Journal of neurosurgery
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Journal of neurosurgery · Dec 2001
Biography Historical ArticlePioneers in the development of transsphenoidal surgery: Theodor Kocher, Oskar Hirsch, and Norman Dott.
The development of new scientific concepts and techniques is usually the result of a progressive evolution. The transsphenoidal approach to pituitary lesions is no exception. ⋯ In this historical vignette, the contributions of three master surgeons. Theodor Kocher, Oskar Hirsch, and Norman Dott, are reviewed.
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Journal of neurosurgery · Dec 2001
Chordomas of the craniocervical junction: follow-up review and prognostic factors.
Chordomas are rare tumors that arise from the remnants of the notochord. Because of their deep location, local infiltrative nature, and involvement of surrounding bone, treatment of chordomas is a challenge. In this study the authors analyze the data and prognostic factors obtained during the follow-up period (range 1-150 months, median 38 months) in 53 patients with craniocervical junction chordomas and 10 patients with chondrosarcomas. ⋯ A better prognosis was observed in patients with chondrosarcoma compared with those harboring chordoma. Histological pattern and patient age at symptom onset were not factors that influenced prognosis in cases of chordoma. Extensive resection and possibly adjuvant proton-beam therapy provided better prognoses for these patients.
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Journal of neurosurgery · Dec 2001
Anaglyphic three-dimensional stereoscopic printing: revival of an old method for anatomical and surgical teaching and reporting.
The authors describe how to use the three-dimensional (3D) anaglyphic method to produce stereoscopic prints for anatomical and surgical teaching and reports preparation by using currently available nonprofessional photographic and computer methods. As with any other method of producing stereoscopic images, the anaglyphic procedure is based on the superimposition of two slightly different images of the object to be reproduced, one seen more from a left-sided point of view and the other seen more from a right-sided point of view. ⋯ To be seen stereoscopically, glasses with colored lenses, normally one red and one blue, have to be used. Stereoscopic 3D anaglyphic prints can be produced using standard photographic and PC equipment; after some training, the prints can be easily reproduced without significant cost and are particularly helpful to disclose the 3D character of anatomical structures.
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The goal of this study was to evaluate the therapeutic window for hypothermia treatment following experimental brain injury by measuring edema formation and functional outcome. ⋯ When hypothermia was administered immediately or 60 minutes after TBI, injured rats showed an improvement in functional outcome and a decrease in edema. Delayed hypothermia treatment had no effect on functional outcome or on edema.