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Pathophysiological aspects of cerebral sinus venous thrombosis (SVT).
Villringer A, Mehraein S, Einhäupl KM. Villringer A, et al. J Neuroradiol. 1994 Apr;21(2):72-80. J Neuroradiol. 1994. PMID: 8014660 English, French.
From these findings pathophysiological differences are hypothesized: Whereas arterial cerebral ischemia usually is a monophasic abrupt thrombotic process and there is only a small penumbra, SVT is a continuing process of disequilibrium between prothrombotic a …
From these findings pathophysiological differences are hypothesized: Whereas arterial cerebral ischemia usually is a monophasic abrup …
Heparin treatment in sinus venous thrombosis.
Einhäupl KM, Villringer A, Meister W, Mehraein S, Garner C, Pellkofer M, Haberl RL, Pfister HW, Schmiedek P. Einhäupl KM, et al. Lancet. 1991 Sep 7;338(8767):597-600. doi: 10.1016/0140-6736(91)90607-q. Lancet. 1991. PMID: 1679154 Clinical Trial.
After 3 months, 8 of the heparin-treated patients had a complete clinical recovery and 2 had slight residual neurological deficits. In the placebo group, only 1 patient had a complete recovery, 6 patients had neurological deficits, and 3 patients died (p less than 0 …
After 3 months, 8 of the heparin-treated patients had a complete clinical recovery and 2 had slight residual neurological deficits. I …
Nitric oxide modulates the CBF response to increased extracellular potassium.
Dreier JP, Körner K, Görner A, Lindauer U, Weih M, Villringer A, Dirnagl U. Dreier JP, et al. J Cereb Blood Flow Metab. 1995 Nov;15(6):914-9. doi: 10.1038/jcbfm.1995.116. J Cereb Blood Flow Metab. 1995. PMID: 7593351
The response of the regional cerebral blood flow (rCBF) to brain topical superfusion of 20 mM K+ was characterized in a closed cranial window preparation in barbiturate anesthetized and ventilated rats: Increasing K+ in the artificial cerebrospinal fluid (ACSF) induced …
The response of the regional cerebral blood flow (rCBF) to brain topical superfusion of 20 mM K+ was characterized in a closed crania …
Vasospastic amaurosis fugax in a patient with overlap collagenosis treated with nimodipine.
Ploner CJ, Valdueza JM, Villringer A. Ploner CJ, et al. Neurol Res. 1995 Feb;17(1):66-9. doi: 10.1080/01616412.1995.11740288. Neurol Res. 1995. PMID: 7746345
We describe diagnosis and successful treatment of vasospastic amaurosis fugax in a patient with systemic autoimmune disease: A 54 year-old patient with an overlap collagenosis presented with relapsing episodes of transient monocular blindness. ...Calcium entry block …
We describe diagnosis and successful treatment of vasospastic amaurosis fugax in a patient with systemic autoimmune disease: A
Capillary perfusion of the rat brain cortex. An in vivo confocal microscopy study.
Villringer A, Them A, Lindauer U, Einhäupl K, Dirnagl U. Villringer A, et al. Circ Res. 1994 Jul;75(1):55-62. doi: 10.1161/01.res.75.1.55. Circ Res. 1994. PMID: 8013082
Confocal laser-scanning microscopy was used to visualize subsurface cerebral microvessels labeled with intravascular fluorescein in a closed cranial window model of the anesthetized rat. ...
Confocal laser-scanning microscopy was used to visualize subsurface cerebral microvessels labeled with intravascular fluorescein in a
Coupling of cerebral blood flow to neuronal activation: role of adenosine and nitric oxide.
Dirnagl U, Niwa K, Lindauer U, Villringer A. Dirnagl U, et al. Am J Physiol. 1994 Jul;267(1 Pt 2):H296-301. doi: 10.1152/ajpheart.1994.267.1.H296. Am J Physiol. 1994. PMID: 8048594
Coapplication of Theo (5 x 10(-5) M) and the NO synthase blocker N omega-nitro-L-arginine (L-NNA, 10(-3) M) for 30 min led to a further reduction in the CBF response to whisker stimulation to 7.5 +/- 1.3% (P < 0.05 compared with Theo alone). ...
Coapplication of Theo (5 x 10(-5) M) and the NO synthase blocker N omega-nitro-L-arginine (L-NNA, 10(-3) M) for 30 min led to a furth …
Cortical hypoperfusion after global forebrain ischemia in rats is not caused by microvascular leukocyte plugging.
Dirnagl U, Niwa K, Sixt G, Villringer A. Dirnagl U, et al. Stroke. 1994 May;25(5):1028-38. doi: 10.1161/01.str.25.5.1028. Stroke. 1994. PMID: 8165674
In the postischemic period only a slight increase of the number of leukocytes rolling along or sticking to the venular endothelium was seen, and very few capillaries were plugged by leukocytes. Extravasation of leukocytes into the brain tissue was observed in 8 rats beginn …
In the postischemic period only a slight increase of the number of leukocytes rolling along or sticking to the venular endothelium wa …
Dural sinus thrombosis: value of venous MR angiography for diagnosis and follow-up.
Vogl TJ, Bergman C, Villringer A, Einhäupl K, Lissner J, Felix R. Vogl TJ, et al. AJR Am J Roentgenol. 1994 May;162(5):1191-8. doi: 10.2214/ajr.162.5.8166009. AJR Am J Roentgenol. 1994. PMID: 8166009
Direct signs of dural sinus thrombosis on MR angiograms included lack of typical high flow signal from a sinus that did not appear aplastic or hypoplastic on single sections from MR angiography and the frayed appearance of the flow signal from a sinus after recanali …
Direct signs of dural sinus thrombosis on MR angiograms included lack of typical high flow signal from a sinus that did not appear ap …
[Venous MR angiography for the primary diagnosis and follow-up of sinus venous thrombosis. The correlation with the clinical picture and DSA].
Vogl TJ, Bergmann CU, Villringer A, Einhäupl KM, Balzer JO, Steinhoff H, Felix R. Vogl TJ, et al. Rofo. 1993 Jul;159(1):78-85. doi: 10.1055/s-2008-1032725. Rofo. 1993. PMID: 8334263 German.
Compared with DSA, magnetic resonance angiography achieved a high degree of accuracy in our patients. It was significantly better in evaluating the basal sinus system whereas thrombosis of individual ascending veins was better shown by DSA. ...
Compared with DSA, magnetic resonance angiography achieved a high degree of accuracy in our patients. It was significantly better in …
Coupling of brain activity and cerebral blood flow: basis of functional neuroimaging.
Villringer A, Dirnagl U. Villringer A, et al. Cerebrovasc Brain Metab Rev. 1995 Fall;7(3):240-76. Cerebrovasc Brain Metab Rev. 1995. PMID: 8519605 Review.
The coupling of brain cell function to the vascular system is the basis for a number of functional neuroimaging methods relevant for human studies. ...These methods map a specific localized brain activation through a vascular response, such as an increase in …
The coupling of brain cell function to the vascular system is the basis for a number of functional neuroimaging methods relevant for …
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