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    Assessment of early atherosclerotic findings in patients with nasal polyposis
    (Elsevier Sci Ltd, 2014) Sagit, Mustafa; Sarli, Bahadir; Guler, Sabri; Namuslu, Mehmet; Celik, Huseyin Tugrul; Kurtul, Serkan; Korkmaz, Ferhat
    Objective: To investigate early markers of atherosclerosis in patients with nasal polyposis (NP) through measurements of carotid artery intima-media thickness (CIMT), flow-mediated vasodilatation (FMD) of the brachial artery and serum paraoxonase-1 (PON-1) activity. Methods: Forty-five patients with NP were included in the study group and 45 healthy individuals in the control group. The diagnosis of patients with NP was predicated on anterior rhinoscopy, endoscopic nasal examination and coronal paranasal sinus computed tomography (CT). Measurements of CIMT and FMD of the brachial artery were performed by high-resolution ultrasonography. Serum PON-1 activity was evaluated by measuring the rate of paraoxon hydrolysis. Results: Mean CIMT values were found to be increased in the NP group compared to the control group. However, mean FMD % values and serum PON-1 activity were significantly lower in the NP group compared to the control group. Moreover; the endoscopic polyps' scores and paranasal sinus CT scores were positively correlated with CIMT and negatively correlated with FMD % values and PON-1 activity. Disease duration also was positively correlated with CIMT and negatively correlated with FMD % values. Conclusion: Impaired FMD, increased CIMT and decreased serum PUN-1 activity may be considered to be risk factors for accelerated atherosclerosis in patients with NP who may have subclinical atherosclerosis and be at risk for cardiovascular events in the future. (c) 2013 Elsevier Ireland Ltd. All rights reserved.