| Is angiographic spasm real spasm? | |
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MedLine Citation:
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PMID: 961483 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Systematic morphological study of the cerebral arteries was made in six autopsy cases of ruptured aneurysms. The time course of the arterial luminal narrowing was observed by repeated angiograms, and segments of the narrowed arteries were studied histologically. Various histological changes were found consistent with the angiographic findings. We have devided these into three stages according to the duration of the disease. In the acute stage (less than one day) the contraction of the medial smooth muscle cells may be the main cause of the luminal narrowing. In the subacute stage, arteries showed a reduction in lumen size with medial thickening, marked corrugation of the internal elastic lamina, and thrombus formation attached to the endothelial surface. If vasoconstriction remained localized to the same segment for several days, the intimal or medial thickening and thrombus might produce the luminal narrowing consistent with the angiographic narrowing. In the chronic stage (more than two weeks), most cases showed dilatation of the arterial lumen on angiography. These arteries showed frank necrosis of the smooth muscle cells histologically. In a case which demonstrated progressive luminal narrowing on angiograms over 2 weeks, the arterial wall showed luminal narrowing with cellulofibrous thickening of the intima and organization of the thrombus. The presence of these structural changes in the narrowed arteries seen at angiography seems to be very important for proper understanding and treatment of vasospasm. |
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Authors:
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M Mizukami; H Kin; G Araki; H Mihara; Y Yoshida |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Acta neurochirurgica Volume: 34 ISSN: 0001-6268 ISO Abbreviation: Acta Neurochir (Wien) Publication Date: 1976 |
Date Detail:
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Created Date: 1976-10-29 Completed Date: 1976-10-29 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0151000 Medline TA: Acta Neurochir (Wien) Country: AUSTRIA |
Other Details:
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Languages: eng Pagination: 247-59 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acute Disease Adult Aged Cerebral Angiography* Cerebral Arteries / pathology Chronic Disease Female Humans Intracranial Aneurysm / complications Ischemic Attack, Transient / etiology, pathology, radiography* Male Middle Aged Subarachnoid Hemorrhage / complications |
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