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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 102 (1990), S. 22-24 
    ISSN: 0942-0940
    Keywords: Head injury ; intracranial epidural haematoma ; computed tomography of the skull ; pneumocephalus ; gas bubbles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to assess the actual incidence of gas bubbles trapped within acute intracranial epidural haematomas, as revealed by computed tomography (CT) of the skull, a series of 204 patients with surgically verified epidural haematomas was retrospectively reviewed. Gas bubbles were observed on CT scan in 22.5% of the cases, with the incidence rising to 37% when CT scanners of the last generation were employed. The available data failed to demonstrate the actual source of intracranial gas. No correlation was found between the presence of gas bubbles and outcome. No patient in the whole series showed any sign of intracranial infection.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0942-0940
    Keywords: Cerebral ischaemia ; collateral flow ; omentum to the brain ; STAMCA anastomosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Transposition of lengthened omentum to the brain surface, transplantation of an omental graft, or superficial temporal artery-middle cerebral artery anastomosis were performed in dogs prior to transcranial occlusion of the ipsilateral middle cerebral artery at its origin, including the bifurcation of the internal carotid artery. Both omentum and by-pass were able to reduce the changes in cerebral blood flow, somatosensory evoked responses, cerebral water and electrolyte content, consequent to the ischaemic insult. In the experimental conditions adopted in this study, the effect of omental transposition in maintaining high levels of flow throughout the entire occluded hemisphere was more marked compared to that resulting from the other methods, while the onset of ischaemic cerebral oedema was affected approximately at the same degree by all procedures. The results point to the role of the transposed omentum in providing an effective collateral circulation to the ischaemic brain.
    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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