• Banu Kara Kivanc, Emel Gönüllü, Olga Meltem Akay, Adem Ertürk, Cengiz Bal, Döndü Üskudar Cansu, and Cengiz Korkmaz.
• Division of Rheumatology, Department of Internal Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey.
• Clin Exp Rheumatol. 2018 Nov 1; 36 (6 Suppl 115): 63-67.

ObjectivesTo investigate whether there is a difference between male and female patients with Behçet's disease (BD) in terms of hypercoagulability by using modified rotational thromboelastograhic (ROTEM) analysis.Methods126 BD patients (71 male, 55 female; mean age: 41±9 yrs) who met ISSG criteria for BD were included into the study. 23 patients with vasculitis (16 female, 7 male; mean age 49±16 yrs), and 25 healthy individuals (11 female, 14 male; mean age: 37±10 yrs) were included to the study as disease and healthy control (HC) group, respectively. Clotting time (CT), clot formation time (CFT) and maximum clot firmness (MCF) were determined by INTEM and EXTEM analyses. As a marker of vascular endothelial injury, along with inflammatory markers, vWFag levels were investigated in patients and HC group.ResultsExtem-CFT was shorter in only vasculitic group compared to HC group. Intem-CFT was found to be shorter in BD patients and vasculitis group compared to HC. Intem-MCF was significantly longer in male BD patients than female BD patients. Extem-CFT was found to be shorter in male BD patients compared to female BD patients. Extem-MCF was statistically longer in male BD patients. In inactive male BD patients, while Intem-CFT was shorter than HC individuals, Intem-MCF and Extem-MCF were statistically longer than HC (p<0.02, p<0.03), respectively. However, no significant differences were found between inactive female BD patients and HC in terms of all ROTEM parameters.ConclusionsThese results support that male BD patients have a hypercoagulable state compared to female BD patients, which may explain why male patients are prone to thrombotic complications.

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