KMID : 0360220210620101420
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Journal of the Korean Ophthalmological Society 2021 Volume.62 No. 10 p.1420 ~ p.1427
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Analysis of Early Neuroimaging Results in Patients with Acute Isolated Ocular Motor Nerve Palsy
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Jeong Da-Eun
Kim Dae-Hyun
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Abstract
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Purpose: To evaluate the efficacy of early neuroimaging in patients with acute isolated 3rd, 4th, and 6th nerve palsy.
Methods: Neuroimaging tests were performed in patients >50 years old with acute isolated 3rd, 4th, and 6th nerve palsy. The frequencies and types of abnormal findings were evaluated. All patients were divided into ischemic and non-ischemic groups and differences in clinical characteristics between groups were analyzed.
Results: Of the 55 patients, nine (16.4%) had abnormal findings on brain imaging. Among 26 patients with 6th nerve palsy, four (15.4%) were found to have a cause including brain tumor, cerebrovascular compression, carotid cavernous fistula. Superior oblique muscle atrophy was found in two of 19 patients (10.5%) with 4th nerve palsy. Three of 10 patients (30%) with 3rd nerve palsy had abnormal findings and there were cases of pituitary apoplexy, posterior communicating, and cerebrovascular compression.
Conclusions: In patients with acute isolated oculomotor paralysis, early neuroimaging tests play an important role in differential diagnosis and evaluation of causes that may lead to mortality.
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KEYWORD
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Cranial nerve diseases, Isolated, Magnetic resonance imaging, Neuroimaging
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