Epileptic nystagmus: A case report and systematic review
Purpose: We aimed to define the characteristics of epileptic nystagmus and correlate those with other clinical findings in a large number of patients. Methods: We report a patient with epileptic nystagmus and additionally reviewed the reported clinical features of 36 more patients through a systemat...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2014-01-01
|
| Series: | Epilepsy and Behavior Case Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213323214000395 |
| _version_ | 1818365502829887488 |
|---|---|
| author | Sun-Uk Lee Hong-Il Suh Jun Young Choi Kyun Huh Hyo-Jung Kim Ji-Soo Kim |
| author_facet | Sun-Uk Lee Hong-Il Suh Jun Young Choi Kyun Huh Hyo-Jung Kim Ji-Soo Kim |
| author_sort | Sun-Uk Lee |
| collection | DOAJ |
| description | Purpose: We aimed to define the characteristics of epileptic nystagmus and correlate those with other clinical findings in a large number of patients.
Methods: We report a patient with epileptic nystagmus and additionally reviewed the reported clinical features of 36 more patients through a systematic literature search. We analyzed the characteristics of epileptic nystagmus and attempted correlations of those with alertness of the patients and epileptic foci on EEG.
Results: All 33 patients with unilateral horizontal nystagmus showed nystagmus beating away from the side of ictal discharges. Epileptic nystagmus was preceded by gaze deviation in 21 patients, with contraversive in 19 and ipsiversive in 2. Seizures associated with epileptic nystagmus were mostly focal (25/29, 86.2%) with or without loss of awareness. Ictal discharges originated from the occipital (n = 16), parietal (n = 9), temporo-occipital (n = 6), frontal (n = 4), and temporal (n = 3) areas, and two patients had multiple epileptic foci. Seizures were usually symptomatic (24/37, 64.9%). The presence of preceding gaze deviation and midline crossing of the nystagmus did not correlate with the ictal onset zone or alertness of the patients. Recording of epileptic nystagmus was available only in 6 patients, and the epileptic nystagmus could be localized to the saccadic areas in two and to the smooth pursuit areas in another two. Two patients showed the features of epileptic nystagmus from both areas.
Conclusion: Even though the localizing value of epileptic nystagmus seems limited in previous reports, the fast phase of epileptic nystagmus was almost always directed away from the epileptic focus that mostly arose from the posterior part of the cerebral hemisphere. |
| first_indexed | 2024-12-13T22:21:17Z |
| format | Article |
| id | doaj.art-30a9d2a015cf498782019011f2c3b5bf |
| institution | Directory Open Access Journal |
| issn | 2213-3232 |
| language | English |
| last_indexed | 2024-12-13T22:21:17Z |
| publishDate | 2014-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Epilepsy and Behavior Case Reports |
| spelling | doaj.art-30a9d2a015cf498782019011f2c3b5bf2022-12-21T23:29:22ZengElsevierEpilepsy and Behavior Case Reports2213-32322014-01-012C15616010.1016/j.ebcr.2014.08.004Epileptic nystagmus: A case report and systematic reviewSun-Uk Lee0Hong-Il Suh1Jun Young Choi2Kyun Huh3Hyo-Jung Kim4Ji-Soo Kim5Department of Neurology, Ajou University School of Medicine, Ajou University Hospital, Suwon, South KoreaDepartment of Neurology, Ajou University School of Medicine, Ajou University Hospital, Suwon, South KoreaDepartment of Brain Sciences, Ajou University School of Medicine, Suwon, South KoreaDepartment of Neurology, Ajou University School of Medicine, Ajou University Hospital, Suwon, South KoreaDepartment of Biomedical Laboratory Science, Kyungdong University, Goseong, South KoreaDepartment of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South KoreaPurpose: We aimed to define the characteristics of epileptic nystagmus and correlate those with other clinical findings in a large number of patients. Methods: We report a patient with epileptic nystagmus and additionally reviewed the reported clinical features of 36 more patients through a systematic literature search. We analyzed the characteristics of epileptic nystagmus and attempted correlations of those with alertness of the patients and epileptic foci on EEG. Results: All 33 patients with unilateral horizontal nystagmus showed nystagmus beating away from the side of ictal discharges. Epileptic nystagmus was preceded by gaze deviation in 21 patients, with contraversive in 19 and ipsiversive in 2. Seizures associated with epileptic nystagmus were mostly focal (25/29, 86.2%) with or without loss of awareness. Ictal discharges originated from the occipital (n = 16), parietal (n = 9), temporo-occipital (n = 6), frontal (n = 4), and temporal (n = 3) areas, and two patients had multiple epileptic foci. Seizures were usually symptomatic (24/37, 64.9%). The presence of preceding gaze deviation and midline crossing of the nystagmus did not correlate with the ictal onset zone or alertness of the patients. Recording of epileptic nystagmus was available only in 6 patients, and the epileptic nystagmus could be localized to the saccadic areas in two and to the smooth pursuit areas in another two. Two patients showed the features of epileptic nystagmus from both areas. Conclusion: Even though the localizing value of epileptic nystagmus seems limited in previous reports, the fast phase of epileptic nystagmus was almost always directed away from the epileptic focus that mostly arose from the posterior part of the cerebral hemisphere.http://www.sciencedirect.com/science/article/pii/S2213323214000395SeizureNystagmusEpileptic nystagmusIctal nystagmus |
| spellingShingle | Sun-Uk Lee Hong-Il Suh Jun Young Choi Kyun Huh Hyo-Jung Kim Ji-Soo Kim Epileptic nystagmus: A case report and systematic review Epilepsy and Behavior Case Reports Seizure Nystagmus Epileptic nystagmus Ictal nystagmus |
| title | Epileptic nystagmus: A case report and systematic review |
| title_full | Epileptic nystagmus: A case report and systematic review |
| title_fullStr | Epileptic nystagmus: A case report and systematic review |
| title_full_unstemmed | Epileptic nystagmus: A case report and systematic review |
| title_short | Epileptic nystagmus: A case report and systematic review |
| title_sort | epileptic nystagmus a case report and systematic review |
| topic | Seizure Nystagmus Epileptic nystagmus Ictal nystagmus |
| url | http://www.sciencedirect.com/science/article/pii/S2213323214000395 |
| work_keys_str_mv | AT sunuklee epilepticnystagmusacasereportandsystematicreview AT hongilsuh epilepticnystagmusacasereportandsystematicreview AT junyoungchoi epilepticnystagmusacasereportandsystematicreview AT kyunhuh epilepticnystagmusacasereportandsystematicreview AT hyojungkim epilepticnystagmusacasereportandsystematicreview AT jisookim epilepticnystagmusacasereportandsystematicreview |