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Neurology Aug 2022
Topics: Amaurosis Fugax; Blindness; Embolism; Humans; Retinal Artery Occlusion
PubMed: 35750495
DOI: 10.1212/WNL.0000000000200890 -
Cureus Aug 2023In this case report, we highlight a case of a 24-year-old primigravida who suffered a sudden and painless loss of vision and headache in the immediate postpartum period....
In this case report, we highlight a case of a 24-year-old primigravida who suffered a sudden and painless loss of vision and headache in the immediate postpartum period. Vision loss was transient and remarkable. Her brain magnetic resonance imaging revealed vasogenic edema in parieto-occipital white matter, suggestive of posterior reversible encephalopathy syndrome. Posterior reversible encephalopathy syndrome is a clinical-radiological entity, having hemodynamic catastrophe also known as reversible posterior cerebral edema syndrome. It tends to occur during pregnancy complicated by eclampsia. Hypertension and a hypercoagulable tendency tend to engulf the entire homeostasis into its deadly clutches sending the autoregulation into a frizzy. It presents with a gamut of red flags like headache, seizures, encephalopathy, amaurosis fugax, cortical visual disturbances, and even blindness. Clinical improvement was seen with supportive treatment in this patient. Thus, timely diagnosis and intervention help reverse the dire consequences.
PubMed: 37727199
DOI: 10.7759/cureus.43703 -
The Western Journal of Medicine Mar 1975
PubMed: 18747509
DOI: No ID Found -
Australian Journal of Ophthalmology Nov 1983
Topics: Arteriosclerosis; Blindness; Carotid Artery Diseases; Carotid Artery, Internal; Embolism; Humans; Male
PubMed: 6667206
DOI: 10.1111/j.1442-9071.1983.tb01103.x -
The Pediatric Infectious Disease Journal Apr 2014
Topics: Albendazole; Amaurosis Fugax; Anticestodal Agents; Brain; Child; Humans; Magnetic Resonance Imaging; Male; Neurocysticercosis
PubMed: 24632665
DOI: 10.1097/INF.0000000000000211 -
Deutsche Medizinische Wochenschrift... Jul 2001
Topics: Adult; Amaurosis Fugax; Carotid Artery, Internal; Diagnosis, Differential; Fluorescein Angiography; Humans; Male; Migraine Disorders; Smoking; Time Factors; Visual Acuity
PubMed: 11512287
DOI: 10.1055/s-2001-16014 -
American Journal of Ophthalmology May 2001To describe an important symptom of bilateral amaurosis precipitated by exposure to bright light.
PURPOSE
To describe an important symptom of bilateral amaurosis precipitated by exposure to bright light.
METHODS
Case report. Clinical analysis of transient, painless, asymmetrical visual loss occurring in bright light in a 54-year-old man.
RESULTS
Carotid ultrasound showed bilateral carotid disease. Carotid angiography demonstrated occlusion of the left internal carotid artery and severe stenosis of the right internal carotid artery and both external carotid arteries. Visual symptoms and an abnormal photostress test completely remitted after a right carotid endarterectomy.
CONCLUSION
Light-induced amaurosis is an unfamiliar manifestation of ocular ischemic syndrome occurring with severe, often bilateral, carotid artery disease. Its recognition is important because the complaint is associated with severe carotid occlusive disease and recognition is necessary for timely surgical intervention because of the major risk for stroke.
Topics: Amaurosis Fugax; Angiography; Carotid Artery, External; Carotid Artery, Internal; Carotid Stenosis; Endarterectomy, Carotid; Humans; Light; Male; Middle Aged; Visual Acuity
PubMed: 11336956
DOI: 10.1016/s0002-9394(00)00874-6 -
Cureus Aug 2022In amaurosis fugax, there is a sudden loss of vision in one eye. Patients gain their vision after a few minutes. The most common underlying cause is atherosclerosis of...
In amaurosis fugax, there is a sudden loss of vision in one eye. Patients gain their vision after a few minutes. The most common underlying cause is atherosclerosis of the internal carotid artery. Other underlying causes include vasospasm of the internal carotid artery, which leads to hypoperfusion and is seen in vasculitis, ocular migraines, and systemic lupus erythematosus. In this case study, a 44-year-old male with a past medical history of migraine with aura presented to the emergency room with transient vision loss in the left eye, which lasted for two minutes. A computed tomography scan of the brain was negative for stroke. The patient was treated with intravenous fluid, aspirin, and enoxaparin sodium and instructed to follow up with neurology. A medical emergency such as amaurosis fugax caused by ocular migraine must be managed aggressively, and prompt imaging is necessary to exclude other causes.
PubMed: 36158378
DOI: 10.7759/cureus.28272 -
The British Journal of Ophthalmology Nov 1992Nine young adults (median age 19.5 years) who suffered from amaurosis fugax (AF) are described. The attacks of AF were short in duration and preceded by premonitory...
Nine young adults (median age 19.5 years) who suffered from amaurosis fugax (AF) are described. The attacks of AF were short in duration and preceded by premonitory symptoms in five cases and by a migrainous headache in two. In five patients the visual loss progressed in a lacunar pattern unlike the 'curtain' pattern characteristic of AF in older patients. Investigation revealed no evidence of an embolic or atheromatous aetiology. In two cases a minor abnormality was found on echocardiography. We conclude that AF in young adults has a different clinical pattern and may have a different aetiology, possibly migrainous, compared with that seen in older patients. The pattern of visual loss in some of the cases suggests that the choroidal circulation rather than the retinal circulation is primarily affected.
Topics: Adolescent; Adult; Blindness; Child; Female; Follow-Up Studies; Humans; Male; Migraine Disorders; Prospective Studies; Time Factors; Visual Fields
PubMed: 1477040
DOI: 10.1136/bjo.76.11.660 -
Clinical Ophthalmology (Auckland, N.Z.) 2016The purpose of this study was to describe clinical characteristics and prevalence of carotid stenosis in patients with amaurosis fugax (AF).
PURPOSE
The purpose of this study was to describe clinical characteristics and prevalence of carotid stenosis in patients with amaurosis fugax (AF).
METHOD
Patients diagnosed with AF and subjected to carotid ultrasound in 2004-2010 in Sahlgrenska University Hospital, Gothenburg (n=302), were included, and data were retrospectively collected from medical records.
RESULTS
The prevalence of significant carotid stenosis was 18.9%, and 14.2% of the subjects were subjected to carotid endarterectomy. Significant associations with risk of having ≥70% stenosis were male sex (adjusted odds ratio [aOR]: 2.62; 95% confidence interval [CI]: 1.26-5.46), current smoking (aOR: 6.26; 95% CI: 2.62-14.93), diabetes (aOR: 3.68; 95% CI: 1.37-9.90) and previous vasculitis (aOR: 10.78; 95% CI: 1.36-85.5). A majority of the patients (81.4%) was seen by an ophthalmologist prior to the first ultrasound. Only 1.7% of the patients exhibited retinal artery emboli at examination.
CONCLUSION
The prevalence of carotid stenosis among patients with AF is higher than has previously been demonstrated in stroke patients. An association with previously reported vascular risk factors and with vasculitis is seen in this patient group. Ocular findings are scarce.
PubMed: 27826182
DOI: 10.2147/OPTH.S115656