Document Detail

Dilated episcleral arteries--a significant physical finding in assessment of patients with cerebrovascular insufficiency.
MedLine Citation:
PMID:  622744     Owner:  NLM     Status:  MEDLINE    
Dilated episcleral vessels associated with ipsilateral internal carotid artery occlusions have been previously reported though not widely appreciated. These ocular changes have been presumed to be manifestations of ocular ischemia. The authors have recently encountered this sign in seven patients and in none was there evidence of ocular ischemia. In addition to an ipsilateral internal carotid artery occlusion, arteriograms demonstrated that the major source of blood supply to the homolateral cerebral hemisphere was by retrograde flow through markedly enlarged ophthalmic arteries filled in retrograde fashion from dilated external carotid collateral channels in the orbit. This association of dilated episcleral arteries as a sign of increased orbital blood flow and the major source of collateral blood supply to the homolateral cerebral hemisphere has not been previously reported. We reemphasize the importance of a careful examination of the episcleral vessels in patients suspected of having internal carotid artery occlusions.
R W Countee; A Gnanadev; P Chavis
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Stroke; a journal of cerebral circulation     Volume:  9     ISSN:  0039-2499     ISO Abbreviation:  Stroke     Publication Date:    1978 Jan-Feb
Date Detail:
Created Date:  1978-03-21     Completed Date:  1978-03-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0235266     Medline TA:  Stroke     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  42-5     Citation Subset:  IM    
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MeSH Terms
Carotid Arteries / radiography
Carotid Artery Thrombosis / diagnosis*,  physiopathology
Carotid Artery, Internal
Cerebrovascular Circulation*
Dilatation, Pathologic / diagnosis
Hypertension / diagnosis
Ischemic Attack, Transient / diagnosis
Middle Aged
Ophthalmic Artery / physiopathology
Sclera / blood supply*
Vertebral Artery / radiography

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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