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1.
Nervenarzt ; 93(4): 368-376, 2022 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-34978578

RESUMEN

The acute treatment of stroke patients in Germany is of a very high standard, guaranteed by its system of stroke units. Stroke as a disease has an acute phase followed by a chronic phase that requires a high level of qualified aftercare given by multidisciplinary and interdisciplinary teams. In 2020, the German Stroke Society (DSG) founded a commission for long-term stroke care. The aim is to evaluate the current situation of long-term aftercare and suggest improvements for its structure. In this paper the status quo of aftercare is presented and possible deficits are identified. Contributions of various stakeholders from the German healthcare system are analyzed and different projects for post-acute care are presented. Germany has no acknowledged structured aftercare concepts for patients after stroke. The general practitioner-based care is currently the focus of patient management but without a greater, more coordinated integration of neurologists, guideline-led and quality-controlled aftercare will be harder to implement in the future. The assignment of duties and the necessary training standards for the specialist groups in order to comply with the guidelines do not exist. Besides medical health, the needs of physical, social and emotional domains are too seldom considered by a multiprofessional care team. Further developments of a regional care management concept are discussed. The results and costs of any aftercare concepts must be evaluated before widespread implementation.


Asunto(s)
Cuidados Posteriores , Accidente Cerebrovascular , Alemania , Humanos , Cuidados a Largo Plazo , Accidente Cerebrovascular/diagnóstico , Accidente Cerebrovascular/terapia
2.
Nervenarzt ; 93(4): 377-384, 2022 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-34932125

RESUMEN

Long-term management after stroke has not been standardized in contrast to acute and rehabilitative stroke care. The fragmented outpatient sector of healthcare allows a high degree of flexibility but also variability in the quality of care provided. The commission on long-term stroke care of the German Stroke Society developed a concept on how to provide standardized multiprofessional long-term stroke care with a focus on patient-centered comprehensive care. We propose a diagnostic work-up in stages, with an initial patient-reported screening, followed by an adapted in-depth assessment of affected domains. This includes internistic domains (management of risk factors) and also genuine neurological domains (spasticity, cognitive deficits etc.) that must be considered. This information is then merged with patient expectations and prioritization to a standardized treatment plan. Special challenges for the implementation of such a comprehensive care system are the intersectoral and intrasectoral communication between healthcare providers, patients and relatives, the need to create a compensation system for providers and the establishment of appropriate quality management services. Digital health applications are helpful tools to provide aspects of diagnostics, treatment and communication in long-term stroke care.


Asunto(s)
Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular , Cuidados Posteriores , Humanos , Cuidados a Largo Plazo , Pacientes Ambulatorios , Accidente Cerebrovascular/diagnóstico , Accidente Cerebrovascular/terapia
3.
BMC Neurol ; 16: 116, 2016 Jul 26.
Artículo en Inglés | MEDLINE | ID: mdl-27459854

RESUMEN

BACKGROUND: Improving cardiovascular health possibly decreases the risk of dementia. Primary care practices offer a suitable setting for monitoring and controlling cardiovascular risk factors in the older population. The purpose of the study is to examine the association of a cardiovascular health metric including six behaviors and blood parameters with the risk of dementia in primary care patients. METHODS: Participants (N = 3547) were insurants aged ≥55 of the largest German statutory health insurance company, who were enrolled in a six-year prospective population-based study. Smoking, physical activity, body mass index, blood pressure, total cholesterol, and fasting glucose were assessed by general practitioners at routine examinations. Using recommended cut-offs for each factor, the patients' cardiovascular health was classified as ideal, moderate, or poor. Behaviors and blood parameters sub-scores, as well as a total score, were calculated. Dementia diagnoses were retrieved from health insurance claims data. Results are presented as hazard ratios (HRs) and 95% confidence intervals (95% CIs). RESULTS: Over the course of the study 296 new cases of dementia occurred. Adjusted for age, sex, and education, current smoking (HR = 1.77, 95% CI 1.09-2.85), moderate (1.38, 1.05-1.81) or poor (1.81, 1.32-2.47) levels of physical activity, and poor fasting glucose levels (1.43, 1.02-2.02) were associated with an increased risk of dementia. Body mass index, blood pressure, and cholesterol were not associated with dementia. Separate summary scores for behaviors and blood values, as well as a total score showed no association with dementia. Sensitivity analyses with differently defined endpoints led to similar results. CONCLUSIONS: Due to complex relationships of body-mass index and blood pressure with dementia individual components cancelled each other out and rendered the sum-scores meaningless for the prediction of dementia.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Demencia/epidemiología , Atención Primaria de Salud/estadística & datos numéricos , Anciano , Glucemia/análisis , Presión Sanguínea/fisiología , Índice de Masa Corporal , Colesterol/sangre , Estudios de Cohortes , Escolaridad , Ejercicio Físico , Ayuno , Femenino , Predicción , Conductas Relacionadas con la Salud , Humanos , Masculino , Persona de Mediana Edad , Vigilancia de la Población , Estudios Prospectivos , Factores de Riesgo , Fumar/epidemiología
4.
Aging Ment Health ; 18(4): 515-20, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24256425

RESUMEN

OBJECTIVES: To map the suitability of the Six Item Cognitive Impairment Test's (6CIT) as a screening instrument for dementia in primary care and to assess its feasibility, reliability, and validity in a real-world setting. METHOD: The present study was part of a population-based prospective trial aimed at reducing the incidence of stroke and dementia. The 6CIT was administered by general practitioners (GPs) at routine examinations every two years. Incidence of dementia was obtained from health insurance records. Psychometric qualities of the 6CIT were evaluated for two different cut-offs. RESULTS: At baseline, 72 GPs examined 3908 patients. In total, 528 patients were diagnosed with new dementia. Less than 1% of the tests were not completed. Internal consistency (Cronbach's alpha), stability over time (Pearson's r), and the agreement between successive tests (Cohen's kappa) reached values of 0.58, 0.62, and 0.45, respectively. Sensitivity and specificity reached values of 0.49 and 0.92 at the 7/8 cut-off and of 0.32 and 0.98 at the 10/11 cut-off, respectively. Patients with dementia had significantly higher mean error scores than patients without dementia. High scores at baseline posed a more than fourfold risk of being diagnosed with dementia. CONCLUSION: The 6CIT's psychometric properties in a real-world setting suggest that the test is not suited as a routine screening instrument. Factors inherent to screening in primary care likely contributed to its low reliability and validity. This highlights the need for training GPs in the conduct of cognitive screening before such procedures can be implemented on a routine basis.


Asunto(s)
Demencia/diagnóstico , Medicina General/normas , Pruebas Neuropsicológicas/normas , Atención Primaria de Salud/normas , Anciano , Anciano de 80 o más Años , Demencia/epidemiología , Estudios de Factibilidad , Femenino , Estudios de Seguimiento , Medicina General/instrumentación , Alemania/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Atención Primaria de Salud/estadística & datos numéricos , Psicometría/instrumentación , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
5.
Lancet ; 379(9831): 2053-62, 2012 Jun 02.
Artículo en Inglés | MEDLINE | ID: mdl-22541275

RESUMEN

BACKGROUND: Carotid intima-media thickness (cIMT) is related to the risk of cardiovascular events in the general population. An association between changes in cIMT and cardiovascular risk is frequently assumed but has rarely been reported. Our aim was to test this association. METHODS: We identified general population studies that assessed cIMT at least twice and followed up participants for myocardial infarction, stroke, or death. The study teams collaborated in an individual participant data meta-analysis. Excluding individuals with previous myocardial infarction or stroke, we assessed the association between cIMT progression and the risk of cardiovascular events (myocardial infarction, stroke, vascular death, or a combination of these) for each study with Cox regression. The log hazard ratios (HRs) per SD difference were pooled by random effects meta-analysis. FINDINGS: Of 21 eligible studies, 16 with 36,984 participants were included. During a mean follow-up of 7·0 years, 1519 myocardial infarctions, 1339 strokes, and 2028 combined endpoints (myocardial infarction, stroke, vascular death) occurred. Yearly cIMT progression was derived from two ultrasound visits 2-7 years (median 4 years) apart. For mean common carotid artery intima-media thickness progression, the overall HR of the combined endpoint was 0·97 (95% CI 0·94-1·00) when adjusted for age, sex, and mean common carotid artery intima-media thickness, and 0·98 (0·95-1·01) when also adjusted for vascular risk factors. Although we detected no associations with cIMT progression in sensitivity analyses, the mean cIMT of the two ultrasound scans was positively and robustly associated with cardiovascular risk (HR for the combined endpoint 1·16, 95% CI 1·10-1·22, adjusted for age, sex, mean common carotid artery intima-media thickness progression, and vascular risk factors). In three studies including 3439 participants who had four ultrasound scans, cIMT progression did not correlate between occassions (reproducibility correlations between r=-0·06 and r=-0·02). INTERPRETATION: The association between cIMT progression assessed from two ultrasound scans and cardiovascular risk in the general population remains unproven. No conclusion can be derived for the use of cIMT progression as a surrogate in clinical trials. FUNDING: Deutsche Forschungsgemeinschaft.


Asunto(s)
Enfermedades Cardiovasculares/diagnóstico por imagen , Grosor Intima-Media Carotídeo , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/patología , Progresión de la Enfermedad , Estudios de Seguimiento , Humanos , Infarto del Miocardio/diagnóstico por imagen , Infarto del Miocardio/epidemiología , Infarto del Miocardio/patología , Pronóstico , Medición de Riesgo/métodos , Accidente Cerebrovascular/diagnóstico por imagen , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/patología
7.
Neurol Res Pract ; 5(1): 15, 2023 Apr 20.
Artículo en Inglés | MEDLINE | ID: mdl-37076927

RESUMEN

INTRODUCTION: In 2022 the DGN (Deutsche Gesellschaft für Neurologie) published an updated Transient Global Amnesia (TGA) guideline. TGA is characterized by a sudden onset of retrograde and anterograde amnesia for a period of one to a maximum of 24 h (with an average of 6 to 8 h). The incidence is estimated between 3 and 8 per 100,000 population/year. TGA is a disorder that occurs predominantly between 50 and 70 years. RECOMMENDATIONS: The diagnosis of TGA should be made clinically. In case of an atypical clinical presentation or suspicion of a possible differential diagnosis, further diagnostics should be performed immediately. The detection of typical unilateral or bilateral punctate DWI/T2 lesions in the hippocampus (especially the CA1 region) in a proportion of patients proves TGA. The sensitivity of MRI is considered higher when performed between 24 and 72 h after onset. If additional DWI changes occur outside the hippocampus, a vascular etiology should be considered, and prompt sonographic and cardiac diagnostics should be performed EEG may help to differentiate TGA from rare amnestic epileptic attacks, especially in recurrent amnestic attacks. TGA in patients < 50 years of age is a rarity, therefore it is mandatory to rapidly search for other causes in particular in younger patients. The cause of TGA is still unknown. Numerous findings in recent years point to a multifactorial genesis. Because the pathomechanism of TGA is not yet clearly known, no evidence-based therapeutic or prophylactic recommendations can be made. CONCLUSIONS: There is no evidence for chronic sequelae of TGA with respect to cerebral ischemia, chronic memory impairment, or the onset of dementia-related syndromes.

8.
Lancet Neurol ; 22(9): 787-799, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37459876

RESUMEN

BACKGROUND: Patients with ischaemic stroke are at risk of recurrent stroke. In this study, we aimed to compare the effect of a structured ambulatory post-stroke care programme versus usual care on recurrent vascular events and death and control of cardiovascular risk factors. METHODS: We did a prospective, open-label, cluster-randomised controlled trial (SANO) at stroke centres in regions of Germany. A cluster was defined as a region in which acute stroke care is provided by a participating stroke centre. Patients were eligible for participation if they were aged 18 years or older, had no severe disabilities before the index stroke (modified Rankin scale 0-1), had at least one modifiable cardiovascular risk factor, and presented within 14 days of symptom onset of their first ischaemic stroke. The participating regions were randomly assigned (1:1) to the intervention and control group (usual care) by the statistician using block randomisation (block sizes of six), stratified by rural and urban regions. In intervention regions, a cross-sectoral multidisciplinary network was established to provide a 1-year organisational and patient-centred intervention. Due to the type of intervention, masking of participants and study physicians was not possible. Endpoint adjudication was performed by an independent endpoint adjudication committee who were masked to cluster allocation. The primary endpoint was a composite of recurrent stroke, myocardial infarction, and all-cause death within 12 months after baseline assessment, assessed in the modified intention-to-treat (mITT) population, which included all patients who did not withdraw consent and completed the primary endpoint assessment at 12 months. This study was registered with the German Clinical Trials Register, DRKS00015322. FINDINGS: Between Jan 1, 2019 and Dec 22, 2020, 36 clusters were assessed for eligibility, of which 30 were randomly assigned to the intervention group (n=15 clusters) or control group (n=15 clusters). No clusters dropped out of the study. 1203 (86%) of 1396 enrolled patients in the intervention group and 1283 (92%) of 1395 enrolled patients in the control group were included in the mITT population. The primary endpoint was confirmed in 64 (5·3%) of 1203 patients in the intervention group and 80 (6·2%) of 1283 patients in the control group (unadjusted odds ratio [OR] 0·80 [95% CI 0·49-1·30]; adjusted OR [aOR] 0·95 [95% CI 0·54-1·67]). All-cause deaths occurred in 31 (2·4%) of 1203 patients in the intervention group and 12 (1·0%) of 1283 patients in the control group. The incidence of serious adverse events was higher in the intervention group (266 [23·1%] of 1151) than the control group (106 [9·2%] of 1152). Falls (134 [11·4%] of 1203 patients in the intervention group; 39 [3·3%] of 1152 patients in the control group), hypertensive crisis (55 [4·7%]; 34 [2·8%]), and diagnosis of depression (51 [4·3%]; 13 [1·1%]) were the most frequent adverse events in both groups. No differences were identified in the rate of readmission to hospital between groups. INTERPRETATION: No differences were identified between patients with ischaemic stroke in the intervention group and control group with regard to the incidence of vascular events 1 year after baseline assessment, despite positive effects with regard to the control of some cardiovascular risk factors. Longer-term effects and other potentially favourable effects on stroke-related sequelae and quality of life require further evaluation. FUNDING: Innovation Fund of the Federal Joint Committee.


Asunto(s)
Isquemia Encefálica , Accidente Cerebrovascular Isquémico , Accidente Cerebrovascular , Humanos , Accidente Cerebrovascular/tratamiento farmacológico , Isquemia Encefálica/epidemiología , Isquemia Encefálica/terapia , Isquemia Encefálica/complicaciones , Pacientes Ambulatorios , Cuidados Posteriores , Calidad de Vida , Estudios Prospectivos , Accidente Cerebrovascular Isquémico/complicaciones , Infarto Cerebral , Resultado del Tratamiento
9.
Eur Heart J Open ; 3(5): oead089, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37840587

RESUMEN

Aims: Current guidelines recommend measuring carotid intima-media thickness (IMT) at the far wall of the common carotid artery (CCA). We aimed to precisely quantify associations of near vs. far wall CCA-IMT with the risk for atherosclerotic cardiovascular disease (CVD, defined as coronary heart disease or stroke) and their added predictive values. Methods and results: We analysed individual records of 41 941 participants from 16 prospective studies in the Proof-ATHERO consortium {mean age 61 years [standard deviation (SD) = 11]; 53% female; 16% prior CVD}. Mean baseline values of near and far wall CCA-IMT were 0.83 (SD = 0.28) and 0.82 (SD = 0.27) mm, differed by a mean of 0.02 mm (95% limits of agreement: -0.40 to 0.43), and were moderately correlated [r = 0.44; 95% confidence interval (CI): 0.39-0.49). Over a median follow-up of 9.3 years, we recorded 10 423 CVD events. We pooled study-specific hazard ratios for CVD using random-effects meta-analysis. Near and far wall CCA-IMT values were approximately linearly associated with CVD risk. The respective hazard ratios per SD higher value were 1.18 (95% CI: 1.14-1.22; I² = 30.7%) and 1.20 (1.18-1.23; I² = 5.3%) when adjusted for age, sex, and prior CVD and 1.09 (1.07-1.12; I² = 8.4%) and 1.14 (1.12-1.16; I²=1.3%) upon multivariable adjustment (all P < 0.001). Assessing CCA-IMT at both walls provided a greater C-index improvement than assessing CCA-IMT at one wall only [+0.0046 vs. +0.0023 for near (P < 0.001), +0.0037 for far wall (P = 0.006)]. Conclusions: The associations of near and far wall CCA-IMT with incident CVD were positive, approximately linear, and similarly strong. Improvement in risk discrimination was highest when CCA-IMT was measured at both walls.

10.
Am J Nephrol ; 35(5): 474-82, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22555151

RESUMEN

BACKGROUND: Chronic kidney disease (CKD) has emerged as a possible new risk factor of cognitive impairment and dementia, but results of studies remain conflicting. METHODS: A systematic literature research of electronic databases (MEDLINE, Cochrane Library and Goggle Scholar covering the period from 1980 to January 2012) and meta-analysis of relevant cross-sectional and longitudinal studies were conducted to assess the association of CKD and cognitive decline. RESULTS: Most cross-sectional and longitudinal studies suggest an association between cognitive impairment and CKD. Meta-analysis of cross-sectional and longitudinal studies comprising 54,779 participants yielded an association of cognitive decline in patients with CKD compared with patients without CKD (OR 1.65, 95% CI 1.32-2.05; p < 0.001, and OR 1.39, 95% CI 1.15-1.68; p < 0.001, respectively). CONCLUSION: This is the first meta-analysis assessing the impact of CKD on cognitive decline. Our results suggest CKD being a significant and independent somatic risk factor in the development of cognitive decline.


Asunto(s)
Trastornos del Conocimiento/epidemiología , Insuficiencia Renal Crónica/epidemiología , Demencia/epidemiología , Humanos , Factores de Riesgo
11.
Dement Geriatr Cogn Disord ; 33(5): 297-305, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22759681

RESUMEN

BACKGROUND: Recent preventive strategies for patients with cognitive impairment include the identification of modifiable somatic risk factors like vitamin D deficiency. METHODS: A systematic literature research and meta-analysis were conducted to assess the association of cognitive impairment and vitamin D deficiency. RESULTS: Data from cross-sectional and longitudinal studies suggest an association between cognitive impairment and vitamin D deficiency. Meta-analysis of 5 cross-sectional and 2 longitudinal studies comprising 7,688 participants showed an increased risk of cognitive impairment in those with low vitamin D compared with normal vitamin D (OR 2.39, 95% CI 1.91-3.00; p < 0.0001). CONCLUSIONS: Methodological limitations of these studies comprise heterogeneity of study populations, different forms of cognitive assessment, the problem of reverse causality, different definitions of vitamin D deficiency and inconsistent control for confounders. As the value of vitamin D substitution in cognitive impairment remains doubtful, a long-time major placebo-controlled randomized trial of vitamin D supplementation in participants with mild cognitive impairment (MCI) should be started.


Asunto(s)
Disfunción Cognitiva/fisiopatología , Demencia/prevención & control , Deficiencia de Vitamina D/fisiopatología , Vitamina D/metabolismo , Disfunción Cognitiva/etiología , Demencia/etiología , Humanos , Factores de Riesgo , Vitamina D/uso terapéutico
12.
BMC Neurol ; 12: 102, 2012 Sep 24.
Artículo en Inglés | MEDLINE | ID: mdl-23007013

RESUMEN

BACKGROUND: Patients in neurologic in-patient rehabilitation are at risk of cardio- and cerebrovascular events. Microalbuminuria (MAU) is frequent and an important risk predictor but has not been validated in in-patient rehabilitation. We therefore aimed to examine MAU as an indicator of risk and predictor of vascular events in a prospective study. METHODS: The INSIGHT (INvestigation of patients with ischemic Stroke In neuroloGic reHabiliTation) registry is the first to provide large scale data on 1,167 patients with acute stroke (< 3 months) that survived the initial phase of high risk and were undergoing neurologic in-patient rehabilitation. MAU was determined by dipstick-testing and correlated to baseline clinical variables (stroke-origin, functional impairment, co-morbidity, ankle-brachial-index, intima-media-thickeness) as well as vascular events after one year of follow-up. Comparisons were made with the χ2 or Mann-Whitney-U Test. Relative risks (RR) with 95% confidence intervals (CI) were estimated using log-binominal models. To evaluate the association between MAU and new vascular events as well as mortality, we calculated hazard ratios (HR) using Cox proportional hazard regression. RESULTS: A substantial proportion of patients was MAU positive at baseline (33.1%). Upon univariate analysis these patients were about 4 years older (69 vs. 65 years; p < 0.0001), had a slightly higher body mass index (27.8 vs. 27.1 kg/m2; p = 0.03) and increased waist circumference (79.5 vs. 50.4% for women [p < 0.0001] and 46.8 vs. 43.2% for men [p = 0.04]) and twice as often had diabetes mellitus (41.8 vs. 20.1%; p < 0.0001). Patients with MAU had a similar NIH stroke scale score (median 3 vs. 3; p = 0.379) but had lower values on the Barthel Index (median 75 vs. 90; p < 0.001). They had higher rates of atrial fibrillation (RR 1.38; 95% CI 1.09-1.75), coronary artery disease (RR 1.54; 95% CI 1.18-2.00), heart failure (RR 1.70; 95% CI 1.10-2.60) symptomatic peripheral artery disease (RR 2.30; 95% CI 1.40-3.80) and atherosclerotic stroke etiology (53.7 vs. 35.4%; p < 0.0001). MAU was associated with an increased intima-media-thickness, decreased ankle-brachial-index and polyvascular disease (RR 1.56; 95%CI 1.31-1.99). The event rate after a median follow-up of 13 months was 6.7% for fatal or nonfatal stroke, 4.7% for death, and 10.9% for combined vascular events (stroke, MI, vascular death). The presence of MAU was predictive for vascular events during the following year (HR for total mortality 2.2; 95% CI 1.3-3.7; HR for cardiovascular events 2.3; 95% 1.2 - 4.4). CONCLUSIONS: INSIGHT demonstrated a significant association between MAU and polyvascular disease and further supports previous findings that MAU predicts cardio-/cerebrovascular events in patients recovering from ischemic stroke. This biomarker may also be used in patients during neurologic in-patient rehabilitation, opening a window of opportunity for early intervention in this patient group at increased risk for recurrent events.


Asunto(s)
Albuminuria/epidemiología , Trastornos Cerebrovasculares/epidemiología , Trastornos Cerebrovasculares/prevención & control , Sistema de Registros , Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular/epidemiología , Distribución por Edad , Anciano , Comorbilidad , Femenino , Alemania/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Medición de Riesgo , Factores de Riesgo , Distribución por Sexo , Resultado del Tratamiento
13.
Phys Rev Lett ; 107(18): 187201, 2011 Oct 28.
Artículo en Inglés | MEDLINE | ID: mdl-22107667

RESUMEN

We investigate the local tunnel magnetoresistance (TMR) effect within a single Co nanoisland using spin-polarized scanning tunneling microscopy. We observe a clear spatial modulation of the TMR ratio with an amplitude of ~20% and a spacing of ~1.3 nm between maxima and minima around the Fermi level. This result can be ascribed to a spatially modulated spin polarization within the Co island due to spin-dependent quantum interference. Our combined experimental and theoretical study reveals that spin-dependent electron confinement affects all transport properties such as differential conductance, conductance, and TMR. We demonstrate that the TMR within a nanostructured magnetic tunnel junction can be controlled on a length scale of 1 nm through spin-dependent quantum interference.

14.
Nephrol Dial Transplant ; 26(3): 927-32, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20670957

RESUMEN

BACKGROUND: Limited data exist regarding the relationship between kidney function and incident asymptomatic peripheral arterial disease (PAD). METHODS: The study population consisted of 2881 participants of the Intervention Project on Cerebrovascular Diseases and Dementia in the Community of Ebersberg, Bavaria, a community-based cohort of elderly individuals. Kidney function was calculated as creatinine clearance (Ccr) estimated by the Cockcroft-Gault formula. Incident PAD was defined as a new onset of ankle-brachial index < 0.9 assessed at regular examinations among those with an ankle brachial pressure index (ABPI) ≥ 0.9 at baseline. Relative risks (RR) for PAD were compared across declining kidney function quartiles. RESULTS: Mean serum concentration of creatinine and Ccr were 0.82 ± 0.31 mg/dL and 78 ± 21 mL/min/1.73 m(2). After 6 years of follow-up, 478 (17%) participants developed incident asymptomatic PAD. After adjustment for demographic factors and cardiovascular risk factors, lower Ccr quartiles were directly associated with a higher risk of PAD. Compared with participants in quartile 1 (> 89 mL/min/1.73 m(2)), the adjusted RR (95% CI) for PAD were 1.01 (0.88-1.19) for quartile 2 (75-89 mL/min/1.73 m(2)), 1.05 (0.93-1.23) for quartile 3 (64-75 mL/min/1.73 m(2)) and 1.10 (1.01-1.44) for quartile 4 (< 64 mL/min/1.73 m(2); P = 0.009 for trend). Cardiovascular events as a function of baseline Ccr and incident PAD showed that most vascular events occurred in participants with Ccr < 60 mL/min/1.73 m(2) at baseline and incident PAD (log-rank test, P = 0.0018). CONCLUSIONS: Lower kidney function is associated with incident asymptomatic PAD. In addition, the combination of impaired kidney function and incident PAD better predicts cardiovascular outcomes.


Asunto(s)
Fallo Renal Crónico/complicaciones , Enfermedad Arterial Periférica/diagnóstico , Enfermedad Arterial Periférica/etiología , Anciano , Estudios de Cohortes , Creatinina/sangre , Femenino , Estudios de Seguimiento , Tasa de Filtración Glomerular , Humanos , Pruebas de Función Renal , Masculino , Estudios Prospectivos , Factores de Riesgo , Tasa de Supervivencia
15.
Cerebrovasc Dis ; 31(4): 315-21, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21212662

RESUMEN

Stroke patients are at high risk of secondary vascular events. Although in the short term the risk of experiencing a second stroke is high, in the long term patients are more likely to have myocardial infarction. Many stroke patients have also developed polyvascular disease in the form of coronary artery disease and peripheral arterial disease, which is a marker of increased morbidity and mortality in patients with non-cardioembolic ischemic stroke. Despite the high risk of events in these patients, current evidence-based guidelines make very few recommendations that address the need to detect and manage polyvascular disease following a stroke. Optimised Stroke Care for Re-Admission Reduction in Europe (OSCARE) is an initiative that has been set up to address some of these shortcomings.


Asunto(s)
Enfermedad de la Arteria Coronaria/terapia , Enfermedad Arterial Periférica/terapia , Accidente Cerebrovascular/terapia , Enfermedad de la Arteria Coronaria/complicaciones , Enfermedad de la Arteria Coronaria/diagnóstico , Enfermedad de la Arteria Coronaria/mortalidad , Medicina Basada en la Evidencia , Humanos , Enfermedad Arterial Periférica/complicaciones , Enfermedad Arterial Periférica/diagnóstico , Enfermedad Arterial Periférica/mortalidad , Guías de Práctica Clínica como Asunto , Calidad de la Atención de Salud , Medición de Riesgo , Factores de Riesgo , Prevención Secundaria , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/diagnóstico , Accidente Cerebrovascular/mortalidad , Accidente Cerebrovascular/prevención & control , Factores de Tiempo , Resultado del Tratamiento
16.
Dtsch Med Wochenschr ; 146(7): 432-436, 2021 04.
Artículo en Alemán | MEDLINE | ID: mdl-33780986

RESUMEN

In industrialized countries, stroke is still the most common disease that leads to permanent disability. Of the 250 000 strokes that occur annually in Germany, in about 80 % are cerebral ischemia. Approximately 15 % of these ischemias are caused by lesions of the extracranial internal carotid artery, so optimal treatment of extracranial carotid stenosis is essential 1. This continues to be the subject of a controversial debate, as optimized drug therapy has led to a significant reduction in risk.In 2020, the multidisciplinary S3 guideline for the management of extracranial carotid stenoses was updated. In the following, current aspects and new recommendations for asymptomatic carotid stenosis are presented and important innovations of the guideline are explained.


Asunto(s)
Estenosis Carotídea/complicaciones , Estenosis Carotídea/terapia , Accidente Cerebrovascular/prevención & control , Alemania , Humanos , Guías de Práctica Clínica como Asunto , Accidente Cerebrovascular/etiología
17.
Eur Stroke J ; 6(2): 213-221, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34414297

RESUMEN

INTRODUCTION: Previous studies showed insufficient control of cardiovascular risk factors (CVRF) and high stroke recurrence rates among ischemic stroke patients in Germany. Currently, no structured secondary prevention program exists in clinical routine. We present the trial design and pilot phase results of a complex intervention to improve stroke care after hospital discharge in Germany. PATIENTS AND METHODS: SANO is a cluster-randomized trial with 30 participating regions across Germany aiming to enrol 2,790 patients (drks.de, DRKS00015322). Study intervention combines both structural and patient-centred elements. Study development was based on the Medical Research Council framework for complex interventions. In 15 intervention regions, a cross-sectoral multidisciplinary network is established to enhance CVRF control as well as detection and treatment of post-stroke complications. Recommendations on CVRF are based on high-quality secondary prevention guidelines. Study physicians use motivational interviewing and agree with patients on therapeutic targets. While hospitalised, patients also receive dietary counselling and a health-passport to track their progress. During regular visits, CVRF management and potential complications are monitored. The intervention is compared to 15 regions providing usual care. The primary endpoint is the combination of recurrent stroke, myocardial infarction and death assessed 12 months after enrolment and adjudicated in a blinded manner. RESULTS: Eighteen patients were enrolled in a pilot phase that demonstrated feasibility of patient recruitment and study procedures. CONCLUSION: SANO is investigating a program to reduce outcome events after ischemic stroke by implementing a complex intervention. If successful, the program may be implemented in routine care on national level in Germany.

18.
Kidney Int ; 77(9): 794-800, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20130527

RESUMEN

To examine the relationship between systolic blood pressure and progression of carotid intima-media thickness in patients with chronic kidney disease (CKD), we studied 3364 patients from a community-based cohort of elderly individuals of whom 724 had CKD defined as creatinine clearances of stage 3 or less. The contribution of systolic blood pressure was evaluated in four ranges (<120, 120-129, 130-139, and > or = 140 mm Hg). All multiple linear regression analyses were adjusted for traditional and nontraditional cardiovascular risk factors. The higher ranges of systolic blood pressure at baseline were associated with a greater carotid intima-media thickness at the initiation of the study in patients with or without CKD. Covariate-adjusted averages of carotid intima-media thickness at the initiation of the study in patients with CKD significantly increased across the four strata of systolic blood pressure. Higher systolic blood pressure at baseline was associated with a significantly greater yearly change in covariate-adjusted mean carotid intima-media thickness and vascular events in patients with CKD over a 4-year follow-up period.


Asunto(s)
Hipertensión/complicaciones , Anciano , Presión Sanguínea , Enfermedades Cardiovasculares/complicaciones , Sistema Cardiovascular , Progresión de la Enfermedad , Femenino , Humanos , Hipertensión/tratamiento farmacológico , Fallo Renal Crónico/complicaciones , Pruebas de Función Renal , Masculino , Insuficiencia Renal Crónica/complicaciones , Sístole , Túnica Íntima/anatomía & histología , Túnica Media/anatomía & histología
19.
Am Heart J ; 159(5): 730-736.e2, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-20435179

RESUMEN

Carotid intima media thickness (IMT) progression is increasingly used as a surrogate for vascular risk. This use is supported by data from a few clinical trials investigating statins, but established criteria of surrogacy are only partially fulfilled. To provide a valid basis for the use of IMT progression as a study end point, we are performing a 3-step meta-analysis project based on individual participant data. Objectives of the 3 successive stages are to investigate (1) whether IMT progression prospectively predicts myocardial infarction, stroke, or death in population-based samples; (2) whether it does so in prevalent disease cohorts; and (3) whether interventions affecting IMT progression predict a therapeutic effect on clinical end points. Recruitment strategies, inclusion criteria, and estimates of the expected numbers of eligible studies are presented along with a detailed analysis plan.


Asunto(s)
Arterias Carótidas/patología , Metaanálisis como Asunto , Medición de Riesgo/métodos , Túnica Íntima/patología , Enfermedades de las Arterias Carótidas/epidemiología , Humanos , Estudios Multicéntricos como Asunto , Infarto del Miocardio/epidemiología , Valor Predictivo de las Pruebas , Proyectos de Investigación , Accidente Cerebrovascular/epidemiología
20.
BMC Neurol ; 10: 50, 2010 Jun 21.
Artículo en Inglés | MEDLINE | ID: mdl-20565966

RESUMEN

BACKGROUND: Transient ischemic attack (TIA) patients are at a high vascular risk. Recently the ABCD2 score was validated for evaluating short-term stroke risk after TIA. We assessed the value of this score to predict the vascular outcome after TIA during medium- to long-term follow-up. METHODS: The ABCD2 score of 176 TIA patients consecutively admitted to the Stroke Unit was retrospectively calculated and stratified into three categories. TIA was defined as an acute transient focal neurological deficit caused by vascular disease and being completely reversible within 24 hours. All patients had to undergo cerebral MRI within 5 days after onset of symptoms as well as extracranial and transcranial Doppler and duplex ultrasonography. At a median follow-up of 27 months, new vascular events were recorded. Multivariate Cox regression adjusted for EDC findings and heart failure was performed for the combined endpoint of cerebral ischemic events, cardiac ischemic events and death of vascular or unknown cause. RESULTS: Fifty-five patients (32.0%) had an ABCD2 score < or = 3, 80 patients (46.5%) had an ABCD2 score of 4-5 points and 37 patients (21.5%) had an ABCD2 score of 6-7 points. Follow-up data were available in 173 (98.3%) patients. Twenty-two patients (13.8%) experienced an ischemic stroke or TIA; 5 (3.0%) a myocardial infarction or acute coronary syndrome; 10 (5.7%) died of vascular or unknown cause; and 5 (3.0%) patients underwent arterial revascularization. An ABCD2 score > 3 was significantly associated with the combined endpoint of cerebral or cardiovascular ischemic events, and death of vascular or unknown cause (hazard ratio (HR) 4.01, 95% confidence interval (CI) 1.21 to 13.27). After adjustment for extracranial ultrasonographic findings and heart failure, there was still a strong trend (HR 3.13, 95% CI 0.94 to 10.49). Whereas new cardiovascular ischemic events occurred in 9 (8.3%) patients with an ABCD2 score > 3, this happened in none of the 53 patients with a score < or = 3. CONCLUSIONS: An ABCD2 score > 3 is associated with an increased general risk for vascular events in the medium- to long-term follow-up after TIA.


Asunto(s)
Ataque Isquémico Transitorio/diagnóstico , Encéfalo/patología , Trastornos Cerebrovasculares/complicaciones , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Ataque Isquémico Transitorio/mortalidad , Ataque Isquémico Transitorio/patología , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Riesgo , Factores de Tiempo , Ultrasonografía Doppler Transcraneal
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