5 results on '"Ron R Tasker"'
Search Results
2. Neurocirugía supratentorial para el tratamiento del dolor
- Author
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Jan M. Gybels and Ron R. Tasker
- Abstract
Se describen la talamotomia estereotaxica medial y basal, la ablacion hipofisaria, la girectomia precentral y poscentral y las lesiones en el sistema limbico para el tratamiento del dolor. Estos procedimientos lesivos del cerebro supratentorial, en la actualidad se realizan de forma infrecuente, y han sido reemplazados por la estimulacion cerebral y por la administracion intraventricular de farmacos. La potencia de la evidencia de la eficacia de estos diversos procedimientos lesivos quirurgicos para el alivio del dolor cronico es debil, debido a que no son posibles los procedimientos doble ciego controlados por placebo. Sin embargo, las publicaciones de autoridades respetables en la materia muestran que se han obtenido resultados muy notables en sindromes dolorosos «intratables», y esto es mas evidente en el dolor nociceptivo que en el dolor de caracter neuropatico. Ademas, estas intervenciones han ofrecido la oportunidad de realizar observaciones electrofisiologicas de las estructuras cerebrales supratentoriales durante los procedimientos estereotaxicos en pacientes completamente despiertos, revelando la actividad neuronal asociada con condiciones clinicas particulares.
- Published
- 2007
3. Colaboradores
- Author
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A Vania Apkarian, Mark Baccei, Miroslav Backonja, Panos Barlas, Ralf Baron, Allan I Basbaum, Carlos Belmonte, David L H Bennett, Charles B Berde, Karen J Berkley, Stuart Bevan, Christiane S Bieber, Klaus Bielefeldt, Marcelo E Bigal, Jörgen Boivie, Michael R Bond, Harald Breivik, Kay Brune, M Catherine Bushnell, James N Campbell, Nathan I Cherny, Mary L Chipman, John J Collins, A D (Bud) Craig, Kenneth D Craig, Jørgen B Dahl, Marshall Devor, Anthony Dickenson, Andrew Dickman, Raymond A Dionne, Jonathan O Dostrovsky, David Dubuisson, John Ellershaw, Bjorn E Eriksson, Howard L Fields, Maria Fitzgerald, Herta Flor, Lucia Gagliese, Neelima Gandham, Gerald F Gebhart, Louis Gifford, Peter J Goadsby, Sharon M Gordon, Richard H Gracely, Jan M Gybels, Hermann O Handwerker, Karla S Hayes, Jennifer A Haythornthwaite, Mary M Heinricher, Raymond G Hill, Tomas G M Hökfelt, Anita Holdcroft, Peter J Hoskin, Stephen P Hunt, Wilfrid Jänig, Troels Staehelin Jensen, Mark A Jones, Gareth T Jones, David Julius, Joel Katz, Henrik Kehlet, Brigitte L Kieffer, Hyungsuk Kim, H Richard Koerber, Bart Koes, Martin Koltzenburg, Josephine Lai, Jon D Levine, Bengt Linderoth, Richard B Lipton, Donlin M Long, Benjamin G Lopez, Thomas Lundeberg, Bruce Lynn, Gary J Macfarlane, Patrick W Mantyh, Mitchell B Max, Emeran A Mayer, John McBeth, Edwin W McCleskey, John S McDonald, Patrick J McGrath, Stephen B McMahon, Henry J McQuay, Ronald Melzack, Richard A Meyer, Björn A Meyerson, Jeffrey S Mogil, Richard C Monks, Andrew Moore, Timothy J Ness, Lone Nikolajsen, Michael H Ossipov, Parag G Patil, Frank Porreca, Donald D Price, Pierre Rainille, Srinivasa N Raja, Andrew S C Rice, Matthias Ringkamp, Michael C Rowbotham, I Jon Russell, Michael W Salter, Christine N Sang, John W Scadding, Hans-Georg Schaible, Martin Schmelz, Jean Schoenen, Stephan A Schug, David L Scott, Philip J Siddall, Brian A Simpson, Christer Sylvén, Ron R Tasker, Timo T Tervo, Michael Thacker, Andrew J Todd, Dennis C Turk, Anita M Unruh, Catherine Urch, Maurits W Van Tulder, Charles J Vierck, C Peter N Watson, Zsuzsanna Wiesenfeld-Hallin, Heng Yu Wong, Clifford J Woolf, Xiao-Jun Xu, Tony L Yaksh, Joanna M Zakrzewska, Hanns Ulrich Zeilhofer, and Xu Zhang
- Published
- 2007
4. Is the target for thalamic deep brain stimulation the same as for thalamotomy?
- Author
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Marshall F. Wilkinson, Zelma H. T. Kiss, Bin. Hu, William Murphy, Jerry P. Krcek, Doug Hobson, Oksana Suchowersky, and Ron R. Tasker
- Subjects
Adult ,Male ,Deep brain stimulation ,medicine.medical_treatment ,Essential Tremor ,Thalamus ,Stimulation ,Brain mapping ,Stereotaxic Techniques ,medicine ,Humans ,Aged ,Aged, 80 and over ,Neurologic Examination ,Brain Mapping ,Essential tremor ,Thalamotomy ,business.industry ,Middle Aged ,medicine.disease ,Electric Stimulation ,nervous system diseases ,Electrodes, Implanted ,Psychosurgery ,surgical procedures, operative ,Treatment Outcome ,Neurology ,Evaluation Studies as Topic ,Anesthesia ,Case-Control Studies ,Stereotaxic technique ,Female ,Neurology (clinical) ,Nuclear medicine ,business ,Psychology ,Psychomotor Performance ,Follow-Up Studies - Abstract
Deep brain stimulation (DBS) has virtually replaced thalamotomy for the treatment of essential tremor. It is thought that the site for DBS is the same as the optimal lesion site; however, this match has not been investigated previously. We sought to determine whether the location of thalamic DBS matched the site at which thalamotomy would be performed. Eleven patients who had detailed microelectrode recording and stimulation for placement of DBS electrodes and subsequent successful tremor control were analysed. An experienced surgeon, blinded to outcome and final electrode position, selected the ideal thalamotomy site based on the reconstructed maps obtained intraoperatively. When the site of long-term clinically used DBS and theoretical thalamotomy location was calculated in three-dimensional space and compared for each of the x, y, and z axes in stereotactic space, there was no significant difference in the mediolateral location of DBS and theoretical lesion site. There was also no difference between the theoretical lesion site and the placement of the tip of the electrode; however, the active electrodes used for chronic stimulation were significantly more anterior (P = 0.005) and dorsal (P = 0.034) to the ideal thalamotomy target. This mismatch may reflect the compromise required between adverse and beneficial effects with chronic stimulation, but it also suggests different mechanisms of effect of DBS and thalamotomy.
- Published
- 2003
5. Central neurosurgery
- Author
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Jan M. Gybels and Ron R. Tasker
- Subjects
medicine.medical_specialty ,business.industry ,General surgery ,medicine ,Neurosurgery ,business - Published
- 2003
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