Abstract
We performed single fiber electromyography (SFEMG) in the superior rectus and levator palpebralis (SR-LP) muscles of 17 patients with pure ocular myasthenia gravis (MG) and 9 controls. Thirteen patients were also assessed with SFEMG in the orbicularis oculi (OO) muscle. All the MG patients but none of the control subjects showed abnormal SFEMG jitter in the SR-LP muscles. On the other hand, only 62% of the MG patients had abnormal SFEMG jitter in the OO muscle. The procedure was well tolerated by the patients, and complications were minor. We conclude that SFEMG of the SR-LP muscles is a safe and highly sensitive technique for the diagnosis of ocular MG.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 943-947 |
| Number of pages | 5 |
| Journal | Muscle and Nerve |
| Volume | 18 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1995 |
Keywords
- ocular MG
- ophthalmoparesis
- single fiber electromyography
- SR-LP muscles
ASJC Scopus subject areas
- Clinical Neurology
- Neuroscience(all)
Fingerprint Dive into the research topics of 'Single fiber electromyography of extraocular muscles: A sensitive method for the diagnosis of ocular myasthenia gravis'. Together they form a unique fingerprint.
Cite this
Rivero, A., Crovetto, L., Lopez, L., Maselli, R. A., & Nogues, M. (1995). Single fiber electromyography of extraocular muscles: A sensitive method for the diagnosis of ocular myasthenia gravis. Muscle and Nerve, 18(9), 943-947. https://doi.org/10.1002/mus.880180904