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  • 1
    ISSN: 0942-0940
    Keywords: Brain death ; criteria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In 1974, the Japanese EEG Society's Ad Hoc Committee on Brain Death published criteria for determining brain death only in cases of acute gross primary brain lesions. In 1983, a new brain death study group was organized to re-evaluate these criteria. During a 6-month period from March 1, 1984, 217 neurosurgical and neurological clinics and emergency services throughout Japan reported 718 brain deaths caused not only by primary lesions but also by secondary brain lesions and diagnosed as such on the basis of the 1974 criteria excluding the condition of “abrupt fall of blood pressure followed by persistent hypotension”. The data derived from the 718 cases in this collaborative study were pooled and analyzed, and it became known that the 1974 criteria still are generally reliable. Some changes have been made, however, and new criteria for determination of brain death adopted.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0942-0940
    Keywords: Germ cell tumour ; chemotherapy ; CDDP ; VP-16
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A co-operative study for patients with intracranial germ cell tumours was performed to analyze their prognosis and the effectiveness of Cisplatin/Etoposide (CDDP/VP-16) chemotherapy. A total of 46 patients; 30 primary and 16 recurrent cases were registered from 15 participating neurosurgical institutions in Japan. Based on histological criteria and tumour markers, they were classified into three groups; germinoma, germinoma with syncytiotro-phoblastic giant cell (STGC), and non-germinomatous malignant tumour. Sixteen patients were treated with CDDP/VP-16 chemotherapy alone and the other 30 patients were treated by a combination of surgery and/or radiation in addition to chemotherapy. Eleven out of 13 patients (85%) with germinoma showed a complete (n=10) or partial (n=1) response to CDDP/VP-16 chemotherapy even if their tumours were recurrent and there was evidence of CSF dissemination. For the germinoma with STGC and non-germinomatous malignant tumour, a high response rate; 100% for the former and 78% for the latter, could also be achieved in both the primary and the recurrent cases except in those cases of immature teratoma. Their survival times were still different between them. Two-year survival was 50% in germinoma with STGC and 48% in non-germinoma, while it was 88% in germinoma cases.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Neurosurgical review 23 (2000), S. 39-44 
    ISSN: 1437-2320
    Keywords: Key words Anaplastic astrocytoma ; Dissemination ; E-cadherin ; Glioblastoma ; N-cadherin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Cadherins are Ca2+-dependent cell adhesion molecules that play an important role in tissue construction and morphogenesis in multicellular organisms. Because in recent years there have been reports of cadherin involvement in tumor metastasis, we conducted an immunostain for E-cadherin and N-cadherin monoclonal antibodies in paraffin-embedded surgical specimens of primary and recurrent lesions in 13 cases of glioblastoma and nine cases of anaplastic astrocytoma. No expression of E-cadherin was detected in the tumor cells. On the other hand, expression of N-cadherin was observed in malignant astrocytic tumor cells, but the N-cadherin positive rate tended to be less at the time of recurrence. Decreased expression of N-cadherin was detected at the time of recurrence in 11 of the 13 cases in the glioblastoma group. Cerebrospinal fluid (CSF ) dissemination and extracranial metastasis were observed in nine (81.8%) of these 11 patients. Therefore, we tried to analyze the clinical backgrounds and the N-cadherin positive rates by statistics. We concluded that decreased expression of N-cadherin at the time of recurrence correlates with dissemination in malignant astrocytic tumors.
    Type of Medium: Electronic Resource
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