Search results for "Cerebro"
showing 10 items of 539 documents
RIHSA Myelography: A Method in the Diagnosis of Space Occupying Intraspinal Lesions
1969
The actual state of computerized tomography (CT)-computer assisted tomography (CAT).
1977
Prevalence, incidence and mortality from cardiovascular disease in patients with pooled and specific severe mental illness: a large-scale meta-analys…
2017
People with severe mental illness (SMI) – schizophrenia, bipolar disorder and major depressive disorder – appear at risk for cardiovascular disease (CVD), but a comprehensive meta-analysis is lacking. We conducted a large-scale meta-analysis assessing the prevalence and incidence of CVD; coronary heart disease; stroke, transient ischemic attack or cerebrovascular disease; congestive heart failure; peripheral vascular disease; and CVD-related death in SMI patients (N=3,211,768) versus controls (N=113,383,368) (92 studies). The pooled CVD prevalence in SMI patients (mean age 50 years) was 9.9% (95% CI: 7.4-13.3). Adjusting for a median of seven confounders, patients had significantly higher o…
Endothelial Cell Swelling and Brain Perfusion
1997
Background: Whereas the contribution of glial swelling to no-reflow conditions in the ischemic penumbra or during reperfusion after global ischemia is widely discussed, little is known about cell volume control of endothelial cells under reperfusion conditions. Methods: The effect of extracellular acidosis-a key mediator of secondary brain damage-on cell volume was studied in the GM7373 endothelial cell line. Experiments were performed at pH = 6.0 in the presence or absence of bicarbonate, and during exposure to inhibitors of specific transport systems such as ethyl isopropyl amiloride or 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid. Results: Endothelial swelling to 111.1 ± 3.4% was f…
Neumoencefalo a tensión tras herida en cuero cabelludo en portadora de válvula de derivación ventrículo-peritoneal: caso clínico y revisión de la lit…
2009
El neumoencéfalo se produce la mayoría de las veces por una solución de continuidad en el cráneo e incluso en las meninges. En ocasiones, ciertos factores pueden hacer que éste adopte las características de un neumoencéfalo a tensión provocando una clínica neurológica severa. Presentamos el caso de una paciente de 66 años portadora de una doble válvula de derivación ventrículo-peritoneal que acude a Urgencias con un cuadro de hipertensión intracraneal y que tras la exploración física y la tomografía computarizada se detecta una herida en cuero cabelludo y un neumoencéfalo a tensión. Este defecto en piel se hallaba justo en la zona del borde de una plastia craneal colocada tras la resección …
Brain-Heart interactions during ischemic processes: Clinical and experimental evidences
2020
International audience
PATH56 MRI correlates of vascular cognitive impairment: contribution of microbleeds, white matter changes and infarcts in a large hospital-based cros…
2010
Background The mechanisms underlying vascular cognitive impairment remain poorly understood. Brain microbleeds may contribute, particularly to executive dysfunction. We investigated the cognitive effects of microbleeds and other neuroimaging markers for cerebrovascular disease in a large, hospital-based study. Methods Consecutive, unselected patients referred to the stroke unit or clinic underwent clinical assessment, detailed neuropsychological testing and vascular MRI. Microbleeds, white matter changes (WMC) and brain infarcts were identified and their effects on cognition assessed. Results 242 patients were included (N=60 with, N=182 without microbleeds). Executive impairment was more pr…
Tightness of duraplasty in rabbits: a comparative study.
2000
OBJECTIVE: The purpose of this study was to test, in rabbits, the tightness of seven dural substitution materials commonly used in neurosurgery, i.e., Lyodura (B. Braun Melsungen AG, Melsungen, Germany), Tutoplast dura (Tutogen Medical, Inc., Parsippany, NJ), Tutoplast fascia lata (Tutogen Medical, Inc.), autologous periosteum, Neuropatch (B. Braun Melsungen AG), Dacron (E.I. du Pont de Nemours and Co., Wilmington, DE), and Ethisorb (Ethicon, Inc., Somerville, NJ). METHODS: Duraplasties were performed with sutures alone or were additionally fixed with fibrin glue. Leakage pressures were assessed by infusion of artificial cerebrospinal fluid, containing sodium fluorescein, into the cisterna …
Effects of endothelin-1 on the cerebrovascular bed of the goat.
1991
Abstract The aim of the present study was to analyze the effects of endothelin-1 (ET-1) in the cerebrovascular bed of the goat, the importance of endothelial integrity and the contribution of extracellular Ca2+ to these responses. We measured isometric tension and 45Ca2+ uptake in isolated middle cerebral arteries, and cerebral blood flow (CBF) in unanesthetized animals. ET-1 elicited concentration-dependent contractions which were potentiated in arteries without endothelium. Ca2+-free medium and nicardipine inhibited, and Bay K 8644 potentiated the ET-1-induced contractions. ET-1 enhanced 45Ca2+ uptake in isolated arteries. Injections of ET-1 directly into the cerebral circulation decrease…