Advances in Stereotactic and Functional Neurosurgery 11: by C. H. A. Meyer, A. Detta, C. Kudoh (auth.), Assoc. Professor

By C. H. A. Meyer, A. Detta, C. Kudoh (auth.), Assoc. Professor Dr. Björn A. Meyerson, Professor Dr. Christoph Ostertag (eds.)

This quantity comprises chosen contributions from the XIth assembly of the eu Society for Stereotactic and sensible Neurosurgery held in September 1994 in Antalyaffurkey. many of the papers take care of the various healing and technical developments made during this box of neurosurgery. The emergence of recent stereotactic methodologies corresponding to frameless stereotaxy and different kinds of neuronavigation became an essential instrument for all sorts of neurosurgical operations. increasingly more younger neurosurgeons takes an curiosity within the neurosurgical ways to the therapy of stream issues, power soreness and epilepsy. it is a transparent signal ofthe starting to be information of the lengthy overlooked incontrovertible fact that those neurosurgical remedies will be provided to massive sufferer populations. Neurotransplantation as a unique therapy of Parkinson's disorder has lead the way for the appliance of this expertise for different symptoms. The pioneering paintings played through the overdue Edward Hitchcock is reviewed the following. there's a renewed curiosity in pallidotomy for facing yes different types of Parkinson's illness and sure elements of this operation are mentioned in one other paper. development within the neurosurgical therapy of soreness is handled by means of contributions on sophisticated concepts of percutaneous cordotomy, DREZ operations and significant reviews of spinal wire stimulation. a singular process is a file at the studies of treating melanoma ache via intraspinal implantation of chromaffin cells. a number of contributions disguise the real problems with novel innovations for the research of neural disorder, peroperative tracking with puppy, microrecording, magneto-encephalography and different techniques.

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Extra resources for Advances in Stereotactic and Functional Neurosurgery 11: Proceedings of the 11th Meeting of the European Society for Stereotactic and Functional Neurosurgery, Antalya 1994

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Seven patients have been neurophysiologically evaluated by the use of a Cibex apparatus measuring torque and movement velocity ofthe lower limbs simultaneously with static and dynamic recordings of the EMG. Keywords: Spasticity; intrathecal baclofen. Introduction Spasticity is a clinical sign often present in association with decreased muscle strength. It is characterized by a marked increase in muscle tone both of agonist and antagonist muscles typically giving progressive resistance to a fast passive movement of the limb.

An incidence of hearing loss of about 4-5% after surgery for trigeminal neuralgia, and up to 1012% in hemifacial spasm surgery is reported in the literature as well as in our cases [1,3]. In our 2/48 cases of hearing loss following MVD surgery and 2/49 cases of deafness following acoustic neurinoma removal significant changes in BAEPs were mainly observed during the preliminary phases of the operations. Surgical manreuvres performed near, or directly on the acoustic nerve produced significant BAEP changes in all of our acoustic neurinoma patients, and in many undergoing MVD; however, no clear correlation was found between the increase in latency, the reduction in amplitude and the degree of hearing loss.

A computer-assisted system is also introduced. This system enables to transposed data between images obtained from different imaging modalities, MRI, CT, DSA and X-rays, on one workstation. It computes the parameters of the stereotaxic instrument settings reproducing the path of a surgical probe to the centre of a lesion and allows direct visualisation of the points at which a simulated probe trajectory intersects the image slices. Materials and Methods 1) Neurosurgical Room and X-Ray Picture Acquisition In the operative room, we use a neurosurgical stereotaxic frame based on the Talairach method [14] allowing biplane serial angiography without distortion and with a constant enlargement factor.

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