Abstract
To the Editor: The study population of the North American Symptomatic Carotid Endarterectomy Trial (NASCET) consisted of three groups: patients with retinal transient ischemic attack or stroke (28 percent), hemispheric transient ischemic attack (38 percent), and hemispheric stroke (34 percent) (Aug. 15 issue).1 , 2 There is evidence that the natural history of these three types of patients may be quite different. Three studies of the natural history of amaurosis fugax or retinal infarction have demonstrated five-year rates of stroke or permanent visual loss of 13.1 percent,3 20.3 percent,4 and 24.2 percent.5 By contrast, an important study of the natural history of.
Original language | English (US) |
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Pages (from-to) | 762-765 |
Number of pages | 4 |
Journal | New England Journal of Medicine |
Volume | 326 |
Issue number | 11 |
DOIs | |
State | Published - Mar 12 1992 |
ASJC Scopus subject areas
- Medicine(all)