Klinische Monatsblätter für Augenheilkunde
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Klin Monbl Augenheilkd · Jan 2002
[Citation rates of medical German-language journals in English-language papers--do they correlate with the impact factor, and who cites? (reprint)].
Several publications are warning that the German language is no longer needed for transmission of scientific data. One of the causes may be the Impact Factor (IF), which appears to be derived predominantly from Anglo-American journals. The aim of this study was to check actual international attention paid to German-language journals, i. e. their citation frequencies in English-language papers. Are these citing rates in English-language articles correlated to the IF, and from where do citing articles originate? ⋯ (i) An IF >/= 1 is, obviously, very hard to attain by German-language journals. ISI's differentiation between Citing vs. Cited-only Journals (the latter often serving as MEDLINE/EMBASE sources) during derivation of IF appears unjustified. (ii) English now serves as the predominant communication language in sciences in German-speaking countries, but has not supplanted the German language. Our study reveals remarkable international attention rates remaining.
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Klin Monbl Augenheilkd · Jan 2002
[Publication languages of Impact Factor journals and of medical bibliographic databanks (reprint)].
A preference for English-language sources during determination of Journal Impact Factors (IF) was discussed, IF being published in the annual Journal Citation Reports (JCR). The JCR are derived from data in Science Citation Index (SCI). The aim of this study was, therefore, (i) to review publication countries and languages in JCR, (ii) publication languages in SCI in comparison to further recognised medical bibliographic databanks. ⋯ (i) Anglo-American publishers" countries and English-language journals prevail in JCR with respect to numbers and IF levels. Publication language English favours citation frequency. (ii) Of databanks studied, SCI shows a maximum preference for English-language sources, thereby causing an English Language Bias during IF derivation.
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Klin Monbl Augenheilkd · Oct 2001
[Retrospective analysis of 417 cases of contusion and rupture of the globe with frequent avoidable causes of trauma: the Erlangen Ocular Contusion-Registry (EOCR) 1985 - 1995].
Ocular trauma is the cause of every third enucleation. Blunt injuries belong to the most frequent causes. We analysed blunt ocular injuries to collect detailed epidemiological data. ⋯ Blunt ocular injuries frequently induce severe ocular damage. Only consequent attention to industrial safety act, general preference given to rounded edges and the urgent information about safety eyeware for hobbyists may reduce the number of ocular injuries with permanent morphological and functional damage.
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Klin Monbl Augenheilkd · Oct 2001
[Bilateral amaurosis in 11 patients with giant cell arteritis confirmed by arterial biopsy].
Even in the times of corticosteroids giant cell arteritis may lead to complete bilateral blindness. ⋯ Complete bilateral blindness occurred in 5 % of patients with giant cell arteritis, up to 2 days after initiation of treatment with corticosteroids. This number can only be further reduced by immediate therapy after clinical suspicion of giant cell arteritis.
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Klin Monbl Augenheilkd · Sep 2001
Review[Differential diagnosis of visual aura in migraine and epilepsy].
Visual phenomena like lightnings, disturbed contours of objects, or skotoma, can be due to ophthalmological diseases, but can also occur as symptoms generated by the central nervous system ("aura") in migraine or epilepsy. A subsequent hemicrania is considered as a hallmark of migraine, but in many cases does not allow for a certain distinction from postictal headaches in patients with focal epilepsy. A detailed analysis of the aura does, however, provide sufficient information for classifying the disorder as an aura in migraine or as a simple partial epileptic seizure in most cases. ⋯ Secondarily generalized seizures, however, may also occur in patients with migraine. Interictal and ictal EEG recordings can be important to prove an epileptic origin, but their sensitivity is low if ictal discharges remain limited to a small brain area. In rare cases, measurements of ictal cerebral perfusion can contribute to the differential diagnosis.