The prognosis of carotid siphon stenosis
| Autor: | Joerg Kistler, Kenneth R. Davis, L R Wechsler, M J Kaminski |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Adult
Carotid Artery Diseases medicine.medical_specialty medicine.medical_treatment Constriction Pathologic Asymptomatic medicine.artery medicine Humans cardiovascular diseases Stroke Endarterectomy Aged Retrospective Studies Advanced and Specialized Nursing medicine.diagnostic_test business.industry Middle Aged medicine.disease Prognosis Cerebral Angiography Stenosis Cerebrovascular Disorders Carotid Arteries Ischemic Attack Transient Cavernous sinus Angiography Neurology (clinical) Radiology Internal carotid artery medicine.symptom Cardiology and Cardiovascular Medicine business Cerebral angiography Follow-Up Studies |
| Zdroj: | Stroke. 17(4) |
| ISSN: | 0039-2499 |
| Popis: | We retrospectively reviewed the clinical course and angiograms of 15 patients with carotid siphon stenosis of 50% or greater. Fourteen had less than 50% stenosis at the origin of the ipsilateral internal carotid artery, and one had a greater degree of stenosis but underwent endarterectomy after an initial angiogram. Angiograms were examined for evidence of hemodynamic abnormalities in addition to residual lumen diameter. Seven patients initially had TIAs, 5 had strokes, and 3 were asymptomatic. In an average followup of 51 months (range 4-123 months) subsequent cerebral ischemic events occurred in 6 (40%), but only 1 had a stroke with a persisting neurological deficit that could be directly attributed to the siphon stenosis. Stenoses were hemodynamically significant by angiography in 5 of 7 TIA patients, and only 1 of 5 stroke patients. The incidence of subsequent ischemic events in this study was similar to 2 previous studies of siphon stenosis, however in this study most of the events ipsilateral to the siphon stenosis were TIAs or minor strokes. The association of hemodynamic angiographic abnormalities and initial TIAs but not strokes suggests that the mechanism producing ischemic symptoms may differ in patients with TIA and stroke who have carotid siphon stenosis. |
| Databáze: | OpenAIRE |
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