[Floating structure of the carotid artery as a cause of microembolism in the basin of cerebral arteries]. / Flotiruiushchaia struktura sonnoi arterii kak prichina mikroémbolii v basseine mozgovykh arterii.

This article describes a rare clinical and diagnostic case report regarding a female patient presenting with frequent transitory attacks in the basin of both middle cerebral arteries. Based on the findings of duplex scanning of the cervical arteries we revealed floating structures with the presence of pronounced slow turbulent blood flow. After excluding all known causes of cerebral artery microembolism, associated with heart pathology or with the presence of unstable atherosclerotic plaques, the leading hypothesis of transitory ischaemic attacks in the woman concerned was the formation of microthrombi in the zone of motility of the structures revealed. The results of bitemporal transcranial Doppler monitoring carried out during 30 minutes detected more than 10 microembolic signals in the middle cerebral artery, thus confirming the embolic nature of transitory ischaemic attacks.

[Restenosis of carotid arteries after carotid endarterectomy: current aspects of the problem: (local and systemic risk factors). Part 1].

Carotid endarterectomy is currently the most effective surgical means of preventing ischaemic stroke. Despite the fact that this type of intervention is widely used, there seems to be no tendency toward decreased incidence of such a complication as restenosis of carotid arteries.The present review deals with the results of analyzing the literature on the problem concerning carotid artery restenosis after carotid endarterectomy. Considered herein are the problems of epidemiology and prevalence of the complication involved. Special attention is paid to local and systemic risk factors for the development of restenosis. Studying risk factors of restenosis after carotid endarterectomy is of considerable importance for both prevention and choice of pathogenetically targeted treatment of patients presenting with atherosclerotic lesions of brachiocephalic vessels.