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  • 11
    Electronic Resource
    Electronic Resource
    Dural arteriovenous malformation with false aneurysm and exophthalmos (1979)
    Springer
    Acta neurochirurgica 45 (1979), S. 343-343 
    Details
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01769147
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  • 12
    Electronic Resource
    Electronic Resource
    Dural arteriovenous malformation with false aneurysm and exophthalmos (1978)
    Springer
    Acta neurochirurgica 43 (1978), S. 101-110 
    Details
    ISSN: 0942-0940
    Keywords: Dural arteriovenous malformation (dural AVM) ; false aneurysm ; exophthalmos
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of dural arteriovenous malformation with giant non-traumatic false aneurysm in the left middle fossa is reported. A 10-year-old female patient was admitted to our hospital with pulsating exophthalmos of the left eye, which was successfully treated by ligation of the main feeder and finally by the radical excision of the dural AVM and false aneurysm. False aneurysm of non-traumatic origin is so rare that only two cases were detected in the literature (Reinaet al., Sakakiet al.), and no previous case of false aneurysm complicated by dural AVM seems to have been reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01809229
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  • 13
    Electronic Resource
    Electronic Resource
    Scanning electron microscopy of the subarachnoid macrophages after subarachnoid haemorrhage, and their possible role in the formation of subarachnoid fibrosis (1979)
    Springer
    Acta neurochirurgica 50 (1979), S. 273-280 
    Details
    ISSN: 0942-0940
    Keywords: Macrophage ; subarachnoid haemorrhage (SAH) ; subarachnoid fibrosis ; scanning electron microscope (SEM)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Sixty dogs with experimental subarachnoid haemorrhage (SAH), repeated SAH, and subarachnoid fibrosis (examined three weeks and three months after SAH, and treated with urokinase or dexamethasone) were examined by scanning electron microscope (SEM). The authors observed the resting and activated macrophages, the erythrophagocytosis, and giant cells in the subarachnoid space after SAH. They consider that the macrophages play an important role in the formation of subarachnoid fibrosis, similar to the role of macrophages in fibrosis in other sites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01808524
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    Paper (German National Licenses)
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  • 14
    Electronic Resource
    Electronic Resource
    Effect of antifibrinolytic therapy on subarachnoid fibrosis in dogs after experimental subarachnoid haemorrhage (1980)
    Springer
    Acta neurochirurgica 54 (1980), S. 17-24 
    Details
    ISSN: 0942-0940
    Keywords: Subarachnoid fibrosis ; subarachnoid haemorrhage (SAH) ; tranexamic acid ; antifibrinolytic therapy ; scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of antifibrinolytic therapy on posthaemorrhagic subarachnoid fibrosis was observed experimentally in dogs with the scanning electron microscope (SEM). The subchronic subjects, given intravenous injections of tranexamic acid (1 mg/day) for 12 days and sacrificed 3 weeks after cisternal blood injection, showed residual clot with thick fibrosis, especially around the haemorrhage. The chronic subjects, to which the same procedure was applied and which were sacrificed three months after cisternal blood injection, showed significant increases in the subarachnoid fibrosis, most remarkably in the parasagittal region. Tranexamic acid is widely used for preventing the recurrence of subarachnoid haemorrhage. However, it was revealed in this study that antifibrinolytic therapy might increase chronic posthaemorrhagic subarachnoid fibrosis, which is considered to be responsible for communicating hydrocephalus by disturbing epicortical CSF flow4.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401939
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  • 15
    Electronic Resource
    Electronic Resource
    Arachnoid villi affected by subarachnoid pressure and haemorrhage (1979)
    Springer
    Acta neurochirurgica 51 (1979), S. 63-72 
    Details
    ISSN: 0942-0940
    Keywords: Arachnoid villi ; subarachnoid hemorrhage (SAH) ; increased subarachnoid pressure ; scanning electron microscope (SEM)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The arachnoid villi of 18 dogs were studied. The authors confirmed the pressure gradient changes of the morphology of arachnoid villi of dogs with the scanning electron microscope (SEM). A subarachnoid infusion with 5–10 times higher pressure gradient than the physiological one, tore the superficial endothelial layer from the villi, and the inner part could also be observed stereoscopically. On the surface of the arachnoid villi the authors observed microvilli, openings of vacuoles and intercellular gaps, but did not find openings of preformed channels. After subarachnoid haemorrhage (SAH) generally the villi were blocked but the authors have observed a red blood cell escaping from a villus intercellularly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401795
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  • 16
    Electronic Resource
    Electronic Resource
    Biparieto-occipital craniotomy with hyperextended neck-“sea lion” position (1979)
    Springer
    Acta neurochirurgica 51 (1979), S. 113-117 
    Details
    ISSN: 0942-0940
    Keywords: Craniotomy ; operation ; pineal region ; tentorial incision
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors describe the prone position combined with a hyperextended neck and a biparieto-occipital approach for operation on pineal region tumours and for bilateral tentorial incision.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401802
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  • 17
    Electronic Resource
    Electronic Resource
    Post-haemorrhagic subarachnoid fibrosis in dogs. Scanning electron microscopic observation and dye perfusion study (1979)
    Springer
    Acta neurochirurgica 46 (1979), S. 105-117 
    Details
    ISSN: 0942-0940
    Keywords: Subarachnoid haemorrhage ; subarachnoid fibrosis ; scanning electron microscope ; cerebrospinal fluid pathway
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Scanning electron microscopic observations of the subarachnoid space were made in dogs focussing upon the fibre components in both the normal subarachnoid space and in areas of post-haemorrhagic fibrosis. It was concluded that the fibrous tissue originates from the arachnoid membrane itself, while organized haematoma is considered to form a component of the fibrosis. Perfusion of the subarachnoid space of dogs with a solution of 0.1% Toluidine Blue was also done. This showed that cerebrospinal fluid (CSF) is carried from the subarachnoid space directly to the dural sinuses through a fine string-like structure, which is conceivably one of the collateral CSF absorptive pathways.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01407685
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  • 18
    Electronic Resource
    Electronic Resource
    Subarachnoid haemorrhage and communicating hydrocephalus scanning electron microscopic observations (1979)
    Springer
    Acta neurochirurgica 50 (1979), S. 265-272 
    Details
    ISSN: 0942-0940
    Keywords: Electron microscope ; subarachnoid haemorrhage ; hydrocephalus ; subarachnoid fibrosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Scanning electron microscopic changes in the subarachnoid space after subarachnoid haemorrhage are described. The obstructive changes were classified into five grades ranging from patency to total obstruction. We report a correlation between communicating hydrocephalus and obstruction above grade 3 in the parasagittal region (p 〈 0.01) and the lateral cerebral fissure (p 〈 0.05).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01808523
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    Paper (German National Licenses)
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  • 19
    Electronic Resource
    Electronic Resource
    Changes in the subarachnoid space after experimental subarachnoid haemorrhage in the dog: Scanning electron microscopic observation (1977)
    Springer
    Acta neurochirurgica 39 (1977), S. 1-14 
    Details
    ISSN: 0942-0940
    Keywords: Subarachnoid hemorrhage ; hydrocephalus ; subarachnoid fibrosis ; scanning electron microscope
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The possible changes in the subarachnoid space after subarachnoid haemorrhage were studied in animals by using a scanning electron microscope (SEM). About 1 ml/kg of autogenous blood was injected intracisternally in 36 adult mongrel dogs to investigate changes in the subarachnoid space, over periods ranging from immediately after the injection to as long as 6 months. We have come to the conclusion that the injected blood disappears in about one to two weeks; the fibrosis or thickening of the arachnoid membrane appears in one to three weeks, and then returns to normal in a month in instances of rapid recovery, but there are some cases in which fibrosis persists for a long period and becomes chronic. The fact that an increase of fibrous tissue was found in the parietal region, where the injected blood had hardly reached, appears to indicate that the fibrosis is not always limited to the site of the haemorrhage but can occur in remote regions. We also discuss the usefulness of the SEM in the observation of the subarachnoid space, and the finding that vascular specimen preparations can be made by perfusing the brain with 2–10% phosphate-buffered formaldehyde solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01405236
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  • 20
    Electronic Resource
    Electronic Resource
    Polarization microscopic investigation of subarachnoid fibrosis after subarachnoid haemorrhage (1980)
    Springer
    Acta neurochirurgica 53 (1980), S. 237-245 
    Details
    ISSN: 0942-0940
    Keywords: Subarachnoid haemorrhage (SAH) ; subarachnoid fibrosis (SF) ; polarization microscope ; collagen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The author used the polarization microscope and topo-optical reactions such as phenol reaction, collagen-specific sulphation, and picrosirius red F 3 BA staining to investigate the nature of subarachnoid fibrosis after experimental subarachnoid haemorrhage. It is strongly suggested that the subarachnoid fibrotic deposits—which here analysed in a previous study by scanning electronmicroscopy—contain a high amount of collagen as a main component both three weeks and three months after the SAH.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02074796
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