Endovascular treatment of traumatic arterio-venous fistulas of the vertebral artery.

Cervical vertebral artery fistulas are rare arteriovenous malformations between the vertebral artery and veins of the neighbourhood. The etiology of the fistulas may be traumatic or spontaneous. Management and the results in two patients with large arterio-venous fistulas of the cervical vertebral artery with severe deterioration of spinal function by using the detachable balloon technique are discussed.

Neurosurgical management of cerebellar hemorrhage.

Controversy remains concerning the management of patients with cerebellar hemorrhage. In this study the records of 42 patients were reviewed. In 60% of them the signs of brainstem compression and upward transtentorial herniation were found.

Glycohistochemical visualisation of mannose-binding lectins in the microvasculatures of brain and brain tumours.

Alpha-mannosylated albumins with three types of linkage between sugar and protein were compared. The results showed their histochemical binding to be sensitive to the nature of the linkage configuration. One configuration permitted visualisation of lectin losses from the tumour blood vessels, already known from biochemical analysis.

Cellular glycoconjugates and their potential endogenous receptors in the cerebral microvasculature of man: a glycohistochemical study.

Protein-carbohydrate interactions are supposed to play a pivotal role in mediation of recognitive interactions, relevant to cellular interactions and transport. The brain microvasculature is the site of numerous cell-cell and cell-matrix recognitive interactions. Assuming carbohydrate-protein interactions play important physiological roles here, then specific carbohydrate-binding proteins should be prominent components of this microvasculature, in addition to the wealth of endogenous glycoconjugates reported by other authors.

Extra-intracranial bypass surgery for vertebrobasilar insufficiency due to obstructive vertebral artery and vertebral-basilar artery junction disease.

This report is on 19 patients with vertebrobasilar insufficiency in whom direct extra-intracranial arterial bypass surgery to the posterior circulation was performed. In all patients preoperative angiography had demonstrated vascular lesions of haemodynamic significance of either one or both vertebral arteries (VA) or within the vertebral-basilar artery junction (VABAJ). The bypass procedure was performed between the occipital artery (OA) and - depending on the localization of the obstructive vascular lesion - the posterior inferior cerebellar artery (PICA), the VA or the anterior inferior cerebellar artery (AICA).