[Ulnar nerve compression syndrome].
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Biomedical subjects
Publications and source records attributed to E Maziarz.
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A giant, unclippable right ICA aneurysm located partially intracavernously is reported with neck deriving at C3 level. The aneurysm caused optic chiasm compression, progressive left eye vision loss and exophthalmus as well as persistent headache. The presence of the aneurysm was first found in CT and confirmed by angiography. After having performed the temporary occlusion test of right ICA the ICA was permanently occluded with a detachable balloon. Control angiography showed complete occlusion of right ICA and no opacification of the aneurysm sac from vertebral and left carotid arteries.
In 20 patients with expanding intracranial lesions the cerebral blood flow was determined by the method of Kety-Schmidt in an own modification with an original device--N2O-meter, with simultaneous continuous measurement of the intraventricular pressure and arterial blood pressure. This made possible determination of the cerebral perfusion pressure and of the effect of its fluctuations on the cerebral blood flow. Lowering of the cerebral blood flow below the normal value occurred when the perfusion pressure fell below 60 mm Hg, but its further fall, even to 20 mm Hg, caused no proportional decrease of the cerebral blood flow.
The authors present a case of an aneurysm of the anterior communicating artery which was contrast-filled only from the vertebral artery. The pathogenesis of intracranial aneurysms in cases of developmental anomalies of cerebral arteries is discussed.
In a woman aged 45 years after a generalized epileptic seizure CT and MRI demonstrated a lesion of the type of vascular malformation of the brain diagnosed as a haemangioma by angiography which demonstrated also presence of an aneurysm of the left pericallosal artery. Abdominal ultrasonography and tomography found also hepatic haemangioma. Both cerebral vascular lesions were managed successfully in one-step operation. The hypotheses for explaining the coexistence of haemangiomas and aneurysms are discussed.