Journal of Otolaryngology and Ophthalmology of Shandong University ›› 2020, Vol. 34 ›› Issue (4): 5-10.doi: 10.6040/j.issn.1673-3770.1.2020.048

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Application progress of thrombolysis in retinal artery occlusionYANG Ming Overview WEI Wenbin Guidance Beijing Tongren Hospital, Capital Medical University / Beijing Tongren Eye Center / Beijing key Laboratory of Intraocular Tumor Diagnosis and Treatment / Beijing Ophthalmology&Visual Sciences Key Lab / Medical Artificial Intelligence Research and Verification Key Laboratory of the Ministry of Industry and Information Technology, Beijing 100730, ChinaAbstract:

Central retinal artery occlusion(CRAO)is the most common cause of acute vision loss. Thrombolysis is a more radical treatment than conservative treatment, including arterial thrombolysis and intravenous thrombolysis, as well as the combination therapy of thrombolysis and other therapies. Thrombolysis treatment can improve the visual acuity of CRAO patients, but because of its lack of randomized controlled trials, further clinical studies are needed to determine their efficacy and safety. Our review summarized the application progress of thrombolysis in recent ten years, further evaluated its safety and effectiveness, and provided an evidence for clinical application.   

  1. Key words: Thrombolysis;
    Retinal artery occlusion/therapy;
    Arterial thrombolysis;
    Intravenous thrombolysis视网膜动脉阻塞是类似于脑卒中的临床眼科急症, 其发病原因可能是栓子栓塞、血栓形成、动脉痉挛及受压等, 每年发病率约1/100 000[1], 临床表现为突发单眼无痛的视觉丧失, 如果不及时进行临床干预, 约80%的患者进展到视力为20/400或更低[2], RAO最常见的原因是栓子栓塞视网膜动脉, 溶栓治疗即激发纤溶系统, 将包裹于原发性栓子的血性栓塞物及单纯性血栓溶解而使栓子变小甚至消失, 最大减少缺血受损范围[3], 既往的研究表明, 视力恢复的程度往往与发生视网膜缺血的总时间相关。Hayreh等[4]报道, 当视网膜缺血时间超过4 h, 视网膜组织RGC细胞会发生不可逆的形态学变化, 随着缺血时间增加, 视功能及神经组织的损害更严重。
  • Received:2019-05-26 Online:2020-07-20 Published:2020-08-28

Abstract: Central retinal artery occlusion(CRAO)is the most common cause of acute vision loss. Thrombolysis is a more radical treatment than conservative treatment, including arterial thrombolysis and intravenous thrombolysis, as well as the combination therapy of thrombolysis and other therapies. Thrombolysis treatment can improve the visual acuity of CRAO patients, but because of its lack of randomized controlled trials, further clinical studies are needed to determine their efficacy and safety. Our review summarized the application progress of thrombolysis in recent ten years, further evaluated its safety and effectiveness, and provided an evidence for clinical application.

Key words: Thrombolysis, Retinal artery occlusion/therapy, Arterial thrombolysis, Intravenous thrombolysis

CLC Number: 

  • R765.21
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[1] ObjectiveTo compare the effects of intra-arterial thrombolysis and traditional treatment in central retinal artery occlusion(CRAO). MethodsWe searched the Pubmed, Embase, Clinical.gov, CNKI, and Wan Fang databases for related studies that were published up to May 14, 2020. We included clinical controls that compared intra-arterial thrombolysis and conventional treatment in CRAO. The random effect model and R software were used for data analysis. ResultsWe identified seven studies including 563 CRAO patients. Meta-analysis results of two randomized controlled trials(RCTs)showed that there was no significant difference in visual acuity improvement between CRAO patients treated with arterial thrombolysis therapy and those with conventional therapy(RR: 1.17, 95% confidence interval 0.80-1.72, P=0.409). Meta-analysis results of five cohort studies indicated that compared with conventional therapy, arterial thrombolysis therapy significantly improved visual acuity(RR: 1.86, 95% confidence interval 1.43-2.41, P<0.001). The difference between thrombolysis therapy and conventional therapy may be caused by the different treatment time windows in patients. Concerning the adverse reactions after treatment, two RCTs and five cohort studies showed that the adverse reactions in the thrombolysis group are significantly higher than those in the conventional treatment group. ConclusionAlthough intra-arterial thrombolysis therapy has therapeutic potential in CRAO patients, there is still insufficient clinical evidence to prove its effectiveness and safety. Further studies with a large sample and high quality RCTs are required.. Intra-arterial thrombolysis for central retinal artery occlusion: a Meta-analysisCHEN Xi, LI Shanshan, ZHAO Lu, YOU Ran, WANG Yanling Department of Ophthalmology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, ChinaAbstract: [J]. Journal of Otolaryngology and Ophthalmology of Shandong University, 2020, 34(4): 28-34.
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