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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 139 (1997), S. 661-669 
    ISSN: 0942-0940
    Keywords: Brain oedema ; human serum albumin ; blood-brain barrier ; cold injury ; vasogenic brain oedema ; osmolality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Therapy for vasogenic brain oedema (VBE) is still an unsolved problem. Experimental work with the aim of establishing an oncotherapeutic option is presented. VBE is performed by focal freeze injury in rats. Using a stereotactic head holder hypo- or hyperosmolar human serum albumin is administered via the intraventricular route. The goal is to enhance the migration of oedema fluid with the aid of oncotic pressures. Early and late results are obtained for each group respectively four and twenty-four hours after the infliction of cold injury. The efficacy of therapy is evaluated by cerebrospinal fluid (CSF) osmolality, cerebral water content, tissue specific gravity, and blood-brain barrier (BBB) permeability. Posttherapeutic values for CSF osmolality are obtained by cisterna magna puncture. Hyperosmolar CSF after performance of cold injury (p 〈 0.05) is thought to be a result of fluid accumulation in the traumatized region partially from the intraventricular space. Posttherapeutic values after hyperosmolar albumin administration have revealed iso-osmolar CSF, increase in specific gravity (p 〈 0.001), and decrease in BBB permeability (p 〈 0.05). These results are in accordance with withdrawal of oedema fluid into the ventricles which can be interpreted as a positive therapeutic effect. Late results in hyperosmolar group have disclosed a hypo-iso-osmolar CSF, persistent increase in specific gravity, and no regression. These values have shown that hyperosmolar albumin administration does not interfere with CSF circulation. Early results of hypo-osmolar albumin application are discouraging. This preliminary work of a therapeutic trial on VBE may be a basis for future investigations with different dosages and time modalities.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0942-0940
    Keywords: Head injury ; neuron specific enolase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In the posttraumatic period, measurement of neural tissue enzymes in serum and cerebrospinal fluid gives quantitative information about the severity of the head injury. In our study, we evaluated the relationship between the serum and cerebrospinal fluid levels of neuron specific enolase and the severity of trauma. Head traumas at different severity were applied experimentally (Mild 0.038 N, Moderate 0.057 N, Severe 0.3 N). Serum and cerebrospinal fluid levels of neuron specific enolase were measured in trauma and control groups of rats. Only in the severe trauma group, the neuron specific enolase levels of cerebrospinal fluid were significantly increased. There was no statistically significant difference between the groups when serum neuron specific enolase levels were evaluated. Our data leads us to conclude that trauma, causing significant neural damage, results in an increase in cerebrospinal fluid neuron specific enolase levels, however the serum neuron specific enolase levels do not seem to run parallel with that increase.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European spine journal 5 (1996), S. 275-277 
    ISSN: 1432-0932
    Keywords: Bilateral abducens nerve palsy ; Cervical spine trauma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Bilateral traumatic abducens nerve palsy is a rare condition. We report a case associated with cervical spine flexion injury. This may be the first such case report, as no similar case was found in our review of the literature. The mechanisms of injury in this case are relevant to theories that explain hyperextension injuries.
    Type of Medium: Electronic Resource
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