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1.
Eur Stroke J ; 9(1): 5-68, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38380638

RESUMO

A quarter of ischaemic strokes are lacunar subtype, typically neurologically mild, usually resulting from intrinsic cerebral small vessel pathology, with risk factor profiles and outcome rates differing from other stroke subtypes. This European Stroke Organisation (ESO) guideline provides evidence-based recommendations to assist with clinical decisions about management of lacunar ischaemic stroke to prevent adverse clinical outcomes. The guideline was developed according to ESO standard operating procedures and Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology. We addressed acute treatment (including progressive lacunar stroke) and secondary prevention in lacunar ischaemic stroke, and prioritised the interventions of thrombolysis, antiplatelet drugs, blood pressure lowering, lipid lowering, lifestyle, and other interventions and their potential effects on the clinical outcomes recurrent stroke, dependency, major adverse cardiovascular events, death, cognitive decline, mobility, gait, or mood disorders. We systematically reviewed the literature, assessed the evidence and where feasible formulated evidence-based recommendations, and expert concensus statements. We found little direct evidence, mostly of low quality. We recommend that patients with suspected acute lacunar ischaemic stroke receive intravenous alteplase, antiplatelet drugs and avoid blood pressure lowering according to current acute ischaemic stroke guidelines. For secondary prevention, we recommend single antiplatelet treatment long-term, blood pressure control, and lipid lowering according to current guidelines. We recommend smoking cessation, regular exercise, other healthy lifestyle modifications, and avoid obesity for general health benefits. We cannot make any recommendation concerning progressive stroke or other drugs. Large randomised controlled trials with clinically important endpoints, including cognitive endpoints, are a priority for lacunar ischaemic stroke.


Assuntos
Isquemia Encefálica , Doenças de Pequenos Vasos Cerebrais , Acidente Vascular Cerebral Lacunar , Acidente Vascular Cerebral , Humanos , Isquemia Encefálica/complicações , Doenças de Pequenos Vasos Cerebrais/complicações , Lipídeos , Inibidores da Agregação Plaquetária/uso terapêutico , Acidente Vascular Cerebral/prevenção & controle , Acidente Vascular Cerebral Lacunar/terapia
2.
BMC Neurol ; 24(1): 76, 2024 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-38408935

RESUMO

BACKGROUND: Although attention deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder, its aetiology remains unclear. We aimed to establish a relationship between ADHD diagnosis and serum levels of glucose, free thyroxine (FT4), and thyroid stimulating hormone (TSH) in primary school aged boys. METHODS: In a cross-sectional study, we enrolled 133 participants aged 6.5-12.5 years, 67 of whom met DSM-5 criteria for ADHD and 66 healthy age-matched boys. The ADHDT test (ADHDT) was used to assess ADHD symptoms and the Wechsler Intelligence Scale for Children - Revised was used to exclude participants with cognitive deficits. The ADHD participants were tested using the Iowa Conners' Teacher Rating Scale. RESULTS: The ADHD participants had lower glucose levels, higher TSH values, and significantly lower FT4 values than the control group. The multiple logistic regression analysis showed that TSH is a parameter that is 2.7% more likely to occur in the ADHD group. We found a significant correlation between the TSH level and the symptoms of hyperactivity (r = 0.318, p = 0.009) and impulsivity (r = 0.275, p = 0.024) as well as between the glucose level and the symptoms of hyperactivity (r = 0.312, p = 0.010). CONCLUSIONS: Certain ADHD symptoms may correlate with certain hormonal patterns. Our results suggest that the likelihood of suffering from ADHD was lower when FT4 levels were elevated. One biochemical parameter that was significantly and independently associated with the diagnosis of ADHD was the serum TSH level. TRIAL REGISTRATION: On June 26, 2018, at its VI session in 2018, the Ethics Committee of the Institute for Mental Health in Belgrade, Serbia, has considered and unanimously approved the conduct of the research, under the number 1704/1.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Tiroxina , Masculino , Criança , Humanos , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Estudos Transversais , Projetos Piloto , Tireotropina , Glucose
4.
Sci Rep ; 10(1): 6359, 2020 04 14.
Artigo em Inglês | MEDLINE | ID: mdl-32286443

RESUMO

Remodelling of collagen fibers has been described during every phase of cancer genesis and progression. Changes in morphology and organization of collagen fibers contribute to the formation of microenvironment that favors cancer progression and development of metastasis. However, there are only few data about remodelling of collagen fibers in healthy looking mucosa distant from the cancer. Using SHG imaging, electron microscopy and specialized softwares (CT-FIRE, CurveAlign and FiberFit), we objectively visualized and quantified changes in morphology and organization of collagen fibers and investigated possible causes of collagen remodelling (change in syntheses, degradation and collagen cross-linking) in the colon mucosa 10 cm and 20 cm away from the cancer in comparison with healthy mucosa. We showed that in the lamina propria this far from the colon cancer, there were changes in collagen architecture (width, straightness, alignment of collagen fibers and collagen molecules inside fibers), increased representation of myofibroblasts and increase expression of collagen-remodelling enzymes (LOX and MMP2). Thus, the changes in organization of collagen fibers, which were already described in the cancer microenvironment, also exist in the mucosa far from the cancer, but smaller in magnitude.


Assuntos
Colágeno/metabolismo , Neoplasias do Colo/metabolismo , Metaloproteinase 2 da Matriz/genética , Proteína-Lisina 6-Oxidase/genética , Idoso , Colágeno/ultraestrutura , Colo/metabolismo , Colo/ultraestrutura , Neoplasias do Colo/genética , Neoplasias do Colo/patologia , Neoplasias do Colo/ultraestrutura , Progressão da Doença , Matriz Extracelular/patologia , Matriz Extracelular/ultraestrutura , Feminino , Regulação Neoplásica da Expressão Gênica/genética , Humanos , Mucosa Intestinal/patologia , Mucosa Intestinal/ultraestrutura , Masculino , Microscopia Eletrônica , Software , Microambiente Tumoral/genética
5.
J Clin Hypertens (Greenwich) ; 20(9): 1260-1265, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-30058256

RESUMO

Although cerebral small vessel disease (SVD) is traditionally associated with aging and hypertension (HT), there are patients exhibiting sporadic SVD, free of HT. We aimed to investigate the differences in clinical and neuroradiological presentation in SVD patients in reference to the presence of HT as a risk factor (RF). Vascular RF, cognitive and functional status were evaluated in a cohort of 424 patients. Patients were classified in two groups based on the presence of HT. Severity of vascular lesions was assessed using 1.5 T magnetic resonance imaging with Age-Related White Matter Changes scale total score (tARWMC) and Fazekas scale periventricular (PV) and deep subcortical (DS) scores. No difference between groups in age and sex distribution was noted. In univariate analysis, HT was associated with vascular cognitive impairment (vCI) (OR 2.30, 1.53-3.45, P < 0.0001), functional status (OR 1.47, 1.11-1.95, P = 0.007), depression (OR 2.13, 1.23-3.70, P = 0.007), tARWMC (OR 1.10, 1.05-1.16 95% CI, P < 0.0001), Fazekas PV score (OR 1.34, 1.08-1.67 95% CI, P = 0.008), Fazekas DS score (OR 1.95, 1.44-2.63 95% CI, P < 0.0001) and total number of lacunes (OR 1.10, 1.02-1.18 95% CI, P = 0.009). Multivariate logistic regression analysis indicated that HT was an independent RF for vCI (OR 1.74, 1.09-2.76 95% CI, P = 0.020) and higher Fazekas DS score (OR 1.57, 1.11-2.22 95% CI, P = 0.011). The Kaplan-Meier curve of estimates of survival of SVD patients without vCI revealed a higher proportion of patients with HT progressing to vCI over time when compared to HT-free cases. In patients with sporadic SVD, HT is a contributing factor to worse clinical outcomes and neuroradiological presentation.


Assuntos
Doenças de Pequenos Vasos Cerebrais/diagnóstico por imagem , Disfunção Cognitiva/diagnóstico por imagem , Hipertensão/complicações , Idoso , Encéfalo/diagnóstico por imagem , Doenças de Pequenos Vasos Cerebrais/mortalidade , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/mortalidade , Feminino , Humanos , Hipertensão/mortalidade , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Análise de Sobrevida
6.
J Ultrasound Med ; 37(2): 479-486, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28850691

RESUMO

OBJECTIVES: Structural changes and metabolic stress have been reported on diffusion-weighted magnetic resonance imaging in the cornu ammonis 1 area of the hippocampus in patients with transient global amnesia (TGA), but a consensus on pathogenesis is still lacking. The aim of our study was to perform a comprehensive ultrasound analysis of the cerebrovascular circulation in our population of patients with TGA. METHODS: One hundred patients with TGA and 50 age- and sex-matched control participants underwent ultrasound examinations of the cervicocranial circulation. RESULTS: The most significant risk factor for TGA was arterial hypertension (P < .01). There were no significant atherosclerotic lesions on the large arteries of the neck (mean internal carotid artery stenosis ± SD, 28.7% ± 11.7%) or on the large intracerebral arteries (good structural and hemodynamic status; P > .05). Rarely detected microembolic signals or a right-left cardiopulmonary shunt excluded an emboligenic mechanism of TGA (P > .05). The internal jugular vein valves were incompetent in 54% of patients with TGA, and this condition was associated with an increased risk of TGA (odds ratio, 4.16; 95% confidence interval, 1.91-9.04). The mean values of the breath holding index and pulsatility index, as parameters of small-vessel function, were within normal ranges and without differences between the TGA and control groups (P > .05). CONCLUSIONS: Our ultrasound examination did not detect significant structural atherosclerotic changes of cervicocranial arteries, and an emboligenic mechanism was excluded. Only a significant rise of blood pressure in TGA and significant valvular insufficiency of the internal jugular vein were established. New research should clarify whether these simultaneous functional circulatory changes have relevance for metabolic stress in the cornu ammonis of the hippocampus.


Assuntos
Amnésia Global Transitória/diagnóstico por imagem , Amnésia Global Transitória/fisiopatologia , Circulação Cerebrovascular/fisiologia , Hipocampo/diagnóstico por imagem , Hipocampo/fisiopatologia , Ultrassonografia/métodos , Feminino , Humanos , Veias Jugulares/diagnóstico por imagem , Veias Jugulares/fisiopatologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco
7.
Biomed Res Int ; 2017: 5489057, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28424785

RESUMO

We explored the relationship between acute ischaemic stroke (IS) early functional outcome and serum levels of homocysteine, vitamin B12, and D in a noninterventional prospective clinical study. We enrolled 50 patients with first-ever IS and performed laboratory tests and functional assessment at three time points: on admission and three and six months after stroke. Modified Rankin Scale (mRS), NIHSS scale, and Barthel index (BI) scores were assessed in all participants by trained examiner blinded to laboratory data. Patients did not receive treatment that might alter laboratory data. Admission NIHSS correlated with homocysteine levels (r = 0.304, p < 0.05), B12 level (r = -0.410, p < 0.01), and vitamin D levels (r = -0.465, p < 0.01). Functional outcome measures (BI and mRS) did not significantly correlate with homocysteine and vitamin D3 levels at 3 and 6 months. However, a positive correlation with vitamin B12 levels was detected for BI both at 3 and 6 months and mRS at 6 months. Higher serum vitamin B12 levels were associated with better functional outcome at follow-up.


Assuntos
Isquemia Encefálica/sangue , Isquemia Encefálica/complicações , Homocisteína/sangue , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/sangue , Acidente Vascular Cerebral/complicações , Vitamina B 12/sangue , Vitamina D/sangue , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
8.
Vojnosanit Pregl ; 73(3): 293-5, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27295918

RESUMO

INTRODUCTION: Leptomeningeal carcinomatosis (LC) is a serious complication occuring in solid cancer patients with rather poor prognosis. CASE REPORT: We presented a 47-year-old woman with the 6-month history of diffuse headache, nausea and visual obscuration. Initially, clinical status and brain magnetic resonance imaging (MRI) indicated syndrome of idiopathic intracranial hypertension. Due to clinical progression and high papillary stasis, cerebrospinal fluid (CSF) examination was performed only after ventriculoperitoneal shunt was implanted. This led to a significant although transient clinical improvement. Futher investigations led to the diagnosis of invasive lobular breast carcinoma and repeated CSF analysis revealed malignant breast carcinoma cells. In this case LC was an initial presentation of a malignant-disease. CONCLUSION: In the presence of a high clinical suspicion of LC, in spite of initially negative findings, a clinician should persist in repeating relevant tests, such are MRI with larger amounts of gadolinium and high-volume cytological CSF analyses in order to make the diagnosis.


Assuntos
Neoplasias da Mama/diagnóstico , Carcinoma Lobular/diagnóstico , Carcinomatose Meníngea/diagnóstico , Neoplasias da Mama/patologia , Carcinoma Lobular/secundário , Feminino , Humanos , Carcinomatose Meníngea/secundário , Pessoa de Meia-Idade
9.
Srp Arh Celok Lek ; 144(1-2): 6-9, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27276851

RESUMO

INTRODUCTION: Cerebral ischemic small-vessel disease (SVD), causing lacunar infarcts and white matter hyperintensities on brain magnetic resonance imaging (MRI), is a progressive disease associated with an increased risk of stroke, dementia and death. Increased arterial stiffness has been associated with ischemic stroke and cerebral SVD independently of common vascular risk factors. OBJECTIVE: The aim of the study was to analyze arterial stiffness in our patients with symptomatic SVD. METHODS: In a cross-sectional study design we included 30 patients with clinical and MRI evidence of cerebral SVD and 30 age-, gender- and risk factor-matched control subjects with no neurological diseases. Patients were evaluated at the Ultrasound Laboratory at the Neurology Clinic, Clinical Center of Serbia in Belgrade, during a three-month period (from September 1st to December 1st 2012). Baseline demographic and vascular risk factors were recorded. All patients underwent standard carotid ultrasound scans with measuring of intima-media thickness (IMT) and analysis of atheromatous plaques. Internal carotid artery stiffness was evaluated with the use of e-tracking option as beta stiffness index (BSI) value. RESULTS: There were no differences between study groups in regard to degree of carotid stenosis and type of carotid plaques (p > 0.05). Patients in SVD group had significantly higher mean IMT (p = 0.0093) and mean BSI (p < 0.0001) than subjects in the control group. No significant correlation was detected between IMT and BSI in SVD group (r = 0.168; p = 0.376). Brain lesions severity correlated with BSI (r = 0.733; p < 0.0001). CONCLUSION: Arterial stiffness is increased in symptomatic patients with SVD, independently of vascular risk factors and IMT.


Assuntos
Artérias Carótidas , Doenças de Pequenos Vasos Cerebrais , Rigidez Vascular/fisiologia , Idoso , Artérias Carótidas/diagnóstico por imagem , Artérias Carótidas/patologia , Espessura Intima-Media Carotídea , Estenose das Carótidas/diagnóstico por imagem , Estenose das Carótidas/patologia , Estudos de Casos e Controles , Doenças de Pequenos Vasos Cerebrais/diagnóstico por imagem , Doenças de Pequenos Vasos Cerebrais/epidemiologia , Doenças de Pequenos Vasos Cerebrais/patologia , Estudos Transversais , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Fatores de Risco
10.
Int J Geriatr Psychiatry ; 31(1): 58-65, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25821003

RESUMO

OBJECTIVE: Cerebral small vessel disease (SVD) is associated with late-onset depression and increases the risk for depression after stroke. We aimed to investigate baseline predictors of depression after long-term follow-up in patients with SVD, initially presenting with first-ever lacunar stroke, free of depression and cognitive impairment. METHODS: A total of 294 patients with SVD were evaluated 3-5 years after the qualifying event. We analyzed baseline demographic data, vascular risk factors, functional status expressed as a score on modified Rankin Scale (mRS), cognitive status, presence of depression, total number of lacunar infarcts and severity of white matter hyperintensities (WMH) on MRI with Age-Related White Matter Changes scale total score (tARWMC) and Fazekas scale periventricular and deep subcortical scores. RESULTS: On follow-up, depression was registered in 117 (39.8%) SVD patients. At the baseline, patients with depression compared with non-depressed were older (64.4 vs 60.9 years; p = 0.007), had higher mRS score (2.8 ± 0.7 vs 1.5 ± 0.7; p < 0.0001) and had more severe lesions on MRI scales (p < 0.0001 for all parameters). On follow-up, depressed patients more frequently exhibited cognitive decline (75.2% depressed vs 56.5% non-depressed; p = 0.003). No difference was detected in risk factor frequency between groups. Multivariate Cox regression analysis adjusted by age and gender revealed independent predictors of depression: baseline mRS >2 (HR 2.17, 95%CI 1.74-2.72; p < 0.0001) and tARWMC (HR 1.05, 95%CI 1.02-1.09; p = 0.005), and cognitive decline on follow-up (HR 1.80, 95%CI 1.12-2.89; p = 0.015). CONCLUSIONS: Baseline functional status and severity of WMH and development of cognitive decline predict the occurence of late-onset depression in patients with SVD.


Assuntos
Doenças de Pequenos Vasos Cerebrais/complicações , Transtorno Depressivo/etiologia , Acidente Vascular Cerebral Lacunar/complicações , Idoso , Doenças de Pequenos Vasos Cerebrais/patologia , Doenças de Pequenos Vasos Cerebrais/psicologia , Cognição/fisiologia , Transtornos Cognitivos/psicologia , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/fisiopatologia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Análise de Regressão , Fatores de Risco , Acidente Vascular Cerebral Lacunar/patologia , Acidente Vascular Cerebral Lacunar/psicologia , Substância Branca/patologia
11.
Neurol India ; 63(6): 933-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26588629

RESUMO

Vertigo is a common symptom in everyday clinical practice. The treatment depends on the specific etiology. Vertigo may be secondary to inner ear pathology, or any existing brainstem or cerebellar lesion but may also be psychogenic. Central vertigo is a consequence of a central nervous system lesion. It is often associated with a focal neurological deficit. Peripheral vertigo is secondary to dysfunction of the peripheral vestibular system and is usually characterized by an acute vertigo with loss of balance, sensation of spinning in the space or around self, and is exaggerated with changes of the head and body position; no other neurological deficit is present. Some medications may also cause vertigo. Depending on the cause of the vertigo, drugs with different mechanisms of action, physical therapy, psychotherapy, as well as surgery may be used to combat this disabling malady. Symptomatic treatment has a particularly important role, regardless of the etiology of vertigo. We reviewed the current medications recommended for patients with vertigo, their mechanisms of action and their most frequent side effects.

12.
Vojnosanit Pregl ; 72(8): 710-3, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26495697

RESUMO

BACKGROUND/AIM: The association between the right-to-left shunt (RLS) and migraine with aura (MA) has been proven so far. The aim of this study was to determine if the presence of RLS detected as a result of transcranial doppler (TCD) bubble-test, makes any difference in clinical presentation, aura and headache in patients with MA. METHODS: A single-group descriptive study was conducted on 153 patients diagnosed with MA. TCD bubble-test was performed on 135 of them. The recorded demographic and clinical features of patients were analyzed and compared with the results of the TCD bubble test. RESULTS: In the group of 135 patients, 88 (65.2%) had positive TCD bubble-test. The difference in the investigated clinical features of patients of the patients and aura between the patients with and without RLS, was not found. CONCLUSION: The results of our study confirm a high prevalence of right-to-left shunt in patients with MA, but the clinical relevance of this association was not shown.


Assuntos
Enxaqueca com Aura/diagnóstico , Ultrassonografia Doppler Transcraniana/métodos , Adulto , Circulação Cerebrovascular/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Enxaqueca com Aura/etiologia , Enxaqueca com Aura/fisiopatologia , Valor Preditivo dos Testes , Adulto Jovem
13.
J Ultrasound Med ; 34(10): 1853-9, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26362145

RESUMO

OBJECTIVES: Patients with cerebral small vessel disease often present with various motor, cognitive, and emotional changes, including gait disturbances, parkinsonism, and depression. Substantia nigra hyperechogenicity, brain stem raphe hypoechogenicity, ventricle diameters, and sonographic characteristics of other brain structures on transcranial sonography have been increasingly used as biomarkers in a range of neurologic diseases. We aimed to explore the frequency and clinical correlates of transcranial sonographic findings in symptomatic patients with small vessel disease. METHODS: In a cross-sectional study, neurologic, cognitive, and emotional statuses and transcranial sonographic and magnetic resonance imaging findings were compared between 102 patients with small vessel disease and 45 healthy age- and sex-matched control participants. RESULTS: Compared to healthy controls, small vessel disease cases had more frequent brain stem raphe hypoechogenicity (55.9% versus 11.1%; P < .0001), substantia nigra hyperechogenicity (30.4% versus 11.1%; P = .022), and enlarged third ventricles (P < .0001). Substantia nigra hyperechogenicity correlated with gait disturbances, extrapyramidal features, and cognitive impairment. Brain stem raphe hypoechogenicity was associated with the diagnosis of depression. Enlargement of the third and lateral ventricles was more frequent in patients with cognitive impairment. Pathologic substantia nigra hyperechogenicity and enlarged ventricles were associated with the severity of cerebral ischemic lesions. CONCLUSIONS: Transcranial sonography shows pathologic findings in a substantial number of patients with small vessel disease, probably reflecting disruption of frontostriatal pathways.


Assuntos
Transtornos Cerebrovasculares/diagnóstico por imagem , Aumento da Imagem/métodos , Ultrassonografia Doppler Transcraniana/métodos , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
14.
Ultrasound Med Biol ; 41(4): 982-8, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25701529

RESUMO

Although amyotrophic lateral sclerosis (ALS) is characterized by involvement of motor neurons in the motor cortex, brainstem and spinal cord, there is accumulating evidence that it is a multisystem degenerative disease, with dysfunction of the striatonigral dopaminergic system as well. Transcranial B-mode sonography of the parenchyma enables depiction of the differing tissue echogenicity of midbrain and basal ganglia structures in various movement disorders. Transcranial B-mode sonography was performed in the standard manner in 101 patients with sporadic newly diagnosed ALS and 60 age- and gender-matched controls. Increased frequencies of pathologic substantia nigra hyper-echogenicity (p = 0.027), interrupted brainstem raphe (p = 0.003) and increased third ventricle diameter (p < 0.0001) were detected in ALS patients as compared with healthy controls. Only four ALS patients exhibited some features of parkinsonism. Pathologic findings on transcranial B-mode sonography of parenchyma did not correlate with clinical presentation, functional status or disease subtype. Our study provides additional evidence of multisystem involvement in ALS patients, particularly in subcortical areas.


Assuntos
Esclerose Amiotrófica Lateral/diagnóstico por imagem , Esclerose Amiotrófica Lateral/patologia , Mapeamento Encefálico/métodos , Encéfalo/patologia , Ecoencefalografia/métodos , Ultrassonografia Doppler Transcraniana/métodos , Gânglios da Base/diagnóstico por imagem , Gânglios da Base/patologia , Tronco Encefálico/diagnóstico por imagem , Tronco Encefálico/patologia , Feminino , Humanos , Masculino , Mesencéfalo/diagnóstico por imagem , Mesencéfalo/patologia , Pessoa de Meia-Idade , Córtex Motor/diagnóstico por imagem , Córtex Motor/patologia
15.
J Alzheimers Dis ; 42 Suppl 3: S37-43, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24898641

RESUMO

INTRODUCTION: Cerebral small vessel disease (SVD) is a common cause of cognitive impairment and vascular dementia. OBJECTIVE: We aimed to investigate predictors of cognitive decline in patients with SVD who initially presented with first-ever small subcortical stroke of lacunar type but had normal cognitive status. METHODS: A total of 294 patients with SVD were evaluated 3-5 years after initial presentation. We analyzed baseline demographic data, vascular risk factors, functional status expressed as score on modified Rankin Scale, total number of lacunar infarcts, and severity of white matter hyperintensities (WMH) on magnetic resonance imaging with Age-Related White Matter Changes scale total score (tARWMC) and Fazekas scale periventricular and deep subcortical scores. RESULTS: At follow-up, vascular cognitive impairment (VCI) on any type was detected in 188 (63.9%) of SVD patients, with 65 (22.1%) meeting criteria for vascular dementia and 123 (41.8%) presenting with cognitive impairment not dementia. Patients with VCI were older (64.4 ± 10.3 in VCI versus 58.6 ± 10.5 years in non-VCI; p < 0.0001) at the time of initial clinical presentation and more frequently male (57.9% VCI versus 46.2% non-VCI; p = 0.052). No difference was noted in frequency of vascular risk factors in VCI versus non-VCI cases. Multivariate logistic regression analysis adjusted by age and gender identified overall severity of WMH (tARWMC HR 1.42, 95% CI 1.01-2.00; p0.043) and total number of lacunar infarcts (HR 3.06, 95% CI 1.71-5.50, p < 0.001) as independent predictors of cognitive decline. CONCLUSION: In patients with SVD, independent predictors of VCI were baseline severity of WMH and total number of lacunar infarcts.


Assuntos
Encéfalo/patologia , Doenças de Pequenos Vasos Cerebrais/complicações , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/etiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Infarto Encefálico/complicações , Infarto Encefálico/patologia , Doenças de Pequenos Vasos Cerebrais/mortalidade , Transtornos Cognitivos/mortalidade , Feminino , Humanos , Estudos Longitudinais , Imageamento por Ressonância Magnética , Masculino , Entrevista Psiquiátrica Padronizada , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Retrospectivos , Análise de Sobrevida , Substância Branca/patologia
16.
Cogn Behav Neurol ; 27(1): 48-50, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24674965

RESUMO

Creutzfeldt-Jakob disease (CJD) is a fatal neurodegenerative disease caused by conformational alteration of the ubiquitous prion protein. Sporadic CJD appears to progress faster if the basal ganglia are shown to be affected on magnetic resonance imaging. Transcranial B-mode sonography (TCS) enables visualization of differences in tissue echogenicity, which can be associated with changes in the cerebral metabolism of various metals. These metabolic changes are considered 1 of the potential mechanisms of the brain damage in CJD; TCS hyperechogenicity may reflect changes in metal homeostasis in CJD. We report a 63-year-old woman who presented with typical sporadic CJD. One month after she fell ill, a magnetic resonance imaging scan of her brain showed diffuse cortical but no obvious basal ganglia involvement. However, TCS revealed moderate hyperechogenicity of both lentiform nuclei. The patient's disease progressed quickly and she died 2 months later. TCS may show basal ganglia alteration early in the disease course of patients with quickly progressing CJD, thus aiding in premortem diagnosis.


Assuntos
Gânglios da Base/diagnóstico por imagem , Síndrome de Creutzfeldt-Jakob/diagnóstico por imagem , Ecoencefalografia , Síndrome de Creutzfeldt-Jakob/fisiopatologia , Progressão da Doença , Eletroencefalografia , Feminino , Humanos , Pessoa de Meia-Idade
17.
Ideggyogy Sz ; 66(7-8): 263-8, 2013 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-23971358

RESUMO

BACKGROUND: There are still dilemmas about the vasodilating effect of vinpocetine, a synthetic ethyl alkaloid vincamine. The method of measuring cerebral vasomotor reactivity (VMR) by transcranial Doppler (TCD) technique before and after administration of the medication was used to estimate the degree of arterioles vasodilatation. The aim of this study was to test of the vasodilating effect of vinpocetine in patients with cerebral small vessel disease (SVD) by measuring cerebral VMR. MATERIAL AND METHODS: Thirty patients with SVD were on 3-month-long oral treatment with 15 mg vinpocetine daily. Cerebral VMR was determined by breath holding test. The breath holding index (BHI) was calculated in standard manner and values > 0.69 were considered normal. At the baseline, before treatment (I), BHI, modified Rankin scale (mRS) score, Mini Mental State Examination (MMSE) score were determined. One month later (II) BHI was assessed again, while after 3 months of treatment (III) we analyzed BHI, mRS score and MMSE score. RESULTS: The average age of patients was 61.4 +/- 11.5 years (range 40 to 77 years), 18 (60%) female and 12 (40%) males. Values of BHIs were increased during treatment at the right MCA (I) 1.18 +/- 0.53, (II) 1.26 +/- 0.54, (III) 1.37 +/- 0.41, with statistical significance between I and III measurement (p < 0.05). An increase was noted on the left MCA (I) 1.25 +/- 0.53, (II) 1.31 +/- 0.55 and (III) 1.32 +/- 0.42, but it did not reach statistical significance (p > 0.05). Mean MMSE score significantly increased from baseline 27.4 +/- 2.3 to 28.5 +/- 2.0 after three months of treatment (p < 0.001). Functional status showed a statistically significant improvement with mRS score increasing from 2.1 +/- 1.0 to 1.1 +/- 0.6 (p < 0.001). CONCLUSION: This pilot study showed that 3-month-long oral treatment with vinpocetine 15 mg daily had tendency to increase BHI, indicating improvement of cerebral VMR. It is possible that higher doses of vinpocetine are needed to achieve substantial increase of VMR.


Assuntos
Doenças de Pequenos Vasos Cerebrais/tratamento farmacológico , Cognição/efeitos dos fármacos , Ultrassonografia Doppler Transcraniana , Vasodilatação/efeitos dos fármacos , Vasodilatadores/uso terapêutico , Alcaloides de Vinca/uso terapêutico , Administração Oral , Adulto , Idoso , Velocidade do Fluxo Sanguíneo/efeitos dos fármacos , Doenças de Pequenos Vasos Cerebrais/diagnóstico por imagem , Doenças de Pequenos Vasos Cerebrais/fisiopatologia , Esquema de Medicação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Vasodilatadores/administração & dosagem , Sistema Vasomotor/efeitos dos fármacos , Alcaloides de Vinca/administração & dosagem
18.
J Ultrasound Med ; 32(7): 1117-23, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23804334

RESUMO

New therapeutic strategies under development aim to improve recanalization rates and clinical outcomes after ischemic stroke. One such approach is ultrasound (US)-enhanced thrombolysis, or sonothrombolysis, which can improve thrombolytic drug actions and even intrinsic fibrinolysis. Although the mechanisms are not fully understood, it is postulated that thrombolysis enhancement is related to nonthermal mechanical effects of US. Recent results indicate that US with or without microbubbles may be effective in clot lysis of ischemic stroke even without additional thrombolytic drugs. Sonothrombolysis is a promising tool for treating acute ischemic stroke, but its efficacy, safety, and technical details have not been elucidated and proved yet in stroke treatment.


Assuntos
Eletroporação/métodos , Medicina Baseada em Evidências , Fibrinolíticos/uso terapêutico , Sonicação/métodos , Acidente Vascular Cerebral/terapia , Terapia Trombolítica/métodos , Terapia por Ultrassom/métodos , Humanos , Resultado do Tratamento
19.
J Neurol ; 260(8): 2124-9, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23681646

RESUMO

The early presentation of autonomic dysfunctions at the disease onset has been considered the mandatory clinical feature in adult-onset autosomal dominant leukodystrophy, which is a rarely recognised leukodystrophy caused by duplication of the lamin B1 gene. We report the first family with adult-onset autosomal dominant leukodystrophy and lamin B1 duplication, without the distinguishing early-appearing autonomic dysfunctions. Subjects from three consecutive generations of a multi-generational Serbian family affected by adult-onset autosomal dominant leukodystrophy underwent clinical, biochemical, neurophysiological, neuroradiological, and genetic studies. The patients atypically exhibited late autonomic dysfunctions commencing at the disease end-stages in some. Genetic findings of lamin B1 duplication verified adult-onset autosomal dominant leukodystrophy, which was supported also by neuroimaging studies. Exclusively, proton magnetic spectroscopy of the brain revealed a possibility of neuro-axonal damage in the white matter lesions, while magnetic resonance imaging of the spinal cord excluded spinal myelin affection as a required finding in this leukodystrophy. The detection of lamin B1 duplication, even when autonomic dysfunctions do not precede the other symptoms of the disease, proves for the first time that lamin B1-duplicated adult-onset autosomal dominant leukodystrophy may have a phenotypic variant with delayed autonomic dysfunctions. Prior to this report, such a phenotype had been speculated to represent an entity different from lamin B1-duplicated leukodystrophy. Hereby we confirm the underlying role of lamin B1 duplication, regardless of the autonomic malfunction onset in this disorder. It is the only report on adult-onset autosomal dominant leukodystrophy from Southeastern Europe.


Assuntos
Sistema Nervoso Autônomo/fisiopatologia , Duplicação Gênica , Doenças Desmielinizantes Hereditárias do Sistema Nervoso Central/genética , Lamina Tipo B/genética , Adulto , Idade de Início , Encéfalo/patologia , DNA/genética , Éxons/genética , Família , Feminino , Genótipo , Doenças Desmielinizantes Hereditárias do Sistema Nervoso Central/patologia , Doenças Desmielinizantes Hereditárias do Sistema Nervoso Central/fisiopatologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Linhagem , Fenótipo , Reação em Cadeia da Polimerase , Sérvia , Sobrevida
20.
Acta Neurol Belg ; 113(3): 299-302, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23319290

RESUMO

Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is the most common heritable cause of stroke and vascular dementia in adults. We present a family from Serbia presenting with stroke and depression in the lack of vascular risk factors, with brain MRI indicating CADASIL. A novel NOTCH3 Gly89Cys mutation was located in exon 3. This report illustrates that in the setting of a positive family history with typical clinical and MRI features, even with an atypical form of pedigree, a high suspicion of CADASIL should lead to genetic testing.


Assuntos
CADASIL/genética , Cisteína/genética , Glicina/genética , Mutação/genética , Receptores Notch/genética , Encéfalo/patologia , Saúde da Família , Feminino , Testes Genéticos , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Receptor Notch3 , Sérvia
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