Amaurosis fugax: Difference between revisions
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In [[medicine]], '''amaurosis fugax''' is an episode of transient partial or complete monocular blindness, often associated with an embolus of the carotid artery. It may be a warning sign for impending stroke. Since it is defined as transient, the diagnosis is usually from history alone, although vascular imaging may confirm underlying stenosis or plaque. | In [[medicine]], '''amaurosis fugax''' is an episode of transient partial or complete monocular blindness, associated with hypoperfusion of the retinal circulation.<ref>{{citation | ||
| title = Sudden Visual Loss | |||
| author = Gino A Farina, Angel Feliciano, Nicholas Y Lorenzo | |||
| journal = eMedicine | date = March 17, 2009 | |||
| url = http://emedicine.medscape.com/article/1216594-overview}}</ref> | |||
While it is often associated with an embolus of the carotid artery, it also may be due to vasospasm.<ref>{{citation | |||
| volume=329 | pages = 396-398 | date =August 5, 1993 | issue = 6 | |||
| journal = New England Journal of Medicine | |||
| title = Treatment of Vasospastic Amaurosis Fugax with Calcium-Channel Blockers | |||
| author = Jacqueline Winterkorn, Mark J. Kupersmith, Jonathan D. Wirtschafter, and Scott Forman | |||
| url = http://content.nejm.org/cgi/content/full/329/6/396}}</ref> It may be a warning sign for impending stroke. Since it is defined as transient, the diagnosis is usually from history alone, although vascular imaging may confirm underlying stenosis or plaque. | |||
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 19:50, 1 June 2009
In medicine, amaurosis fugax is an episode of transient partial or complete monocular blindness, associated with hypoperfusion of the retinal circulation.[1]
While it is often associated with an embolus of the carotid artery, it also may be due to vasospasm.[2] It may be a warning sign for impending stroke. Since it is defined as transient, the diagnosis is usually from history alone, although vascular imaging may confirm underlying stenosis or plaque.
References
- ↑ Gino A Farina, Angel Feliciano, Nicholas Y Lorenzo (March 17, 2009), "Sudden Visual Loss", eMedicine
- ↑ Jacqueline Winterkorn, Mark J. Kupersmith, Jonathan D. Wirtschafter, and Scott Forman (August 5, 1993), "Treatment of Vasospastic Amaurosis Fugax with Calcium-Channel Blockers", New England Journal of Medicine 329 (6): 396-398