Lateralizing value of epileptic nystagmus |
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| Affiliation: | 1. Medical University of Vienna, Department of Internal Medicine II, Division of Cardiology, Vienna, Austria;2. Medical University of Vienna, Department of Surgery, Division of Cardiac Surgery, Vienna, Austria;3. Medical University of Innsbruck, Department of Internal Medicine III, Innsbruck, Austria;4. Thermenklinikum Mödling, Department of Internal Medicine, Mödling, Austria;5. University Hospital St. Pölten, Department of Internal Medicine III, St. Pölten, Austria;6. Landesklinikum Wiener Neustadt, Department of Internal Medicine III, Wiener Neustadt, Austria;7. Kepler University Hospital Linz, Department of Internal Medicine I, Linz, Austria;8. Ordensklinikum Linz, Department of Internal Medicine I, Linz, Austria;9. Wilhelminen Hospital Vienna, Department of Internal Medicine III, Vienna, Austria;1. Department of Cerebrovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan;2. Department of Neurology, National Cerebral and Cardiovascular Center, Suita, Japan |
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| Abstract: | Epileptic nystagmus is a relatively rare clinical seizure presentation. The direction is usually determined by the fast component of the eye movement. We retrospectively reviewed 1838 consecutive patients admitted to the Epilepsy Monitoring Unit at Cleveland Clinic and identified 9 patients (0.5%) with epileptic nystagmus. Only two of them were adults. The direction of the nystagmus was contralateral to the epileptogenic zone in all patients. In contrast, eye version was seen ipsiversive to the epileptic nystagmus in four of the six patients in whom both signs were observed. Epileptic nystagmus is a helpful lateralizing sign, particularly in pediatric patients. |
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