التفاصيل البيبلوغرافية
| العنوان: |
Cyclic (alternate day) vertical deviation—possible forme fruste of ocular neuromyotonia. |
| المؤلفون: |
Roper-Hall, Gill, Cruz, Oscar A., Espinoza, Gabriela M., Chung, Sophia M. |
| المصدر: |
Journal of AAPOS; Jun2013, Vol. 17 Issue 3, p248-252, 5p |
| مستخلص: |
Purpose: Cyclic ocular deviations are relatively uncommon and are seldom seen in adults. We report 3 adult patients with cyclic hypotropia that has clinical characteristics similar to neuromyotonia, suggesting a possible common etiology. Methods: Three consecutive patients with 48-hour cyclic hypotropia underwent full neuro-ophthalmologic, oculoplastics, and orthoptic evaluations as well as appropriate medical and neurologic studies. Examinations were arranged on consecutive days on multiple visits to document the cyclic pattern. Results: All 3 patients had sustained contraction of a vertically acting extraocular muscle lasting 24 hours and demonstrated characteristics of ocular neuromyotonia. The contraction was absent for the next 24 hours. Two of the patients had thyroid eye disease; the third patient had unilateral ophthalmoparesis and had subsequent frameless robotic radiosurgery for a cavernous sinus schwannoma. Regular cycles lasting 6, 9, or 14 months were documented by all 3 patients. In 2 patients, treatment with carbamazepine and gabapentin effectively reduced or eliminated the cycle. The cyclic deviation in the third patient resolved spontaneously. Conclusions: On the basis of the response of these patients to membrane-stabilizing medications and the behavior noted as the cycle broke each day, we propose that cyclic vertical strabismus and ocular neuromyotonia may be related conditions with similar underlying physiology.▪ [Copyright &y& Elsevier] |
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| قاعدة البيانات: |
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