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  • 1
    ISSN: 0942-0940
    Keywords: Regional cerebral blood flow ; cerebral ischaemia ; cerebral revascularization ; omental transposition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Regional cerebral blood flow, recorded by the133Xenon inhalation method, was measured preoperatively and over a five years postoperative period in six patients with completed stroke and stabilized neurological deficits, who had undergone omental transposition for revascularization of the ischaemic brain. Comparisons of the preoperative blood flow values with those recorded following surgery demonstrate a postoperative increase of blood flow in five patients, with a high statistical degree of significance in four of them at the final examination. The flow increase was noted over the infarcted areas of the brain, upon which the omentum had been placed, as well as areas of the ischaemic hemisphere without omental placement and the contralateral hemisphere. Out of the five patients who demonstrated preoperative flow values below the expected norm for age, four showed final postoperative cerebral blood flow within the normal limits for their age. The results are consistent with the assumption that the transposed omentum played a role in postoperative blood flow increase, by adding collateral circulation to the ischaemic brain.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 90 (1988), S. 124-126 
    ISSN: 0942-0940
    Keywords: Orbit ; intraorbital tumours ; surgical techniques ; microsurgery ; lateral orbitotomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Lateral orbitotomy including the lateral rim of the orbit allows adequate surgical exposure for most intraorbital tumours. However, by dealing with intraconal lesions located deep at the orbital apex, the control of the posterior aspect of the growth is often less than optimal. The postero-lateral route, with bone removal mainly confined to the greater sphenoidal wing, allows a more direct approach to the posterior portion of these lesions along a plane tangential to the lateral aspect of the temporal pole. A modified surgical technique is reported, which in three consecutive cases allowed radical removal of pure apical tumours without added neurological deficits.
    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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