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Giant aneurysm of the extracranial carotid artery: case report
No full textAbstractWe report a case of giant extracranial carotid aneurysm treated by carotid aneurysmectomy. A 70-year-old female was referred with a palpable swelling on left lateral region of the neck, associated with dizziness and dysarthria. Spiral-CT scan showed a 5-cm aneurysm of the internal carotid artery (ICA), kinking of ICA and increased flow in the right vertebral artery. Angiography showed, a fusiform ICA aneurysm, with lengthening and tortuosity of intracranial vessels. An aneurysmectomy was performed with end-to-end repair of ICA. The patient was discharged on the 12 post-operative day. Twelve months after the operation, the patient showed a complete recovery from the neurological deficit and patency of ICA. We recommend surgical treatment in order to avoid rupture, thromboembolism and cerebrovascular insufficiency
Extracranial-intracranial bypass for giant aneurysms and complex vascular lesions: a clinical series of 10 patients.
No full textAim. The purpose of this clinical study is to evaluate the preventive bypass indications, the kind of bypass to use, and the timing of postoperative internal carotid artery (ICA) occlusion in the treatment of complex aneurysms.
Methods. This study enrolled 10 patients suffering from complex aneurysms treated using several kind of extra-intracranial bypass on the basis of preoperative careful assessment of cerebrovascular flow. This assessment is based on the balloon test occlusion (BTO), from which three different conditions emerge. According to the Department of Neurosurgery these three different conditions require three different kinds of bypass: in case of depleted flow a short STA-MCA bypass is necessary, in case of intermediate flow a long arterial graft bypass is required, whereas in case of high flow a long venous graft bypass is mandatory.
Results. Bypass patency was found in six out of seven patients who underwent surgery for giant ICA aneurysms, as well as in other patients. One of the patients died for a septic shock, another had a neck hematoma that required surgical evacuation. At mean follow-up no further neurological deficits were found.
Conclusion. The severe complications due to the combined approaches can be reduced thanks to the indications obtained by BTO concerning the kind of bypass to perform and to the timing of the ICA occlusion
Modificazioni della barriera ematoencefalica nel trauma cranico. Un modello sperimentale.
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Modificazioni morfologiche nel ganglio spinale dopo procedura di radiofrequenza pulsata.
No full textMorphological modification in dorsal root ganglion after pulsed radiofrequency procedure.
No full textVariations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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