Long term results of the BOP graft in anterior cervical surgery

info:eu-repo/semantics/nonPublishe

CPA MENINGIOMAS: Review of 16 pures cases

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Clinical and radiological long term results of the biopolymer graft (BOP) in anterior cervical surgery

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Surgical management of pineal region lesions

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Surgical planning for intradural tumors of the foramen magnum

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Prise en charge chirurgicale des lésions de la région pinéale

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Centralised Optical Monitoring of Tree-structured Passive Optical Networks using a Raman-assisted OTDR

9th International Conference on Transparent Optical Networks, ICTON 2007; Rome; Italy; 1 July 2007 through 5 July 2007Monitoring of tree-structured Passive Optical Networks from a central office is difficult to achieve using a standard OTDR. Switchable reflective elements placed at the ONU can help to discriminate between the branches. In parallel, a Raman assisted OTDR is shown to increase the dynamic range of the reflectometry measurement, thus enabling to detect more faults in the network, and especially fibre breaks after the splitter. ©2007 IEEE.FP6 ePhoton/One+ European project and the EUROP

Intracranial teratomas in children: the role and timing of surgical removal

In this study, the authors report their experience with the surgical treatment of intracranial teratomas with an emphasis on the indications for delayed resection after oncological treatment. Methods. The authors retrospectively reviewed the cases of 14 children with intracranial teratomas. The mean age at diagnosis was 10.5 years (range 2 days–18 years), and 11 patients were male. The final histological analysis revealed pure mature teratoma in 5 cases, mixed teratoma with germinoma in 3 cases, and nongerminomatous malignant germ cell tumor in 6 cases. Thirteen patients underwent tumor resection, and these patients were divided into 2 subgroups according to the timing of surgery. In Group A, 10 patients underwent resection as the primary treatment because no tumor markers were detected in 4 patients, a teratomatous component was revealed on biopsy sampling in 3 patients, and a large tumor volume in 3 patients. In Group B, 3 patients underwent removal of residual pure mature teratoma after oncological treatment. Results. Seven of the 8 patients (87.5%) with pure mature teratomas or with mixed teratoma and germinoma are currently alive (mean follow-up of 9 years); the eighth patient died of postoperative meningitis. Two of the 6 patients (33%) with mixed nongerminomatous malignant germ cell tumors died of tumor progression regardless of the timing of surgery. Conclusions. The results of this study support the belief that microsurgical removal is the only effective treatment for intracranial teratomas. Surgery may be performed as the primary therapy when there is evidence of a noninvasive teratoma, and as a secondary therapy if there is only a partial response to neoadjuvan