Atrial fibrillation as a novel risk factor for retinal stroke: A protocol for a population-based retrospective cohort study.

Atrial fibrillation as a novel risk factor for retinal stroke: A protocol for a population-based retrospective cohort study.
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心房颤动是视网膜中风的新风险因素:基于人群的回顾性队列研究方案。

DOI:
10.1371/journal.pone.0296251
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发表时间:
2023
期刊:
影响因子:
3.7
通讯作者:
--
中科院分区:
综合性期刊3区
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--
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视网膜中央动脉阻塞(CRAO;视网膜中风或眼中风)是一种未被充分认识的致残性急性缺血性中风,可导致一只眼睛严重视力丧失。 CRAO 的典型危险因素是同侧颈动脉狭窄;然而,近一半的 CRAO 患者没有重度颈动脉狭窄,这表明 CRAO 可能存在其他心血管危险因素。具体而言,先前的研究表明,由潜在心房颤动引起的心源性栓塞可能使患者易患 CRAO。我们在本协议中描述了一项基于人群的观察性研究的设计。我们评估两个具体目标:1)在调整医疗和心血管风险后确定心房颤动是否是 CRAO 的独立危险因素; 2) 确定使用口服抗凝药物是否可以降低心房颤动患者发生 CRAO 的风险。该协议列出了我们的队列定义、病例和对照定义、合并症确定和统计方法的策略。
Central retinal artery occlusion (CRAO; retinal stroke or eye stroke) is an under-recognized, disabling form of acute ischemic stroke which causes severe visual loss in one eye. The classical risk factor for CRAO is ipsilateral carotid stenosis; however, nearly half of patients with CRAO do not have high-grade carotid stenosis, suggesting that other cardiovascular risk factors may exist for CRAO. Specifically, prior studies have suggested that cardioembolism, driven by underlying atrial fibrillation, may predispose patients to CRAO. We describe the design of an observational, population-based study in this protocol. We evaluate two specific objectives: 1) To determine if atrial fibrillation is an independent risk factor for CRAO after adjusting for medical and cardiovascular risk; 2) To determine if use of oral anticoagulation can modify the risk of CRAO for patients with atrial fibrillation. This protocol lays out our strategy for cohort definition, case and control definition, comorbidity ascertainment, and statistical methods.
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