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J Ophthalmol. 2013;2013:236371. doi: 10.1155/2013/236371. Epub 2013 May 28.

The mean platelet volume in patients with retinal vein occlusion.

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Department of Ophthalmology, School of Medicine, Dicle University, 21280 Diyarbakır, Turkey.


Background. The aim of this study was to investigate the mean platelet volume (MPV) of patients with retinal vein occlusion (RVO). Methods. Hundred and ninty-three patients with the diagnosis of RVO and 83 healthy control subjects were included in this retrospective study. Retinal vein occlusion was diagnosed based on clinical examination. All patients and control subjects underwent complete ocular examination. MPV, hematocrit, hemoglobin, and platelet count of the participants were recorded. The data of patients with RVO was compared with the control subjects. Results. Patients with RVO had significantly higher MPV values (8.19 ± 1.22 fL) compared with the control subjects (7.68 ± 1.11 fL) (P = 0.004). No significant difference was found in platelet counts between RVO group and the control group (275.77 ± 70.87 10(9)/L and 261.96 ± 59.40 10(9)/L, resp., P = 0.161), Mean platelet volume was an independent predictor of RVO (odds ratio (OR) = 1.43; 95% confidence interval (CI) = 1.09-1.89; P = 0.011). Conclusion. Our results demonstrated that the MPV values were significantly higher in patients with RVO, suggesting that larger platelets may contribute to the pathogenesis of the RVOs.

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