1,720,963 research outputs found

    Ultrasound guided onabotulinum injection in chronic migraine: a case series

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    Chronic migraine is difficult to treat and requires a multidisciplinary approach. Several pharmacological treatments have been shown to be effective in placebo-controlled randomized trials and our patients therapy was between these: topiramate and local injection of botulinum toxin. Both therapies are reported to be effective in patients with chronic migraine with and without medication overuse. Ultrasound guidance provide many advantages and permits to visualize the spread of the drugs

    NEUROPROTECTION AND STROKE

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    The current goal of acute stroke therapy is to restore cerebral perfusion and to protect cerebral tissue before the development of an irreversible damage. This latter is due to the duration and the severity of cerebral ischemia [1]. Recanalization operated by thrombolysis represents the most intuitive and effective treatment of acute cerebral ischemia. Unfortunately, because of the strictly clinical criteria that make thrombolysis feasible, this approach is limited only to few patients, and it is estimated that only about 5% of all acute cerebrovascular patients are suitable for rtPA treatment [2]. The need for new therapeutic strategies appropriate for the majority of acute stroke patients is therefore evident, in order to save as much ischemic brain tissue as possible

    Great occipital nerve blockade for cluster headache in the emergency department: case report

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    A 44-year-old man with a past medical history of episodic cluster headache presented in our ED with complaints of multiple daily cluster headache attacks, with cervico-occipital spreading of pain from May to September 2004. The neurological examination showed no abnormalities as well as brain and spine MRI. Great Occipital Nerve (GON) blockade, with Lidocaine 2% (5 ml) and betamethasone (2 mg), were performed in the right occipital region (ipsilaterally to cluster headache), during attack. GON blockade was effective immediately for the attack and the cluster period resolved after the injection. We suppose that the action of GON blockade may involve the trigemino-cervical complex and we moreover strongly suggest to use GON blockade in emergency departments for cluster headache with cervico-occipital spreading as attack abortive therapy, especially in oxygen and sumatriptan resistant cluster headache attacks, in patients who complaints sumatriptan side-effects or have contraindications to use triptans

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    Variations on the Author

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    “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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