title: Mean Platelet Volume in Patients with Nonarteritic Anterior Ischemic Optic Neuropathy.
abstract: Objective. We aimed to investigate the mean platelet volume (MPV) of the patients with nonarteritic anterior ischemic optic neuropathy (NAION). Methods. The medical records of 46 patients with the diagnosis of NAION and 90 control subjects were retrospectively evaluated. All participants underwent complete ocular examination including intraocular pressure (IOP) measurement. Hematocrit, MPV, hemoglobin, and platelet levels of the patients with NAION were compared with those of control subjects. Results. There was no significant difference between the groups in platelet counts (p = 0.76). NAION group had significantly higher MPV values (8.25 ± 1.26 fL) than that of control subjects (7.64 ± 1.01 fL) (p < 0.001). Multivariate logistic regression analysis showed that MPV is an independent predictor of NAION (odds ratio = 1.61; 95% confidence interval (CI) = 1.13-2.28; p = 0.007). The mean IOP was significantly higher in NAION group (p < 0.001). IOP was also found as an independent predictor of NAION according to the regression analysis (OR = 1.27; 95% CI = 1.08-1.48; p = 0.003). Conclusion. Our results demonstrated that the MPV values were significantly higher in NAION patients, suggesting that larger platelets may contribute to the pathogenesis of the NAION.
authors.affiliation: School of Medicine, Department of Ophthalmology, Dicle University, 21280 Diyarbakir, Turkey.
authors.forename: Muhammed
authors.initials: M
authors.lastname: Şahin
authors.affiliation: School of Medicine, Department of Ophthalmology, Dicle University, 21280 Diyarbakir, Turkey.
authors.forename: Alparslan
authors.initials: A
authors.lastname: Şahin
authors.affiliation: School of Medicine, Department of Immunology, Dicle University, 21280 Diyarbakir, Turkey.
authors.forename: Bilal
authors.initials: B
authors.lastname: Elbey
authors.affiliation: School of Medicine, Department of Ophthalmology, Dicle University, 21280 Diyarbakir, Turkey.
authors.forename: Harun
authors.initials: H
authors.lastname: Yüksel
authors.affiliation: School of Medicine, Department of Ophthalmology, Dicle University, 21280 Diyarbakir, Turkey.
authors.forename: Fatih Mehmet
authors.initials: FM
authors.lastname: Türkcü
authors.affiliation: School of Medicine, Department of Ophthalmology, Dicle University, 21280 Diyarbakir, Turkey.
authors.forename: Abdullah Kürşat
authors.initials: AK
authors.lastname: Cingü