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  • Brain Injuries  (1)
  • Mavis Bloodflow Computer  (1)
  • Traumatische Hirnschädigung  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Indications for extra-intracranial bypass surgery (1988)
    Springer
    Acta neurochirurgica 95 (1988), S. 34-39 
    Details
    ISSN: 0942-0940
    Keywords: Extra-intracranial bypass surgery ; haemodynamic aspects ; angiographic findings ; ultrasound flow measurement ; Mavis Bloodflow Computer ; Toronto Bypass Study ; indications for bypass surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Angiographic and flow measurement results in 18 cases, who underwent extra-intracranial bypass surgery, are presented. The method was the Mavis® ultrasound technique. Main result:Patients with unilateral internal carotid artery (ICA) occlusion and additional contralateral ICA stenosis or occlusion had a permanent cerebral blood flow (CBF) increase as a consequence of the anastomosis. On the contrary, patients without contralateral flow impairment or with good spontaneous extra-intracranial anastomosis did not have a real CBF improvement but only a temporary flow increase on the anastomotic side with comparable flow decrease in the contralateral ICA. The so-called Toronto Bypass Study was designed to evaluate the effectiveness of extra-intracranial bypass surgery for stroke prevention but it did not prove its effectiveness in this regard. Intentionally it did not put or answer the question of possible haemodynamic benefit for special subgroups of patients with cerebrovascular occlusive disease. Our results suggest such a haemodynamic benefit, and in consequence an indication for bypass treatment may be given in cases with ICA occlusion and additional contralateral flow impairment and without sufficient spontaneous collateralization. The question of a stroke preventing effect in this special subgroup should be answered by another controlled study. But this will be almost impossible to realize because—as a consequence of the Toronto study—at least in our country almost no further patients are transferred to the neurosurgeon for possible bypass surgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01793080
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    25. Pathophysiologie der Mehrfachverletzungen —Störungen des Zentralnervensystems (1974)
    Springer
    Langenbeck's archives of surgery 337 (1974), S. 191-194 
    Details
    ISSN: 1435-2451
    Keywords: Brain Injuries ; Brain Edema ; Autoregulation of the Cerebral Circulation ; Raised Intracranial Pressure ; Cerebrale Durchblutungsautoregulation ; Intrakranielle Drucksteigerung ; Traumatische Hirnschädigung ; Hirnödem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der Hirnverletzte ist wegen der Gefahr traumatischer intrakranieller Hämatome und wegen des Ausfalles der schützenden Durchblutungsautoregulation des Gehirns besonders gefährdet. Blutdruckabfall, Anämie, verminderterpO2 des Blutes und Temperaturanstieg, die vom Hirngesunden ohne Schaden toleriert werden, können die Verletzungsfolgen entscheidend verschlimmern. Die therapeutischen Konsequenzen werden besprochen.
    Notes: Summary The patient with head injuries is particularly at risk, due to the possibility of intracranial hematomas and the failure of the autoregulation of the cerebral circulation. A fall in blood pressure and oxygenation, anemia, and/or increased body temperature, which are tolerated with no harm by patients who have not suffered brain damage, can make the results of injury significantly worse. The therapeutic consequences are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01278657
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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