[Etiology and mechanism of cerebral ischemic accidents].
Two main mechanisms of ischaemic cerebral vascular accidents (ICVA) can be distinguished: arterial occlusion or decreased perfusion without occlusion. The two principal causes are atherosclerosis of cerebral arteries (60% of cases) and cardiogenic emboli (20%). Other diseases may more rarely be responsible for ICVA and should be systematically excluded by means of a detailed assessment: dissection of neck arteries, haematological disorders, inflammatory or infectious arteritis, certain metabolic diseases or the use of toxins such as "crack".
Biousse
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Département de Recherche en Imagerie, SHFJ, Orsay.
D001157:Arterial Occlusive Diseases / Q000150:complications*; D001161:Arteriosclerosis / Q000150:complications; D002545:Brain Ischemia / Q000139:chemically induced / Q000209:etiology*; D004617:Embolism / Q000150:complications; D006402:Hematologic Diseases / Q000150:complications; D006801:Humans; D008659:Metabolic Diseases / Q000150:complications; D014662:Vasoconstrictor Agents / Q000009:adverse effects
D014662:Vasoconstrictor Agents
Etiologies et mécanismes des accidents ischémiques cérébraux.