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Abducens Nerve Palsy Due to Neurovascular Compression
1Department of Neurosurgery, Koto Memorial Hospital, Higashiohmi, Shiga, Japan.
World Neurosurgery
|July 14, 2023
Summary
Neurovascular compression (NVC) can cause abducens nerve palsy. Microvascular decompression (MVD) surgery showed favorable outcomes in patients with NVC-related abducens nerve palsy, suggesting it as a potential treatment.
Area of Science:
- Neurology
- Neurosurgery
Background:
- Neurovascular compression (NVC) is an infrequent cause of abducens nerve palsy.
- The efficacy of microvascular decompression (MVD) for this condition is unclear.
Purpose of the Study:
- To analyze clinical characteristics of abducens nerve palsy caused by NVC.
- To assess the indication for MVD in these cases.
Main Methods:
- Review of 22 cases (20 from literature, 2 own cases) of abducens nerve palsy due to NVC.
- Analysis of clinical presentation and treatment outcomes.
Main Results:
- All patients had NVC as the sole cause of isolated abducens nerve palsy.
- NVC-related palsy presented with gradual onset, unlike typical cases.
- Conservative treatment showed no improvement; MVD in 6 patients yielded favorable outcomes.
Conclusions:
- Vascular compression is a potential cause of abducens nerve palsy.
- MVD should be considered for abducens palsy with gradual onset and confirmed vascular compression.
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