J Neurol Surg B Skull Base 2025; 86(S 01): S1-S576
DOI: 10.1055/s-0045-1803482
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Direct Electromyographic Monitoring of the Lateral Rectus Muscle during Frontotemporal-Orbitozygomatic Approach for Resection of a Superior Orbital Fissure Schwannoma

Rithvik Ramesh
1   University of California, San Francisco, California, United States
,
Maximiliano Nuñez
2   Stanford University, Stanford, California, United States
,
Wesley Shoap
3   Louisiana State University, Baton Rouge, Louisiana, United States
,
Ezequiel Goldschmidt
1   University of California, San Francisco, California, United States
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    The resection of orbital schwannomas is challenged by their proximity to oculomotor cranial nerves. Here, we present a case in which needle electrodes were placed retro-orbitally for electromyographic monitoring of the lateral rectus muscles during a frontotemporal-orbitozygomatic approach for the resection of a large superior orbital fissure schwannoma in a 39-year-old woman presenting with right CN VI palsy and proptosis. Postoperatively, MRI showed near-total resection and her exam demonstrated resolution of the right-sided proptosis.


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    No conflict of interest has been declared by the author(s).

    Publication History

    Article published online:
    07 February 2025

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