A Case of Double Depressor Palsy due to Bilateral Thalamic Infarction. |
Myeong In Yeom, Seung Uk Lee, Soo Jin Kim |
1Department of Ophthalmology, Maryknoll Medical Center, Busan, Korea. pearlsj@hanmail.net 2Department of Ophthalmology, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Korea. |
양측 시상경색에 의한 양하전근 마비 |
염명인1⋅이승욱2⋅김수진1 |
Department of Ophthalmology, Maryknoll Medical Center1, Busan, Korea Department of Ophthalmology, Kosin University Gospel Hospital, Kosin University College of Medicine2, Busan, Korea |
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Abstract |
PURPOSE We report a rare case of double depressor palsy after bilateral thalamus infarction. CASE SUMMARY: A 47-year-old male presented with complaints of diplopia upon awakening. He had atrial fibrillation, mitral valve regurgitation, aortic valve regurgitation and a history of spleen infarction 1 year prior. His right eye was hypertrophic and right eye downgaze was limited unilaterally of equal degree in adduction and abduction. Right eye horizontal and upward movements were intact. Left eye movement was intact in all directions. Pupillary light reflex response and convergence test were normal. Nystagmus was not observed. The patient was diagnosed with double depressor palsy of the right eye. Magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) of the brain showed an old infarction of the left thalamus and diffusion MRI showed acute infarction of the right thalamus. The patient's daily warfarin dose was 2 mg and was increased to 5 mg with cilostazol 75 mg two times a day. Seven weeks later, the patient's ocular movement revealed near normal muscle action and, subjectively, the patient was diplopia-free. CONCLUSIONS: Double depressor palsy is a extremely rare disease and can be caused by bilateral thalamic infarction. |
Key Words:
Bilateral paramedian thalamus infarction;Double depression palsy;Monocular depression palsy |
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