Evidence of silent cerebral embolism in patients with amaurosis fugax.
نویسندگان
چکیده
In 34 patients who presented with attacks of amaurosis fugax with no evidence of cerebral involvement, EEG, angiographic, and regional cerebral blood flow studies were carried out. Six of 23 EEGs, one of 21 angiograms, and five of six regional blood flow studies were thought to provide evidence of silent cerebral embolism. The implications for the management of patients who present with isolated amaurosis fugax are discussed.
منابع مشابه
Retinal fluorescein angiographic evidence for atheromatous microembolism. Demonstration of ophthalmoscopically occult emboli and post-embolic endothelial damage after attacks of amaurosis fugax.
There is evidence that microemboli responsible for amaurosis fugax may be atheromatous but it can elude ophthalmoscopic confirmation, because such emboli quickly fragment and disappear from view in the retinal vessels. This report documents 2 patients in whom fluorescein angiography of the retina provided evidence of microembolization after an attack of amaurosis although the fundus appeared no...
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EDITOR,-We read with interest the article by O'Sullivan et al.' The nine presented patients went through extensive investigations, including echocardiograms in all cases. Yet, no evidence of an embolic or atheromatous aetiology was found. Unfortunately, the authors failed to mention whether the echocardiography was transthoracic or transoesophageal. We had experience with a 29-year-old woman, w...
متن کاملAmaurosis fugax: a clinical comparison.
Amaurosis fugax (transient monocular blindness) is a symptom of retinal ischemia just as contralateral hemiparesis and sensory loss are symptoms of cerebral ischemia. These symptoms are produced by atherosclerotic stenosis of the carotid vessels at the ipsilateral carotid bifurcation and emboli from these areas causing focal, repetitive, retinal ischemia. A study of 31 endarterectomy patients w...
متن کاملArteriographic comparison of amaurosis fugax and hemispheric transient ischaemic attacks.
The results of carotid angiography were compared in 53 patients with amaurosis fugax and 92 with hemispheric transient ischaemic attacks (TIAs). Evidence of extracranial disease was found in 71% of those with retinal ischaemia and these patients rarely had evidence of intracranial disease (11%) or normal angiograms (15%). By contrast patients with hemispheric symptoms less frequently showed dis...
متن کاملComparison of risk factors in patients with transient and prolonged eye and brain ischemic syndromes.
BACKGROUND AND PURPOSE Patients with ischemic stroke, cerebral transient ischemic attacks (TIAs), retinal artery occlusion (RAO), and amaurosis fugax are thought to have similar risk factors and underlying vascular disease. However, if risk factors are different in patients with eye compared with brain symptoms and in those whose symptoms last <24 hours (transient) compared with those lasting >...
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عنوان ژورنال:
- Journal of neurology, neurosurgery, and psychiatry
دوره 40 7 شماره
صفحات -
تاریخ انتشار 1977