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 These traces show typical electrophysiological features of a pre-synaptic neuromuscular transmission disorder in a patient with LEMS. The traces on the.

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Presentation on theme: " These traces show typical electrophysiological features of a pre-synaptic neuromuscular transmission disorder in a patient with LEMS. The traces on the."— Presentation transcript:

1  These traces show typical electrophysiological features of a pre-synaptic neuromuscular transmission disorder in a patient with LEMS. The traces on the left show a small amplitude ulnar CMAP that after exercise increases fourfold in amplitude.  These traces show typical electrophysiological features of a pre-synaptic neuromuscular transmission disorder in a patient with LEMS. The traces on the left show a small amplitude ulnar CMAP that after exercise increases fourfold in amplitude. The traces on the right show repetitive nerve stimulation studies. The amplitude increases post-exercise. Trains 1, 3, and 4 show a decrement of 30% which repairs with exercise (train 2). A Mallik, and A I Weir J Neurol Neurosurg Psychiatry 2005;76:ii23-ii31 ©2005 by BMJ Publishing Group Ltd

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