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1.
Aging Clin Exp Res ; 36(1): 54, 2024 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-38441748

RESUMEN

This scoping review was conducted to identify the outcomes and measurement tools used in IC intervention studies, as first step towards the development of a core outcome set (COS) for IC trials. PRISMA-ScR and COS-STAD were followed. The review considered randomized controlled trials targeting IC published in Medline, Scopus, Embase, Cochrane Central Register of Controlled Trials, and clinicaltrials.gov, until June 2023. Of 699 references, 534 studies were screened once duplicates were removed, 15 were assessed for eligibility, and 7 (4 articles and 3 protocols) met eligibility criteria. Twenty-eight outcomes were identified (19 related to IC and its domains and 9 unrelated). The most reported primary outcome was the change in IC levels postintervention (5 over 7 studies) and the most reported outcomes (either as primary and/or secondary) were the changes in physical performance and in depressive symptoms (6 over 7 studies). Fifty-five tools used to construct the domains' z-scores and/or assess the effect of interventions were identified (47 related to IC and its domains and 8 unrelated). The most reported tool was an IC Z-score, calculated by 4 domains' z-scores: locomotor, vitality, cognitive, and psychological (5 over 7 studies). The tools differed among studies (10 locomotor related, 6 vitality related, 16 cognitive related, 8 psychological related, 6 sensorial related, 8 unrelated tools). The vast heterogeneity (28 outcomes and 55 tools within 7 studies) highlighted the need of a COS. These outcomes and tools will be presented to experts in a future step, to select the ones that should be taken into consideration in IC trials.


Asunto(s)
Evaluación de Resultado en la Atención de Salud , Rendimiento Físico Funcional , Humanos
2.
Age Ageing ; 50(6): 2140-2146, 2021 11 10.
Artículo en Inglés | MEDLINE | ID: mdl-34379741

RESUMEN

INTRODUCTION: Hospitalization is associated with acute changes in sarcopenia status in older people, but the influencing factors are not fully understood. Pre-admission care dependency level as a risk factor has not yet been investigated. OBJECTIVE: Evaluate if pre-admission care dependency level is an independent predictor of sarcopenia changes following hospitalization. SETTING AND SUBJECTS: Data came from the Sarcopenia 9+ EAMA Project, a European prospective multi-centre study. For this study, 227 hospitalised older people were included from four different hospitals in Belgium, Spain and Poland, between 18 February 2019 and 5 September 2020. METHODS: Sarcopenia status at admission and discharge were calculated using a combined score (desirability value) based on muscle mass (calf circumference), strength (grip) and function (walking speed). Ratio of admission to discharge status was the outcome (desirability ratio; 1.00 meaning no difference). Predictor variable was the pre-admission care dependency level, classified into three groups: independent older people living at home, dependent older people living at home and older people living in a care home. Linear regression models were applied, considering potential confounders. RESULTS: Mean desirability ratio for dependent older people living at home ('middle dependent group') was lower (0.89) compared to independent older people (0.98; regression coefficient -0.09 [95% CI -0.16, -0.02]) and care home patients (1.05; -0.16 [95% CI -0.01, -0.31]). Adjusting for potential confounders or using another statistical approach did not affect the main results. CONCLUSION: Dependent older people living at home were at higher risk of deterioration in sarcopenia status following hospitalization. In-depth studies investigating causes and potential interventions of these findings are needed.


Asunto(s)
Sarcopenia , Anciano , Evaluación Geriátrica , Fuerza de la Mano , Hospitalización , Humanos , Estudios Prospectivos , Sarcopenia/diagnóstico , Sarcopenia/epidemiología , Sarcopenia/terapia
3.
J Clin Psychopharmacol ; 40(3): 297-299, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32332466

RESUMEN

BACKGROUND: Anxiety is a common and invalidating symptom of dementia with Lewy bodies (DLB). METHODS: To evaluate the efficacy of pregabalin as a treatment for anxiety in DLB, we screened all medical files of our patients with DLB for the use of pregabalin in this context. FINDINGS: Overall, pregabalin was well tolerated. Ten (62.5%) of 16 patients showed an improvement of anxiety, whereas in 3 of them, anxiety disappeared completely, at respectively 3, 11, and 22 months of follow-up, with total daily doses ranging from 75 to 150 mg. Positive response to pregabalin was associated with a significant reduction in benzodiazepine use. CONCLUSIONS: Pregabalin seems a useful and safe tool for treating anxiety in patients with DLB.


Asunto(s)
Ansiedad/tratamiento farmacológico , Enfermedad por Cuerpos de Lewy/tratamiento farmacológico , Pregabalina/uso terapéutico , Anciano , Anciano de 80 o más Años , Ansiolíticos/uso terapéutico , Ansiedad/complicaciones , Femenino , Humanos , Enfermedad por Cuerpos de Lewy/complicaciones , Masculino , Estudios Retrospectivos
4.
Psychogeriatrics ; 20(3): 242-246, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-31782249

RESUMEN

AIM: Dementia with Lewy bodies (DLB) is a common but underdiagnosed type of cognitive impairment and dementia. The current diagnostic criteria for research purposes have a high specificity but lack sensitivity. Moreover, patients who live alone are not always aware that they have core clinical features such as cognitive fluctuations, visual hallucinations, and parasomnia. Anxiety is a common and early manifestation in DLB. METHODS: We matched 41 DLB patients with 41 patients with Alzheimer's disease (AD) according to gender, age, and cognitive status and retrospectively analyzed their files for the presence of anxiety, depression, constipation, and the core clinical features of DLB in the documented period before diagnosis. RESULTS: Anxiety, but not depression, occurred significantly more frequently in DLB than in AD (63.4% vs 26.8%). It appears up to 4-5 years before the diagnosis of DLB and is associated with depression and living at home. Anxiety in DLB was often described as intermittent panic attacks without reason or during states of delirium; it was also severe enough to require medical treatment and inpatient or outpatient psychiatric care. It was often mistaken for a psychiatric illness or a manifestation of other common forms of dementia. Anxiety in AD seemed much milder, was often related to the patient's coping with cognitive dysfunction, and was never cited as a specific reason for medical help. The concomitant presence of anxiety with at least one core clinical criterion of DLB enabled us to differentiate it from AD in our study, with a sensitivity of 63.4% but a specificity of 100%. CONCLUSIONS: In all patients over 50 who present with cognitive problems and anxiety, DLB should be considered. Patients and informants should be carefully questioned regarding the presence of other typical signs and symptoms of DLB.


Asunto(s)
Enfermedad de Alzheimer/complicaciones , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/etiología , Demencia/complicaciones , Cuerpos de Lewy/patología , Enfermedad por Cuerpos de Lewy/complicaciones , Anciano , Anciano de 80 o más Años , Enfermedad de Alzheimer/diagnóstico , Enfermedad de Alzheimer/psicología , Ansiedad , Demencia/diagnóstico , Demencia/psicología , Femenino , Alucinaciones/complicaciones , Humanos , Enfermedad por Cuerpos de Lewy/diagnóstico , Masculino , Pruebas Neuropsicológicas
7.
Alzheimer Dis Assoc Disord ; 28(3): 291-3, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-22760168

RESUMEN

Weight loss is a frequent complication of Alzheimer disease (AD), associated with increased morbidity and mortality. Increased appetite and weight gain are known side effects of the antidepressant mirtazapine. This analysis was undertaken to assess the safety and potential utility of mirtazapine to counteract weight loss in patients with AD or mixed AD (AD with cerebrovascular lesions). We performed a retrospective analysis of the clinical records of all outpatients attending our memory clinic for AD or mixed AD, who had received mirtazapine (30 mg daily) with the specific purpose of inducing weight or appetite gain. Data were available for a total of 22 patients (mean age, 80.9 y, 86.4% female). The mean weight at baseline was 52.4 kg and the mean BMI was 20.5 kg/m. 77.3% of the patients had gained weight after 3 months (mean gain, 1.93 kg or 3.9% of initial body weight) and 82.3% after 6 months (2.11 kg or 4.6%). One patient had to discontinue mirtazapine because of daytime sleepiness. Mirtazapine seems to be a safe and useful approach to counteract weight loss in AD, if possible in combination with nonpharmacological interventions. Body weight should be monitored during treatment to avoid excessive weight gain.


Asunto(s)
Enfermedad de Alzheimer/complicaciones , Estimulantes del Apetito/uso terapéutico , Mianserina/análogos & derivados , Pérdida de Peso/efectos de los fármacos , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Mianserina/uso terapéutico , Mirtazapina , Estudios Retrospectivos
9.
Psychogeriatrics ; 13(3): 175-9, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25913766

RESUMEN

Autoimmune encephalopathy is a rare but potentially reversible cause of cognitive deterioration and neuropsychiatric disturbances. We describe two older female patients with subacute cognitive decline and marked neuropsychiatric disturbances in the presence of high serum anti-thyroid peroxidase antibodies and with normal dosage of free thyroxine 4. One patient recovered almost completely after oral corticotherapy. Differential diagnosis and the role of biomarkers, in particular, are discussed. We support a pragmatic approach involving a short empirical therapeutic trial with intravenous or oral corticoids; this should be considered in all patients with subacute encephalopathy and with laboratory arguments for an underlying autoimmune aetiology.


Asunto(s)
Autoanticuerpos/sangre , Encefalopatías/sangre , Encefalopatías/complicaciones , Trastornos del Conocimiento/sangre , Trastornos del Conocimiento/complicaciones , Enfermedad de Hashimoto/sangre , Enfermedad de Hashimoto/complicaciones , Yoduro Peroxidasa/sangre , Anciano , Antiinflamatorios/uso terapéutico , Biomarcadores/sangre , Encefalopatías/tratamiento farmacológico , Trastornos del Conocimiento/tratamiento farmacológico , Diagnóstico Diferencial , Encefalitis , Femenino , Enfermedad de Hashimoto/tratamiento farmacológico , Humanos , Metilprednisolona/uso terapéutico
10.
Acta Neurol Belg ; 123(3): 803-806, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37014517

RESUMEN

BACKGROUND AND PURPOSE: The establishment of cognitive fluctuations is important when dementia with Lewy bodies (DLB) is suspected but can be especially difficult in the absence of a caregiver who lives with the patient. We examined the possibility of using fluctuating scores on a forward (FDS) and a backward digit span (BDS) test as a marker for cognitive fluctuation. METHODS: Patients with DLB (21), other forms of dementia (14 with Alzheimer's disease, 8 with vascular dementia) and 20 controls were asked to perform an FDS and BDS twice, with an interval of 20 min. RESULTS: Seventy percent of patients with DLB showed evidence of cognitive fluctuations for at least one test, while less than 10% of controls and patients with other dementias did. Evidence of cognitive fluctuations on at least one of both tests classified 83% of patients correctly (i.e. DLB or not), with a sensitivity of 70% and a specificity of 90%. CONCLUSIONS: Repeated forward and backward digit span tests seem a valid, short, easy and inexpensive bedside tool to detect cognitive fluctuations in the diagnostic work-up of DLB, even in the absence of a caregiver, which limits the use of questionnaires.


Asunto(s)
Enfermedad de Alzheimer , Demencia Vascular , Enfermedad por Cuerpos de Lewy , Humanos , Enfermedad por Cuerpos de Lewy/diagnóstico , Enfermedad por Cuerpos de Lewy/psicología , Pruebas Neuropsicológicas , Enfermedad de Alzheimer/diagnóstico , Enfermedad de Alzheimer/psicología , Cognición
11.
Arch Osteoporos ; 18(1): 88, 2023 06 28.
Artículo en Inglés | MEDLINE | ID: mdl-37369953

RESUMEN

Only previous glucocorticoid use and rheumatoid arthritis were predictors of an early fracture (< 2 years after inclusion). A shorter 'time to first fracture' was not an independent clinical risk factor for imminent fractures. PURPOSE: Risk factors for fragility fractures independent of BMD were assessed in several prediction models. However, predictors of a shorter 'time to first fracture' and its impact on imminent fractures are unknown. METHODS: We studied the concept of 'time to first fracture' in the FRISBEE ("Fracture RIsk Brussels Epidemiological Enquiry") cohort (3560 postmenopausal women). Validated fractures were divided into 3 groups: first fracture < 2 years, 2-5 years, and > 5 years after inclusion. Factors associated with first fracture risk were evaluated with uni- and multivariate analyses using Cox modeling. We examined 'time to first fracture' as a risk factor for imminent fractures in untreated subjects and in those receiving pharmacological treatment. RESULTS: Classical risk factors (age, prior fracture, fall history and low BMD) were associated with first fracture in all groups. Previous glucocorticoids and rheumatoid arthritis (RA) were predictors for fracture < 2 years. Imminent fractures were similar in subjects with or without osteoporosis treatment, despite a higher estimated 10-year risk of fragility fracture in those treated, suggesting that treatment is efficient. 'Time to first fracture' was not an independent risk factor for imminent fractures. CONCLUSION: Among the risk factors considered, previous glucocorticoid use and RA were predictors for early fracture, consistent with the concept of very high risk. The 'time to first validated fracture' was not an independent risk factor for imminent fractures. Patients with a first osteoporotic fracture should thus be considered at very high risk for re-fracture, independent of the 'time to first fracture'.


Asunto(s)
Artritis Reumatoide , Fracturas Osteoporóticas , Humanos , Femenino , Glucocorticoides/uso terapéutico , Factores de Riesgo , Fracturas Osteoporóticas/epidemiología , Fracturas Osteoporóticas/etiología , Artritis Reumatoide/complicaciones , Artritis Reumatoide/tratamiento farmacológico , Artritis Reumatoide/epidemiología , Accidentes por Caídas , Densidad Ósea , Medición de Riesgo
12.
Artículo en Inglés | MEDLINE | ID: mdl-37047936

RESUMEN

The Global Leadership Initiative on Malnutrition (GLIM) criteria were introduced in 2018 for the diagnosis of malnutrition in adults. This review was aimed at gathering the evidence about the association between malnutrition according to the GLIM criteria and mortality in older people, an emerging and clinically meaningful topic in the implementation of the GLIM criteria in geriatric healthcare settings. This scoping review considered meta-analyses, systematic reviews, cohort studies, and cross-sectional studies published in PubMed, Scopus, and the Cochrane Database for Systematic Reviews from the development of the GLIM criteria in 2018 to January 2023. Seventeen articles (15 cohort and 2 cross-sectional studies) were included. The association between GLIM criteria and mortality had been assessed in hospitalized (11 over the 17 articles) and community-dwelling older populations, and those in nursing homes. The review found a strong association between malnutrition according to GLIM criteria and mortality in hospitalized (1.2-fold to 7-fold higher mortality) and community-dwelling older people (1.6-fold to 4-fold higher mortality). These findings highlight the prognostic value of the GLIM criteria and support strategies towards the implementation of malnutrition evaluation according to the GLIM, in order to optimize comprehensive geriatric assessment and provide older people with the highest quality of nutritional care. Studies in nursing home populations were very scarce and may be urgently required.


Asunto(s)
Liderazgo , Desnutrición , Adulto , Humanos , Anciano , Estudios Transversales , Revisiones Sistemáticas como Asunto , Desnutrición/epidemiología , Casas de Salud , Evaluación Nutricional , Estado Nutricional
13.
Clin Nutr ESPEN ; 57: 65-72, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37739719

RESUMEN

OBJECTIVE: To determine whether the Geriatric Nutritional Risk Index (GNRI) on hospital admission was associated to an increased 14-day and 12-month mortality-risk in older inpatients with COVID-19. METHODS: Cohort study of consecutive inpatients admitted with COVID-19 in a university hospital (20/03/2020-11/05/2021). INCLUSION CRITERIA: age over 65 years and positive polymerase chain reaction test. EXCLUSION CRITERIA: missing data for weight, height, and/or albumin, hospital-acquired COVID-19, or patients transferred to other health facilities. OUTCOME: all-cause mortality at 14-day and 12-month follow-up. GNRI [1.489 × albumin (g/L)] + [41.7 (weight/ideal body weight)] was assessed at admission; scores ≤98 indicated risk of malnutrition. Cox-proportional hazards models assessed the association between the admission GNRI and 14-day and 12-month mortality-risk, after adjusting by demographic and clinical variables, including inflammation (C-reactive protein). RESULTS: Of the 570 eligible patients, 224 (mean age 78 years; 52.2% women) met inclusion criteria and 151 (67.4%) were classified at risk of malnutrition. Twenty patients died during the 14-day and 42 during the 12-month follow-up. The risk of 14-day mortality was nearly 10 times higher in patients with GNRI scores ≤98 (HR = 9.6 [95%CI 1.3-71.6], P = 0.028); this association was marginally significant in the adjusted model (HR = 6.73 [95%CI 0.89-51.11], P = 0.065)]. No association between GNRI and the 12-month mortality-risk was found. CONCLUSIONS: The GNRI may play a role in the short-term prognosis of older inpatients with COVID-19. Further studies are required to confirm the short-term predictive validity of the GNRI within this population (Clinicaltrials.gov_NCT05276752).


Asunto(s)
COVID-19 , Desnutrición , Humanos , Femenino , Anciano , Masculino , Estudios de Cohortes , Pacientes Internos , Albúminas , Desnutrición/diagnóstico
14.
J Clin Psychopharmacol ; 32(3): 412-5, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22544007

RESUMEN

OBJECTIVE: This retrospective study aimed to evaluate the incidence of transdermal rivastigmine treatment withdrawal secondary to adverse skin reactions among the patients from our Memory Clinic. In addition, we tested whether climatic conditions might have an influence on skin irritations leading to eventual treatment disruption. METHODS: We performed a retrospective review of patients from the Brugmann University Hospital Memory Clinic having started transdermal rivastigmine between June 2008 and December 2010. Local meteorological data were provided by the Royal Meteorological Institute of Belgium. RESULTS: A total of 26.9% of the patients experienced adverse skin reactions at the rivastigmine application site, leading to treatment discontinuation in 19.2% of the cases. Rivastigmine cutaneous tolerability was not found to be related to demographic parameters, Mini Mental Status Examination score, or type of dementia. High temperature and low air humidity during the first month of treatment were found to be associated with a higher incidence of skin reactions and secondary treatment disruption. CONCLUSIONS: Transdermal rivastigmine induced a higher incidence of cutaneous adverse events than previously reported in a prospective clinical trial. Moreover, it seems that meteorological conditions favoring skin perspiration (high temperature and low air humidity) during the first month of treatment might have an influence on transdermal rivastigmine skin tolerability.


Asunto(s)
Inhibidores de la Colinesterasa/efectos adversos , Erupciones por Medicamentos/etiología , Nootrópicos/efectos adversos , Fenilcarbamatos/efectos adversos , Anciano , Anciano de 80 o más Años , Enfermedad de Alzheimer/tratamiento farmacológico , Enfermedad de Alzheimer/fisiopatología , Bélgica/epidemiología , Inhibidores de la Colinesterasa/administración & dosificación , Delirio/etiología , Delirio/prevención & control , Erupciones por Medicamentos/epidemiología , Femenino , Hospitales Universitarios , Humanos , Incidencia , Masculino , Registros Médicos , Persona de Mediana Edad , Nootrópicos/administración & dosificación , Servicio Ambulatorio en Hospital , Fenilcarbamatos/administración & dosificación , Proyectos Piloto , Estudios Retrospectivos , Rivastigmina , Sudoración , Parche Transdérmico , Tiempo (Meteorología)
15.
J Clin Endocrinol Metab ; 107(6): e2438-e2448, 2022 05 17.
Artículo en Inglés | MEDLINE | ID: mdl-35176768

RESUMEN

CONTEXT: Individualized fracture risk may help to select patients requiring a pharmacological treatment for osteoporosis. FRAX and the Garvan fracture risk calculators are the most used tools, although their external validation has shown significant differences in their risk prediction ability. OBJECTIVE AND METHODS: Using data from the Fracture Risk Brussels Epidemiological Enquiry study, a cohort of 3560 postmenopausal women aged 60 to 85 years, we aimed to construct original 5-year fracture risk prediction models using validated clinical risk factors (CRFs). Three models of competing risk analysis were developed to predict major osteoporotic fractures (MOFs), all fractures, and central fractures (femoral neck, shoulder, clinical spine, pelvis, ribs, scapula, clavicle, sternum). RESULTS: Age, a history of fracture, and hip or spine BMD were predictors common to the 3 models. Excessive alcohol intake and the presence of comorbidities were specific additional CRFs for MOFs, a history of fall for all fractures, and rheumatoid arthritis for central fractures. Our models predicted the fracture probability at 5 years with an acceptable accuracy (Brier scores ≤ 0.1) and had a good discrimination power (area under the receiver operating curve of 0.73 for MOFs and 0.72 for central fractures) when internally validated by bootstrap. Three simple nomograms, integrating significant CRFs and the mortality risk, were constructed for different fracture sites. In conclusion, we derived 3 models predicting fractures with an acceptable accuracy, particularly for MOFs and central fractures. The models are based on a limited number of CRFs, and we constructed nomograms for use in clinical practice.


Asunto(s)
Fracturas de Cadera , Osteoporosis , Fracturas Osteoporóticas , Densidad Ósea , Femenino , Cuello Femoral , Humanos , Fracturas Osteoporóticas/epidemiología , Fracturas Osteoporóticas/etiología , Posmenopausia , Medición de Riesgo , Factores de Riesgo
16.
J Bone Miner Res ; 37(1): 59-67, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34490908

RESUMEN

Patients who sustain a fracture are at greatest risk of recurrent fracture during the next 2 years. We propose three models to identify subjects most at risk of an imminent fracture, according to fracture site (any fracture, major osteoporotic fracture [MOF] or central). They were constructed using data of the prospective Frisbee cohort, which includes 3560 postmenopausal women aged 60 to 85 years who were followed for at least 5 years. A total of 881 subjects had a first incident validated fragility fracture before December 2018. Among these, we validated 130 imminent fractures occurring within the next 2 years; 79 were MOFs, and 88 were central fractures. Clinical risk factors were re-evaluated at the time of the index fracture. Fine and Gray proportional hazard models were derived separately for each group of fractures. The following risk factors were significantly associated with the risk of any imminent fracture: total hip bone mineral density (BMD) (p < 0.001), a fall history (p < 0.001), and comorbidities (p = 0.03). Age (p = 0.05 and p = 0.03, respectively) and a central fracture as the index fracture (p = 0.04 and p = 0.005, respectively) were additional predictors of MOFs and central fractures. The three prediction models are presented as nomograms. The calibration curves and the Brier scores based on bootstrap resampling showed calibration scores of 0.089 for MOF, 0.094 for central fractures, and 0.132 for any fractures. The predictive accuracy of the models expressed as area under the receiver operating characteristic (AUROC) curve (AUC) were 0.74 for central fractures, 0.72 for MOFs, and 0.66 for all fractures, respectively. These AUCs compare well with those of FRAX and Garvan to predict the 5- or 10-year fracture probability. In summary, five predictors (BMD, age, comorbidities, falls, and central fracture as the incident fracture) allow the calculation with a reasonable accuracy of the imminent risk of fracture at different sites (MOF, central fracture, and any fracture) after a recent sentinel fracture. © 2021 American Society for Bone and Mineral Research (ASBMR).


Asunto(s)
Fracturas de Cadera , Osteoporosis , Fracturas Osteoporóticas , Anciano , Anciano de 80 o más Años , Densidad Ósea , Estudios de Cohortes , Femenino , Fracturas de Cadera/complicaciones , Humanos , Persona de Mediana Edad , Osteoporosis/complicaciones , Fracturas Osteoporóticas/epidemiología , Fracturas Osteoporóticas/etiología , Estudios Prospectivos , Medición de Riesgo , Factores de Riesgo
17.
Arch Osteoporos ; 18(1): 13, 2022 12 23.
Artículo en Inglés | MEDLINE | ID: mdl-36564674

RESUMEN

Five-year fracture risk prediction from the Fracture Risk Brussels Epidemiological Enquiry (FRISBEE) models was externally tested in 9716 Canadian women and demonstrated good discrimination but consistently overestimated risk. INTRODUCTION: Five-year risk prediction models for all fractures, major osteoporotic fractures (MOFs) and central fractures (proximal to forearm and ankle) from the FRISBEE cohort demonstrated good performance in the original derivation cohort. Our aim was to externally validate the FRISBEE-based 5-year prediction models in routine practice. METHODS: Using the population-based Manitoba Bone Mineral Density (BMD) registry, we identified women aged 60-85 years undergoing baseline BMD assessment from September 1, 2012 to March 31, 2018. Five-year probabilities of all fractures, MOFs and central fractures were calculated using the FRISBEE prediction models. We identified incident non-traumatic fractures up to 5 years from population-based healthcare data sources. Performance characteristics included area under the receiver operating characteristic curve (AUROC), gradient of risk (hazard ratio [HR] per SD increase and across risk tertiles) from Cox regression analysis, and calibration (ratio 5-year observed cumulative incidence to predicted fracture probability). RESULTS: We included 9716 women (mean age 70.7 + / - SD 5.3 years). During a mean observation time of 2.5 years, all fractures, MOFs and central fractures were identified in 377 (3.9%), 264 (2.7%) and 259 (2.7%) of the women. AUROC showed significant fracture risk stratification with the FRISBEE models (all fractures 0.69 [95%CI 0.67-0.72], MOFs 0.71 [95%CI 0.68-0.74], central fractures 0.72 [95%CI 0.69-0.75]). There was a strong gradient of risk for predicting fracture outcomes per SD increase (HRs from 1.98 to 2.26) and across risk tertiles (HRs for middle vs lowest from 2.25 to 2.41, HRs for highest vs lowest from 4.70 to 6.50). However, risk was overestimated for all fractures (calibration-in-the-large 0.63, calibration slope 0.63), MOF (calibration-in-the-large 0.51, calibration slope 0.57) and central fractures (calibration-in-the-large 0.55, calibration slope 0.60). CONCLUSIONS: FRISBEE 5-year prediction models were externally validated to stratify fracture risk similar to the derivation cohort, but would need recalibration for Canada as risk was overestimated.


Asunto(s)
Fracturas de Cadera , Fracturas Osteoporóticas , Humanos , Femenino , Anciano , Estudios de Cohortes , Canadá/epidemiología , Medición de Riesgo , Factores de Riesgo , Fracturas Osteoporóticas/epidemiología , Fracturas Osteoporóticas/etiología , Densidad Ósea , Sistema de Registros , Fracturas de Cadera/epidemiología
18.
Hum Vaccin ; 7(9): 913-8, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21892006

RESUMEN

BACKGROUND: Three doses of the investigational AS02(v)-adjuvanted hepatitis B virus (HBV) vaccine HB-AS02 have been shown to induce more rapid seroprotection and higher anti-HBs antibody concentrations in patients with renal insufficiency than four doses of FENDrix™ (HB-AS04), an adjuvanted HBV vaccine licensed in Europe for use in this population. This study evaluated persistence of immune response up to 36 months after primary vaccination. METHODS: In this open, international, Phase III follow-up study, 151 pre-dialysis, peritoneal dialysis and hemodialysis patients ≥15 years of age received HB-AS02 at 0, 1, 6 months and 149 received HB-AS04 at 0, 1, 2, 6 months. Of these, 99 and 80 returned at Month 36, 76 and 62 of whom were eligible for inclusion in the Long-Term According-To-Protocol (LT-ATP) cohort for descriptive analysis of antibody persistence (mean age: 65.6 years). RESULTS: At Month 36, 89.5% of subjects in the HB-AS02 group and 72.6% of those in the HB-AS04 group had anti-HBs antibody concentrations ≥10 mIU/ml. Anti-HBs antibody concentrations were ≥100 mIU/ml in 82.9% and 35.5% of subjects, respectively. Anti-HBs geometric mean antibody concentrations were higher in the HB-AS02 group over the 36 months of follow-up. An exploratory "time to boost" analysis confirmed that subjects who received HB-AS02 were 2.54 times more likely than those who received HB-AS04 to have anti-HBs antibody concentrations ≥10 mIU/ml at Month 36 (p=0.013 [95% CI: 1.22, 5.31]). CONCLUSION: HB-AS02 candidate vaccine induces high and persistent anti-HBs antibody levels in pre-dialysis, peritoneal dialysis and hemodialysis patients, potentially reducing the need for booster doses in this population.


Asunto(s)
Anticuerpos contra la Hepatitis B/sangre , Vacunas contra Hepatitis B/uso terapéutico , Hepatitis B/prevención & control , Lípido A/análogos & derivados , Insuficiencia Renal/sangre , Saponinas/uso terapéutico , Adyuvantes Inmunológicos/uso terapéutico , Anciano , Anciano de 80 o más Años , Combinación de Medicamentos , Femenino , Estudios de Seguimiento , Hepatitis B/inmunología , Anticuerpos contra la Hepatitis B/inmunología , Vacunas contra Hepatitis B/inmunología , Humanos , Internacionalidad , Lípido A/inmunología , Lípido A/uso terapéutico , Masculino , Persona de Mediana Edad , Prevención Primaria , Insuficiencia Renal/inmunología , Saponinas/inmunología , Terapias en Investigación , Vacunación/métodos
19.
Acta Neurol Belg ; 121(1): 219-223, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32931000

RESUMEN

We wanted to explore possible differences in disease presentation, frequency, and age of onset of dementia with Lewy bodies (DLB) between first-generation immigrants (FGI) and patients born in Belgium (PBIB). We conducted a retrospective study on all patients of our Memory Clinic between June 1, 2010 and January 31, 2020. A synucleinopathy was diagnosed in 150 of 2702 patients (5.5%): 91 received a diagnosis of DLB (3.4%). FGI were two times more likely to receive a diagnosis of DLB, due to a higher prevalence in North-Africans and Latin-Americans. Visual hallucinations were less frequent in North-Africans than in other immigrants. FGI were younger than PBIB and reported more often parasomnia. Our data suggest a higher risk for DLB in certain immigrant groups. Especially for North-African patients, a genetic factor can be suspected, namely mutations in Leucine-rich repeat kinase 2 (LRRK2). Memory clinics with a high rate of FGI may provide interesting data and insights into the prevalence of DLB, genetic and environmental differences.


Asunto(s)
Emigrantes e Inmigrantes/psicología , Enfermedad por Cuerpos de Lewy/etnología , Enfermedad por Cuerpos de Lewy/psicología , Trastornos de la Memoria/etnología , Trastornos de la Memoria/psicología , Servicio Ambulatorio en Hospital , África del Norte/etnología , Anciano , Anciano de 80 o más Años , Bélgica/etnología , Europa (Continente)/etnología , Femenino , Humanos , América Latina/etnología , Enfermedad por Cuerpos de Lewy/diagnóstico , Masculino , Trastornos de la Memoria/diagnóstico , Persona de Mediana Edad , Estudios Retrospectivos
20.
JBMR Plus ; 5(9): e10532, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34532617

RESUMEN

Probabilistic models including clinical risk factors with or without bone mineral density (BMD) have been developed to estimate the 5- or 10-year absolute fracture risk. We investigated the performance of the FRAX and Garvan tools in a well-characterized population-based cohort of 3560 postmenopausal, volunteer women, aged 60 to 85 years at baseline, included in the Fracture Risk Brussels Epidemiological Enquiry (FRISBEE) cohort, during 5 years of follow-up. Baseline data were used to calculate the estimated 10-year risk of hip and major osteoporotic fractures (MOFs) for each participant using FRAX (Belgium). We computed the 5-year risk according to the Garvan model with BMD. For calibration, the predicted risk of fracture was compared with fracture incidence across a large range of estimated fracture risks. The accuracy of the calculators to predict fractures was assessed using the area under the receiver operating characteristic curves (AUC). The FRAX tool was well calibrated for hip fractures (slope 1.09, p < 0.001; intercept -0.001, p = 0.46), but it consistently underestimated the incidence of major osteoporotic fractures (MOFs) (slope 2.12, p < 0.001; intercept -0.02, p = 0.06). The Garvan tool was well calibrated for "any Garvan" fractures (slope 1.05, p < 0.001; intercept 0.01, p = 0.37) but largely overestimated the observed hip fracture rate (slope 0.32, p < 0.001; intercept 0.006, p = 0.05). The predictive value for hip fractures was better for FRAX (AUC: 0.841, 95% confidence interval [CI] 0.795-0.887) than for Garvan (AUC: 0.769, 95% CI 0.702-0.836, p = 0.01). The Garvan AUC for "any Garvan" fractures was 0.721 (95% CI 0.693-0.749) and FRAX AUC for MOFs was 0.708 (95% CI 0.675-0.741). In conclusion, in our Belgian cohort, FRAX estimated quite well hip fractures but underestimated MOFs, while Garvan overestimated hip fracture risk but showed a good estimation of "any Garvan" fractures. Both models had a good discriminatory value for hip fractures but only a moderate discriminatory ability for MOFs or "any Garvan" fractures. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.

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