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The influence of cold provocation and calcium channel blocker to the optic disc blood flow of patients with primary open-angle glaucoma

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF OCULAR FUNDUS DISEASES
Issue:
2
DOI:
10.3760/cma.j.issn.1671-0290.2000.02.020
Key Word:
青光眼,开角型;脑缺血,暂时性;钙通道阻滞药;血流速度

Abstract: 目的 研究原发性开角型青光眼(primary open-angle glaucoma,POAG)患者在寒冷刺激及服用钙离子通道阻滞剂后视盘血流的变化.方法 用海德堡视网膜血流仪(Heidelberg retinal flowmetry,HRF)分别测量POAG患者与正常个体视盘筛板区微血管在基础状态下、手指冷激发试验后及含服硝苯吡啶后的血流情况.结果 POAG患者在冷激发试验后视盘平均血管容积及平均血流量分别由27.1与545.4降至22.3与452.4(P<0.05),在含服硝苯吡啶后平均血管容积及平均血流量分别升至29.0与579.5(P<0.05).有手足发冷史的POAG患者在冷激发条件下视盘血流平均下降值为137.2,在含服硝苯吡啶后视盘血流平均增加值为196.4,与无手足发冷史的POAG患者比较差异均有显著性意义(P<0.05).结论 POAG患者视盘血流受冷刺激后明显下降.钙离子通道阻滞剂可提高部分POAG患者即时视盘血流.手足发冷史与POAG患者的血流变化有密切关系.

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