Kamis?i S.Kamişli Ö.Teker U.Kablan Y.Saraç K.Oz?can C.2024-08-042024-08-0420121301-1375https://doi.org/10.5505/tbdhd.2012.36844https://hdl.handle.net/11616/91321PURPOSE: Carotid artery disease, strokes due to hypoperfusion and embolism is composed of two mechanisms, the brain collateral circulation has an important role in the prevention of stroke. We investigated the Circle of Willis anomalies in the anterior circulation ischemic stroke related with carotid artery disease who had transient ischemic attack or ischemic stroke. MATERIAL AND METHODS: The patients whose circle of Willis anomalies in the digital subtraction angiographies fully evaluated in the first week of neurological symptoms included to this study. The relationship between the severity of symptomatic carotid artery stenosis was evaluated with variety of anomalies. Patients with stenosis and posterior cerebral artery first divison hypoplasia or aplasia in the same side had statistical lower stenosis percentages with patients those without this anomaly (p <0.013). CONCLUSION: The existence of Circle of Willis anomalies are as important as the degree of stenosis in symptomatic carotid artery disease. This situation can be considered when treatment decisions.trinfo:eu-repo/semantics/closedAccessCarotid artery diseaseCircle of WillisIschemic strokeArticle1816910.5505/tbdhd.2012.368442-s2.0-84868551506N/A