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    Ant-2 Glycoprotein I Antibodies in Children with Rheumatologic Disorders
    (Springer India, 2019) Azarsiz, Elif; Eman, Gamze; Akarcan, Sanem Eren; Severcan, Ezgi Ulusoy; Karaca, Neslihan; Aksu, Guzide; Kutukculer, Necil
    Anti-beta-2-glycoprotein I antibodies (anti-2GPI) which are the main antiphospholipid antibodies that characterize the autoimmune antiphospholipid syndrome are pathogenic and are contributing to thrombosis. We aimed to evaluate the presence and the diagnostic importance of these antibodies in children with different rheumatologic diseases with or without thrombosis risk. A total of 100 children with different rheumatologic diseases evaluated retrospectively. The mean anti-2GPI IgG (p=0.108), IgA (p=0.547), and IgM (p=0.807) levels showed no statistically significant difference between different diagnosis groups. But anti-2GPI IgA and IgM levels were higher in SLE patient group. The mean anti-2GPI IgG (p=0.375), IgA (p=0.811), and IgM (p=0.276) levels were not also showed difference between disease groups with/without predisposition to thrombosis even though concentrations were higher in thrombosis group. In children with rheumatological complaints, anti-2GPI antibody measurements should not be the first diagnostic criteria if vasculitis is not thought as the primary defect underlying the clinical symptoms.
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    The Use of Mean Platelet Volume, Plateletcrit, and N-terminal Brain Natriuretic Peptide as Biomarkers of Coronary Artery Involvement in Atypical Kawasaki Disease
    (Galenos Publ House, 2023) Dogan, Eser; Turan, Caner; Yurtseven, Ali; Eman, Gamze; Saz, Eylem Ulas
    Objective: Coronary artery aneurysm and ectasia develop in approximately 15% to 25% of children with untreated Kawasaki disease (KD). Atypical KD has a higher incidence of coronary artery involvement compared to typical KD. Our aim in this study was to identify new markers to support early diagnosis and prevent complications associated with delayed treatment in atypical KD. Method: The patients' demographic characteristics, presenting complaints, clinical findings, mean platelet volume (MPV), plateletcrit (PCT), and N-terminal brain natriuretic peptide (NT-proBNP) levels were analyzed. Coronary artery abnormalities were evaluated using two-dimensional echocardiography. Results are expressed as mean (+/- standard deviation). Results: Sixty children between the ages of 3 and 96 months who were diagnosed with atypical KD were included. Forty consecutive normal children were included as a control group. NT-proBNP, MPV, and PCT values were 381.7 (+/- 272.7 ) pg/mL, 5.8 (+/- 0.93 ) fL, and 0.266% (+/- 0.9 2%) in the patient group and 48.5 (+/- 28.5 ) pg/mL, 8.29 (+/- 1.12 ) fL, and 0.227% (+/- 0.7 8%) in the control group, respectively (p<0.00 1 for all). In the comparison of atypical KD patients with coronary artery involvement (CAI subgroup) and without (non-CAI subgroup), the NT-proBNP values in these subgroups were 542.9 (+/- 226.8 ) and 171 (+/- 161.7 ) pg/mL (p<0.001), MPV values were 5.8 (+/- 0.77 ) and 6.54 (+/- 0.95 ) fL (p<0.005), and PCT values were 0.264% (+/- 0. 1%) and 0.269% (+/- 0.0 8%), respectively. Conclusion: The simultaneous evaluation of MPV, PCT, and NT-proBNP was useful for the diagnosis of atypical KD. NT-proBNP and MPV can be used as markers of CAI in atypical KD.