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  • 1
    Electronic Resource
    Electronic Resource
    Factors influencing the development of Moyamoya Phenomenon (1981)
    Springer
    Acta neurochirurgica 59 (1981), S. 79-86 
    Details
    ISSN: 0942-0940
    Keywords: Moyamoya phenomenon ; carotide artery occlusion ; intracranial vasospasm ; subarachnoid haemorrhage ; ruptured intracranial aneurysm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Both the Moyamoya Phenomenon and occlusion of the internal carotid fork are essential radiological findings in true Moyamoya Disease of unknown aetiology. However, the Moyamoya Phenomenon is often observed in occlusive diseases of the internal carotid bifurcation of known aetiology. The authors recently observed acute development of the unilateral Moyamoya Phenomenon following severe vasospasm of the anterior and middle cerebral arteries due to rupture of an anterior communicating aneurysm. The following four factors have been suspected of contributing to development of the Moyamoya Phenomenon: 1. The chronology of arterial occlusion. 2. Extent and location of occlusion. 3. The cause of occlusion. 4. Anatomical and functional disposition of the basal circulation. As regards the chronology, chronic or slowly progressive arterial stenosis has been thought to be a mandatory factor in development of a Moyamoya network, which plays an important role in the form of collateral channels. However, based on the findings outlined in this paper, the congenital factor may be the most important of the four factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411194
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Alterations of monoamine metabolites and of tryptophan in the basal cisternal CSF of patients after subarachnoid haemorrhage (1987)
    Springer
    Acta neurochirurgica 87 (1987), S. 58-62 
    Details
    ISSN: 0942-0940
    Keywords: Homovanillic acid (HVA ; 5-hydroxyindoleacetic acid (5-HIAA) ; Tryptophan (TRP) ; subarachnoid haemorrhage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Homovanillic acid (HVA), 5-hydroxyindoleacetic acid (5-HIAA) and tryptophan (TRP) were measured in the CSF obtained from the basal cistern of 20 patients, who had undergone surgical obliteration of bleeding aneurysms within 3 days after subarachnoid haemorrhage (SAH). The concentrations of these substances, which were assayed by high performance liquid chromatography (HPLC), were the highest on days 3 or 4, and thereafter showed a gradual decrease with an increase in time. The cisternal CSF in patients who had severe pre-operative clinical grades of SAH or vasospasm contained relatively higher concentrations of HVA, 5-HIAA and TRP than those contained in patients who did not. It is proposed that SAH stimulates the release of monoamines from the brain with the resultant extracellular accumulation of their metabolites and their diffusion into CSF during the acute stage. This stimulatory effect of SAH on the brain monoamine system may be consistent with those previously reported in cases of cerebral haemorrhage or infarction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02076018
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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