Kimura K, Hashimoto Y, Ohno H, Uchino M, Ando M
Department of Cerebrovascular Disease, Kumamoto City Hospital.
Intern Med. 1996 Dec;35(12):937-40. doi: 10.2169/internalmedicine.35.937.
Embolization from the carotid bifurcation has been proposed as the most common cause of central retinal artery occlusion (CRAO) and branch retinal artery occlusion (BRAO). The purpose of this study was to evaluate carotid artery disease in patients with CRAO and BRAO. Using carotid ultrasonography, 17 patients (13 males, 4 females, mean age 68.7 +/- 7.1 years) with CRAO and BRAO were examined for stenotic findings and plaque morphology (homogeneous or heterogeneous) within 7 days after onset. The internal carotid artery (ICA) ipsilateral to the affected side showed a significantly higher incidence of severe carotid stenosis as compared to the non-affected side. The occurrence of heterogeneous plaques in the ICA did not differ between the affected and the non-important affected side. We suspect that severe carotid stenosis in addition to heterogeneous plaques plays an important role in retinal artery occlusion.
来自颈动脉分叉处的栓子已被认为是视网膜中央动脉阻塞（CRAO）和视网膜分支动脉阻塞（BRAO）最常见的病因。本研究的目的是评估CRAO和BRAO患者的颈动脉疾病。采用颈动脉超声检查，对17例（13例男性，4例女性，平均年龄68.7±7.1岁）CRAO和BRAO患者在发病后7天内进行狭窄情况及斑块形态（均匀或不均匀）检查。患侧同侧颈内动脉（ICA）重度颈动脉狭窄的发生率明显高于未患侧。ICA中不均匀斑块的出现情况在患侧和非重要患侧之间没有差异。我们怀疑除了不均匀斑块外，重度颈动脉狭窄在视网膜动脉阻塞中起重要作用。
