...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of neurology >Disjunctive saccades during smooth pursuit eye movements in ocular myasthenia gravis.
【24h】

Disjunctive saccades during smooth pursuit eye movements in ocular myasthenia gravis.

机译：重视性重症肌无力平滑追踪眼球运动期间的分离性扫视。

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Sirs: One of the unique clinical signs of ocular myasthenia gravis (MG) is that saccade velocities remain unimpaired despite a reduced range of movement. In addition, small amplitude saccades may be hypermetric with high velocities appearing clinically as "quiver" movements which are thought to be characteristic of MG. Saccades may be abnormal due to neuromuscular fatigue with intra-saccadic slowing or selective involvement of specific extraocular muscle fibers. The latter hypothesis states that muscle fibers generating high speed movements (pale twitch fibers) maybe relatively spared, while muscle fibers responsible for maintenance of eccentric gaze (non-twitch fibers) are severely affected . Using phase-plane analysis, the conjugacyof the binocular initial components of saccades in MG patients with pseudo-internuclear ophthalmoplegia has recently been taken as evidence for selective sparing of pale global fibers in MG.
机译：主席先生：重视性重症肌无力（MG）的独特临床症状之一是，尽管运动范围减少，扫视速度仍保持不变。另外，小幅度扫视可能是超高速的，在临床上以“颤动”运动的高速度出现，这被认为是MG的特征。由于神经肌肉疲劳伴有眼内声速减慢或特定眼外肌纤维的选择性累及，扫视可能是异常的。后一种假设指出，产生高速运动的肌肉纤维（苍白的抽搐纤维）可能比较省钱，而负责维持偏心注视的肌肉纤维（非抽搐纤维）则受到严重影响。使用相平面分析，最近已将MG患者假性间核眼肌麻痹患者双眼的双眼初始成分共轭，作为选择性保留MG中苍白全局纤维的证据。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号