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  • 1
    ISSN: 0942-0940
    Keywords: Hydrocephalus ; chronic subdural haematoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In a series of 88 cases of chronic subdural haematoma, the occurrence of dilatation of the posterior portion of the contralateral ventricle was found to be unrelated to any major neurological variable. There was, however, a prevalence of recurrences of the subdural effusions in the patients with partial hydrocephalus, compared with patients without ventricular dilatation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 131 (1994), S. 146-150 
    ISSN: 0942-0940
    Keywords: Experimental cerebellar haemorrhage ; enzyme histochemistry ; blood flow ; hydrogen clearance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Early changes of cerebellar and cerebral blood flow, as well as subsequent infratentorial ischaemia, were evaluated in an experimental model of cerebellar haemorrhage. Eight anaesthetized male adult Sprague-Dawley rats received an injection of autologous arterial blood (50 μl) into the right cerebellar hemisphere. Eight animals were sham-operated and served as controls. Cerebellar blood flow, measured at regular time intervals in the hemispheric cortex ipsilateral to the lesion by the hydrogen clearance method, was significantly depressed in the experimental group as compared with the control animals. This drop in cerebellar blood flow was evident 5, 30, 60, 90, and 120 min postoperatively, with a return to pre-injection values recorded 180 min after surgery. No significant difference in supratentorial blood flow was detected over the entire period examined between the two groups of animals. Enzyme histochemistry demonstrated areas of ischaemia around the clot and within the brain stem in animals with an intracerebellar haemorrhage at the end of the experiment. These results provided evidence of ischaemic damage within the infratentorial compartment after the induction of experimental cerebellar haemorrhage.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 225 (1981), S. 259-267 
    ISSN: 1432-1459
    Keywords: Angiomas ; Arteriovenous malformations ; Brain stem ; Cerebellopontine angle ; Microneurosurgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die in der ponto-zerebellären Zysterne gelegenen Angiome befinden sich oberflächlich auf der ventrolateralen Seite des Hirnstammes. Gelegentlich dringen sie in geringer Ausdehnung in die benachbarten Nervenstrukturen ein. Fünf Patienten mit solchen Mißbildungen wurden mit mikrochirurgischer Technik operiert. In allen Fällen wurde eine radikale Exstirpation ausgeführt. Alle Patienten nahmen ihre frühere Tätigkeit innerhalb von 2–12 Monaten nach der Operation wieder voll auf. Es gibt zunehmende Beweise für die Wirksamkeit der chirurgischen Behandlung der Angiome der ventrolateralen Seite des Hirnstammes und des Kleinhirnbrückenwinkels. In der Regel tritt die Krankheit mit Blutungen verschiedenen Ausmaßes auf. Bewußtseinsveränderungen, gegenseitige Hemiparese, gleichseitige Hirnnervenlähmungen sind die häufigsten neurologischen Zeichen nach einer Blutung. Das Ergebnis nach Radikalexstirpation hängt in erster Linie von dem präoperativen Zustand der Patienten ab. Der chirurgische Eingriff verursacht keine oder nur geringfügige neue Ausfälle. Eine chirurgische Exploration ist immer dann ratsam, wenn die Mißbildung auf der Oberfläche zu liegen scheint, anstatt im Hirnstamm selber.
    Notes: Summary Angiomas situated within the pontocerebellar cistern lie superficially on the ventrolateral aspect of the brain stem. Occasionally, minor extensions penetrate into the adjacent nervous structures. Five patients bearing such lesions were operated upon, using a microsurgical technique. Radical excision was performed in all cases. Within 2 to 12 months the patients had returned to their previous occupations, being fully able to work or attend school. There is increasing evidence for the effectiveness of surgical treatment of angiomas of the ventrolateral aspect of the brain stem and the cerebellopontine angle. The illness usually presents with hemorrhages of varying severity, ranging from mild to devastating. Impairment of consciousness, contralateral hemiparesis and ipsilateral cranial nerve palsies are the most frequent neurological signs after bleeding. The outcome following excision is primarily related to the preoperative condition. No additional deficits or only minor further impairment can be expected from surgical interference. Exploration is advisable whenever the malformation appears to lie on the surface rather than within the brain stem.
    Type of Medium: Electronic Resource
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