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橄榄-桥脑-小脑萎缩伴视网膜变性一家系报告

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摘要 目的 报告一橄榄 -桥脑 -小脑萎缩 (OPCA)伴视网膜变性家系的临床特征。方法 对先证者进行临床、电生理和头颅 MRI检查 ,并对家系遗传规律进行分析研究。结果 此家系 4代中 8例罹患 ,呈常染色体显性遗传 ,存在早现现象。临床表现为进行性视力下降、视网膜变性、眼球运动障碍和小脑性共济失调。先证者视网膜电图示潜伏期延长 ,视觉诱发电位 (VEP)、体感诱发电位 (SEP)和脑干听觉诱发电位 (BAEP)异常 ,事件相关电位 P3 0 0 和 N40 0 正常 ;MRI示桥脑、橄榄体和小脑萎缩。结论  OPCA伴视网膜变性呈常染色体显性遗传 ,呈早现现象。临床主要表现为小脑性共济失调、进行性视力下降、眼肌麻痹和视网膜变性。
出处 《临床神经病学杂志》 CAS 2002年第1期44-45,共2页 Journal of Clinical Neurology
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