Acquired slow-channel syndrome

被引:0
|
作者
Scola, RH [1 ]
Werneck, LC [1 ]
Iwamoto, FM [1 ]
Comerlato, EA [1 ]
Kay, CK [1 ]
机构
[1] Univ Fed Parana, Hosp Clin, Neuromuscular Disorders Div, BR-80069900 Curitiba, Parana, Brazil
关键词
electromyography; myasthenia gravis; neuromuscular junction; slow-channel syndrome;
D O I
10.1002/1097-4598(200010)23:10<1582::AID-MUS16>3.3.CO;2-8
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
We report the case of a 37-year-old man with clinical and electrophysiological features of hereditary slow-channel syndrome (SCS) and antibodies against acetylcholine receptors (AChR-Abs). He presented with weakness of shoulder and hand muscles. A supramaximal single stimulus to the motor nerves disclosed a double compound muscle action potential (CMAP). Repetitive stimulation of ulnar, suprascapular, and median nerves showed a CMAP decrement greater than 10%. The patient responded to pyridostigmine. This report confirms the importance of AChR-Ab titers in suspected cases of hereditary SCS because patients with positive AChR-Abs may have a better response to available treatments. (C) 2000 John Wiley & Sons, Inc.
引用
收藏
页码:1582 / 1585
页数:4
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