AAEE minimonograph #25: Single-fiber electromyography in myasthenia gravis.

@article{Sanders1986AAEEM,
  title={AAEE minimonograph #25: Single-fiber electromyography in myasthenia gravis.},
  author={Donald Sanders and James F Howard},
  journal={Muscle & nerve},
  year={1986},
  volume={9 9},
  pages={809-19}
}
Single-fiber electromyography (SFEMG) demonstrates abnormal jitter in virtually all (99%) patients with myasthenia gravis (MG). One muscle, the extensor digitorum communis, is abnormal in most patients with this disease, but to obtain the maximum diagnostic sensitivity, it may be necessary to examine other muscles, especially ones that are more involved clinically. There is no one muscle that will be more abnormal in every patient with MG. The muscle(s) to be tested must be selected based on… CONTINUE READING