 (D8) remained below the 90th percentile (243.9ng/ml) on the next measurements. Bleeding events were associated with high trough dabigatran concentrations. Trough dabigatran concentration at D8>243.9ng/mL significantly predicted bleeding. CONCLUSION: In this geriatric population, renal function and low albumin were associated with dabigatran concentrations. Despite large variability, participants in the lower two tertiles of dabigatran concentration at D8 remained below the 90th percentile on the following measurements. D8 dabigatran trough concentration≥243.9ng/mL identified patients at risk of bleeding.


Assuntos
Antitrombinas/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Dabigatrana/uso terapêutico , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Antitrombinas/farmacologia , Fibrilação Atrial/patologia , Dabigatrana/farmacologia , Feminino , Hospitalização , Humanos , Masculino , Fatores de Risco
19.
Eur J Neurol ; 14(2): 144-9, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17250721

RESUMO

Within the context of early diagnosis of Alzheimer's disease (AD), there is a growing interest in neuropsychological screening tests. Amongst these tests, we focused on the largely used Memory Impairment Screen (MIS). The objective of the present work was to show that adding a 10-min delayed recall to the MIS, improves the test psychometric characteristics in order to detect dementia in the earliest stages. A prospective study was carried out on a cohort of 270 consecutive elderly ambulatory subjects attending the Broca Hospital Memory Clinic: normal controls (n = 67), mild cognitive impairment subjects (n = 98) and mildly demented patients [n = 105, Mini Mental State Examination (MMSE) = 23 +/- 4]. This study consisted in testing the advantage of the 10-min delayed recall entitled MIS-D compared with the MIS. At a cut-off score of 6, the MIS-D revealed satisfying psychometric characteristics with a sensitivity of 81% and a specificity of 91%, whilst the MIS alone indicated a sensitivity of 60% and a specificity of 88% in detecting dementia. In demented patients with MMSE score > or =26, MIS-D properties still remained satisfying (sensitivity: 75%, specificity: 92%). MIS-D is a more relevant screening test than MIS alone at very early stages of dementia.


Assuntos
Demência/diagnóstico , Demência/psicologia , Programas de Rastreamento/métodos , Rememoração Mental , Testes Neuropsicológicos , Idoso , Idoso de 80 Anos ou mais , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/psicologia , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos/normas , Estudos Prospectivos , Psicometria , Curva ROC , Sensibilidade e Especificidade , Índice de Gravidade de Doença , Fatores de Tempo
20.
Arch Mal Coeur Vaiss ; 100(8): 654-9, 2007 Aug.
Artigo em Francês | MEDLINE | ID: mdl-17928770

RESUMO

UNLABELLED: White matter lesions (WML) are frequently disclosed on elderly people computed tomography (CT) brain scan. OBJECTIVE: To evaluate the relationship between WML and cognitive functions of patients suffering from Mild Cognitive Impairment (MCI). METHODS: We studied the association between WML on CT brain scan and cognitive functions in 136 consecutive elderly subjects attending a geriatric outpatient clinic, suffering from MCI. The global cognitive assessment was based on Mini Mental State Examination (MMSE), a validated comprehensive battery of neuropsychological tests, the Cognitive Efficiency Profile (CEP), a CT brain scan and a complete biological screening. WML on CT brain scan was evaluated by a blinded investigator. RESULTS: In this population, 75 +/- 8 years of age, (women 60%, and hypertension 54%), 33% of subjects had WML on CT brain scan. Patients with WML were significantly older (OR=1.27; IC 95%=1.04 - 1.22), had more frequently a past history of hypertension (OR=2.71; IC 95%=1.06 - 6.96) and more frequently lacunae associated with WML (OR=4.48; IC 95%=1.18 - 16.99). Subjects with WML had significantly poorer cognitive functions than those without WML (CEP score/100=62.33 +/- 13.58 versus 71.87 +/- 14.19, p<0.01 and MMSE score/30=27.02 +/- 2.34 versus 27.97 +/- 1.89, p<0.01) CONCLUSION: Our results showed a relationship between WML on CT brain scan and the depth of cognitive dysfunction among MCI patients. Further long term prospective studies have to be performed to determinate if WML are involved in transitions between MCI and Alzheimer' s disease.


Assuntos
Encéfalo/diagnóstico por imagem , Transtornos Cognitivos/complicações , Fatores Etários , Idoso , Infarto Encefálico/complicações , Infarto Encefálico/diagnóstico por imagem , Feminino , Humanos , Hipertensão/complicações , Masculino , Testes Neuropsicológicos , Estudos Prospectivos , Tomografia Computadorizada por Raios X
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