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140 results on '"Fitzek, S"'

4. Topodiagnostic investigations on the sympathoexcitatory brain stem pathway using a new method of three dimensional brain stem mapping

Author

Marx, J.J., Iannetti, G.D., Mika-Gruettner, A., Thoemke, F., Fitzek, S., Vucurevic, G., Urban, P.P., Stoeter, P., Cruccu, G., and Hopf, H.C.

Subjects
Research, Brain stem -- Research
Abstract

J Neurol Neurosurg Psychiatry 2004;75:250-255 Objectives: To study the incompletely understood sympathoexcitatory pathway through the human brain stem, using a new method of three dimensional brain stem mapping on the [...]

Published
2004

6. Diffusion weighted magnetic resonance imaging in the diagnosis of reversible ischaemic deficits of the brainstem. (Paper)

Author

Marx, J.J., Mika-Gruettner, A., Thoemke, F., Fitzek, S., Fitzek, C., Vucurevic, G., Urban, P.P., Stoeter, P., and Hopf, H.C.

Subjects
Cerebral ischemia, Brain stem, Magnetic resonance imaging
Abstract

Methods: A total of 158 consecutive patients presenting with acute signs of brainstem dysfunction were investigated using EPI diffusion weighted MRI within 24 hours of the onset of symptoms. High [...]

Published
2002

10. Brainstem reflex circuits revisited

Author

Cruccu, G., Iannetti, G. D., Marx, J. J., Thoemke, F., Truini, A., Fitzek, S., Galeotti, F., Urban, P. P., Romaniello, A., Stoeter, P., Manfredi, M., and Hopf, H. C.

Published
2005

19. Valproic acid induced hepatopathy – Nine new fatalities in Germany from 1994–2003

Author

S König, Fitzek S, Yvonne G. Weber, A Müller-Deile, F Lindmayer, K Samii, H Richard, GC Korenke, Haensch Ca, V Degenhardt, R Oehring, R Brückner, A Jungck, U Specht, P Häussermann, M Hartmann, H Kuhn, B Weidner, R Seitz, T Gerstner, T Hoppen, R Hanusch, D Büsing, R Knapp, E Longin, Gerhard Kluger, I Degen, P Borusiak, W Boxtermann, and JM Kasper

Subjects
Valproic Acid, business.industry, Pediatrics, Perinatology and Child Health, Medicine, Neurology (clinical), General Medicine, Pharmacology, business, medicine.drug
Published
2006
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20. 3D brainstem topodiagnosis--a voxel-based model analyzing MR imaging data

Author

Marx, J. J., Iannetti, G. D., Thoemke, F., Fitzek, S., Urban, P. P., Stoeter, P., Dieterich, M., Cruccu, Giorgio, and Hopf, H. C.

Subjects
anatomy /&/ histology, models, Brain Mapping, Imaging, Three-Dimensional, biological, brain mapping, brain stem, humans, imaging, magnetic resonance imaging, methods, three-dimensional, Humans, Magnetic Resonance Imaging, Models, Biological, Brain Stem
Published
2006

25. Valproic acid induced hepatopathy – Nine new fatalities in Germany from 1994–2003

Author

König, S, primary, Büsing, D, additional, Longin, E, additional, Oehring, R, additional, Häussermann, P, additional, Kluger, G, additional, Lindmayer, F, additional, Hanusch, R, additional, Degen, I, additional, Kuhn, H, additional, Samii, K, additional, Jungck, A, additional, Brückner, R, additional, Seitz, R, additional, Boxtermann, W, additional, Weber, YG, additional, Knapp, R, additional, Richard, H, additional, Weidner, B, additional, Kasper, JM, additional, Haensch, C, additional, Fitzek, S, additional, Hartmann, M, additional, Borusiak, P, additional, Müller-Deile, A, additional, Degenhardt, V, additional, Korenke, GC, additional, Hoppen, T, additional, Specht, U, additional, and Gerstner, T, additional

Published
2006
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31. Brainstem reflex circuits revisited

Author

Cruccu, G., primary, Iannetti, G. D., additional, Marx, J. J., additional, Thoemke, F., additional, Truini, A., additional, Fitzek, S., additional, Galeotti, F., additional, Urban, P. P., additional, Romaniello, A., additional, Stoeter, P., additional, Manfredi, M., additional, and Hopf, H. C., additional

Published
2004
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40. Dysarthria in acute ischemic stroke

Author

Urban, P.P., primary, Wicht, S., additional, Vukurevic, G., additional, Fitzek, C., additional, Fitzek, S., additional, Stoeter, P., additional, Massinger, C., additional, and Hopf, H.C., additional

Published
2001
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47. Drug-induced nonconvulsive status epilepticus with low dose of tiagabine

Author

Fitzek S, Stefan C. A. Hegemann, Sauner D, Bönsch D, and Fitzek C

Subjects
Adult, Male, Epilepsy, Complex Partial, Status Epilepticus, Dose-Response Relationship, Drug, Nipecotic Acids, Humans, Anticonvulsants, Drug Therapy, Combination, Electroencephalography, Tiagabine, Evoked Potentials
Abstract

In placebo-controlled trials, the overall incidence of nonconvulsive status epilepticus was no higher in the tiagabine-treated group than in the placebo-group. Case reports of nonconvulsive status epilepticus under tiagabine suggested a specific role of dose levels, since in these patients symptoms occurred mostly at 40 mg/day or higher. We report a case of complex partial status epilepticus in a patient receiving a low dose of tiagabine and review all 11 case reports of nonconvulsive status epilepticus in patients on tiagabine, with regard to daily doses. Our analysis suggests an individual risk threshold of unknown aetiology.

49. Topodiagnostic investigations on the sympathoexcitatory brain stem pathway using a new method of three dimensional brain stem mapping

Author

Marx, J. J., Giandomenico Iannetti, Mika-Gruettner, A., Thoemke, F., Fitzek, S., Vucurevic, G., Urban, P. P., Stoeter, P., Cruccu, G., and Hopf, H. C.

Subjects
Paper, Aged, 80 and over, Male, Brain Diseases, Brain Mapping, Imaging, Three-Dimensional, Sympathetic Nervous System, Neural Pathways, Humans, Female, Middle Aged, Aged, Brain Stem
Abstract

To study the incompletely understood sympathoexcitatory pathway through the human brain stem, using a new method of three dimensional brain stem mapping on the basis of digitally postprocessed magnetic resonance imaging (MRI).258 consecutive patients presenting with acute signs of brain stem ischaemia underwent biplane T2 and EPI diffusion weighted MRI, with slice orientation parallel and perpendicular to a transversal slice selection of the stereotactic anatomical atlas of Schaltenbrand and Wahren, 1977. The individual slices were digitally normalised and projected onto the appropriate slices of the anatomical atlas. For correlation analysis lesions were imported into a three dimensional model of the human brain stem.31 of the 258 patients had Horner's syndrome caused by acute brain stem ischaemia. Only four of the patients with Horner's syndrome had pontine infarctions, 12 had pontomedullary lesions, and 15 had medullary lesions. Correlation analysis showed significantly affected voxels in the dorsolateral medulla but not in the pons. A statistical comparison with infarct topology in patients with medullary lesions but without Horner's syndrome indicated that involvement of the medial and ventral part of affected voxels located in the ventrolateral medullary tegmentum was specific for Horner's syndrome.Based on this first in vivo topodiagnostic study, the central sympathoexcitatory pathway probably descends through the dorsal pons before converging on specific generators in the ventrolateral medullary tegmentum at a level below the IX and X nerve exits.

50. Brainstem Anatomy of White Matter Tracts Using Diffusion Weighted Imaging

Author

Fitzek, C.M., Speckter, H., Boor, S., Fitzek, S., and Stoeter, P.

Abstract

We used diffusion weighted MR imaging with three different spatial gradients to show brainstem tracts. With a high b-level above 1000 s/mm2it is possible to identify more than 20 tracts due to their fiber anisotropy. With these sequences it is possible to differentiate brainstem lesions from tracts 1–7 and show the topographic relation of lesions to tracts.

Published
1998
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