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Impaired platelet function in retinal vein occlusions Hideaki Matsuhashi 1 , Mina Nakano 1 , Hiroshi Yoshimoto 1 1Dept of Ophthalmol, Hirosaki Univ Sch of Med pp.253-256
Published Date 1990/3/15
DOI https://doi.org/10.11477/mf.1410908073
  • Abstract
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We evaluated the platelet aggregability in 76 cases of retinal vein occlusion (RVO) comprising 15 cases of central retinal vein occlusion and 61 cases of branch retinal vein occlusion. From a study in 42 healthy subjects as control, we defined hyper-aggregability as secondary aggregation induced by 1 μ M ADP or 0.5 μg/ml collagen.

Increase in platelet aggregability was found in 41 cases (54%) of RVO. Maximum aggregation rates with the method were significantly higher inpatients with RVO than in controls. There was no significant difference in the incidence of platelet hyperaggregability whether the RVO was acute or chronic, whether the RVO was central or branch type, or if the case was associated with background disease or not.

The findings seemed to imply that platelet hyper-aggregability was a risk factor triggering thrombus formation. Antiplatelet therapy would be a rational means to prevent further obliteration of retinal vascular bed and recurrence of RVO.


Copyright © 1990, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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