Clinical Neuroscience

[What is neurorehabilitation?]

URBÁN Edina, FÁY Veronika

JUNE 20, 2003

Clinical Neuroscience - 2003;56(05-06)

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Clinical Neuroscience

[Abstracts of the 2nd Pannonian Symposium on CNS Injury]

[Abstracts of the 2nd Pannonian Symposium on CNS Injury 2003;56(05-06)]

Clinical Neuroscience

[Combined anterior and posterior approach to the tumours of the cervicothoracic junction: our experience]

BANCZEROWSKI Péter, LIPÓTH László, VERES Róbert

[Introduction - In the past, surgery of the pathologies of cervicothoracic junction carried high risk. Better knowledge of the anatomical situation and the increasing experience with anterior approach, corpectomy and spinal stabilization instruments have all made possible to remove the tumours of the cervicothoracic junction in a combined way. Case reports - The authors present six cases of spinal tumours where removal was done via anterior approach with partial clavicle and sternal resection. In two cases the anterior approach were combined with posterior tumour removal and fixation. Two of the cases were metastatic tumours, one lymphoma, one osteochondroma, one giant cell osteoid tumour and one malignant neurogenic tumour. The ventral approach gave a relatively wide window to explore the tumours and with the help of the operative microscope the tumour removal went fairly well. After total removal of the tumours the cervical spine were stabilized with own clavicle or iliac bone graft, titanium plate and screws. In patients with three-column involvement posterior fixation was made. The immediate recovery of the patients was well and there were no postoperative complications. Postoperative CT and MRI scans have great value in the early control after surgery as well as for the follow up of the patients. Conclusion - The anterior approach with partial clavicle and sternal resection combined with posterior approach and fixation seems to be feasible and safe method to explore and remove cervicothoracic junction pathologies.]

Clinical Neuroscience

[Asymptomatic ischemic cerebrovascular disorders and neuroprotection with vinpocetine]

HADJIEV Dimiter

[The asymptomatic ischemic cerebrovascular disorders (AICVD) is an early manifestation of cerebrovascular disease. It is also known as latent insufficiency of the cerebrovascular circulation or as asymptomatic cerebrovascular disorders. Recently, the term subclinical disease, detected noninvasively, has been introduced by American Heart Association. The diagnosis is based on the following criteria: evidence of vascular risk factors; episodic nonspecific complaints without any focal cerebral symptoms; mild cognitive deficit, detected by neuropsychological tests; carotid ultrasonography often shows intimal-medial thickening, atherosclerotic plaques and carotid stenosis; CT and MRI occasionally reveal silent cerebral infarctions, white matter hyperintensities or cerebral atrophy; regional hypoperfusion above the ischemic threshold is also seen by rCBF measurements. Treatment of the AICVD, modifying the vascular risk factors and using neuroprotective agents, should be the cornerstone of primary prevention of ischemic stroke and cognitive decline, caused by cerebrovascular disorders. Vinpocetine has been found to interfere with various stages of the ischemic cascade: ATP depletion, activation of voltagesensitive Na+- and Ca++-channels, glutamate and free radicals release. The inhibition of the voltage-sensitive Na+- channels appears to be especially relevant to the neuroprotective effect of vinpocetine. Pronounced antioxidant activity of the drug could also contribute to the neuroprotection. PET studies in primates and man showed that 11C labelled vinpocetine passes the blood-brain barrier rapidly. Heterogeneous brain distribution of the compound was observed mainly in the thalamus, basal ganglia, occipital, parietal and temporal cortex, regions which are closely related to the cognitive functions. PET studies in chronic ischemic stroke patients revealed favourable effects of vinpocetine on rCBF and glucose metabolism in the thalamus, basal ganglia and primary visual cortex. It seems, vinpocetine, affecting the multiple mechanisms of the AICVD, could be of benefit for the treatment in this early stage of cerebrovascular disease. Vinpocetine may also become a new therapeutic approach to prophylactic neuroprotection in patients at high risk of ischemic stroke.]

Clinical Neuroscience

[CONGRESS CALENDAR]

[Congress calendar 2003;56(05-06)]

Clinical Neuroscience

[Society of Környey’s Fellows]

CZOPF József

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