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  • 1
    ISSN: 0942-0940
    Keywords: Elderly meningioma ; clinical feature ; prognostic implication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary During the 5 years from 1987 to 1991, 89 elderly patients, aged 70 years and over, were admitted to departments of neurosurgery in Yamaguchi prefecture with meningioma. The clinical features and prognostic implications of meningioma in the elderly were assessed retrospectively. Seventy-eight (88%) of the 89 patients underwent surgery, which was a higher rate than has been previously reported. The length of clinical history was also shorter than in previous studies, and was partly due to the recent introduction of magnetic resonance imaging (MRI). The incidence of poor prognosis (severe disability, vegetative or dead) in the elderly and a younger group aged less than 70 years was 13% and 7%, respectively, but the difference was not statistically significant. In the surgically treated elderly group, age did not influence the patient's outcome. The factors affecting the outcome were pre-operative neurological deficit (p〈0.05), histological malignancy (p〈0.05), and multiple operations (p〈0.05). Twenty-seven of the elderly meningioma patients were in good physical condition with minimal neurological involvement. They underwent total removal of the tumour at the first operation, and the histological diagnosis was benign. Twenty-five of these 27 patients fell into the best outcome category. Therefore, age alone was not a factor preventing proper surgical treatment of meningioma in the elderly.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of low temperature physics 105 (1996), S. 533-538 
    ISSN: 1573-7357
    Keywords: 74.60.Ec ; 14.72.−h
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have found clear anisotropy in the ab plane with fourfold symmetry of the resistive superconducting transition under magnetic fields for single-crystal Pb2Sr2Y0.62Ca0,38Cu3O8, which is regarded as anisotropy of the upper critical field Hc2. This is not only qualitatively but also quantitatively similar to that formerly observed in La1.86Sr0.14CuO4. The observed fourfold symmetry is explained as being mainly due to the anisotropy of the superconducting energy gap owing to $$d_{x^2 - y^2 }$$ pairing. Hc2, one of the bulk properties, supports $$d_{x^2 - y^2 }$$ pairing in the high-Tc superconductivity.
    Type of Medium: Electronic Resource
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