目的：比较中心视网膜静脉闭塞(rvo)住院患者与无rvo住院患者的心肌梗死(MI)和脑血管意外(CVA)的发生率。

Objective To compare the incidence rates of myocardial infarction (MI) and cerebrovascular accident (CVA) in hospitalized patients with and without branch or central retinal vein occlusion (RVO).

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w（新的TIA定义为：由于脑、脊髓或视网膜局灶性缺血引起的、未伴发急性梗死的短暂性神经功能障碍。）

Transient ischemic attack (TIA):a transient episode of neurological dysfunction caused by focal brain, spinal cord, or retinal ischemia, without acute infarction.

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