Browsing by Author "Unal, Orcun"

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    Carotid artery plaque structure in the context of symptomatic/asymptomatic nature of carotid artery stenosis
    (CZECH SOC CARDIOLOGY \& CZECH SOC CARDIOVASCULAR SURGERY, 2021-01-01) Oztas, Didem Melis; Bilen, Bukem Tanoren; Sener, Leyla Turker; Beyaz, Metin Onur; Ulukan, Mustafa Ozer; Unal, Orcun; Unlu, Mehmet Burcin; Reis, Paulo Eduardo Ocke; Ugurlucan, Murat
    Objective: In this paper, we examined the relationship between atherosclerotic plaque characteristics and symptomatic carotid artery disease. Material and methods: Twenty-two patients who underwent carotid endarterectomy were enrolled into the study. Thirteen patients were male and remaining 9 patients were female. The mean age was 60.2 +/- 9.6 years. The carotid artery stenosis ranged between 75\% and 99\%. Eight patients were asymptomatic and remaining 14 patients were symptomatic. Ten patients suffered stroke. One of them had recurrent transient ischemic attacks, 4 patients had dizziness, and one of them had amaurosis fugax. The extracted plaques were evaluated by scanning acoustic microscopy (SAM) and micro-computerized tomography (micro-CT). Results: Smaller acoustic impedance values that reveal collagen-rich plaque formation were detected in patients who had stroke, while higher acoustic impedance values that reveal calcium-rich plaque formation were detected in the asymptomatic patients' plaques. Conclusions: Determination of plaque characteristics with modern radiographic techniques, rather than relying on the degree of stenosis in patients with carotid artery disease, may be helpful to discriminate patients requiring intervention.