Journal articles: 'Occipital lobe epilepsy'

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Destina Yalçin, A., Asuman Kaymaz, and Hulki Forta. "Reflex occipital lobe epilepsy." Seizure 9, no. 6 (September 2000): 436–41. http://dx.doi.org/10.1053/seiz.2000.0424.

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Niedermeyer, E., Silvana Riggio, and Margarida Santiago. "Benign occipital lobe epilepsy." Journal of Epilepsy 1, no. 1 (January 1988): 3–11. http://dx.doi.org/10.1016/s0896-6974(88)80027-6.

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Kuzniecky, Ruben. "Symptomatic Occipital Lobe Epilepsy." Epilepsia 39, s4 (April 1998): S24—S31. http://dx.doi.org/10.1111/j.1528-1157.1998.tb05122.x.

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Lutskiy, M. A., M. V. Uvarova, V. P. Savinykh, and V. A. Bykova. "DIAGNOSIS OF OCCIPITAL LOBE EPILEPSY." Epilepsia and paroxyzmal conditions 9, no. 3 (January 1, 2017): 18–21. http://dx.doi.org/10.17749/2077-8333.2017.9.3.018-021.

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Guerrini, Renzo, Charlotte Dravet, Pierre Genton, Michelle Bureau, Paolo Bonanni, Anna Rita Ferrari, and Joseph Roger. "Idiopathic Photosensitive Occipital Lobe Epilepsy." Epilepsia 36, no. 9 (September 1995): 883–91. http://dx.doi.org/10.1111/j.1528-1157.1995.tb01631.x.

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Binder, Devin K., Marec Von Lehe, Thomas Kral, Christian G. Bien, Horst Urbach, Johannes Schramm, and Hans Clusmann. "Surgical treatment of occipital lobe epilepsy." Journal of Neurosurgery 109, no. 1 (July 2008): 57–69. http://dx.doi.org/10.3171/jns/2008/109/7/0057.

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Object Occipital lobe epilepsy (OLE) accounts for a small percentage of extratemporal epilepsies and only few and mostly small patient series have been reported. Preoperative findings, surgical strategies, histopathological bases, and postoperative outcomes for OLE remain to be elucidated. Methods A group of 54 patients with occipital lobe involvement were identified from a prospective epilepsy surgery database established in 1989. Medical charts, surgical reports, MR imaging, and histopathology data were reviewed, and patients with additional temporal and/or parietal involvement were categorized separately. Seizure outcome was classified according to the Engel classification scheme (Classes I–IV). Two patients were excluded due to incomplete data sets. Fifty-two patients with intractable epilepsy involving predominantly the occipital lobe were included in the study, comprising 17.8% of 292 patients undergoing operations for extratemporal epilepsies. Results In nearly all cases (50 [96.2%] of 52), a structural lesion was visible on preoperative MR imaging. Of these cases, 29 (55.8%) had “pure” OLE with no temporal or parietal lobe involvement. Most patients (83%) had complex partial seizures, and 60% also had generalized seizures. All patients underwent occipital lesionectomies or topectomies; 9 patients (17.3%) underwent additional multiple subpial transections. Histopathology results revealed 9 cortical dysplasias (17.3%), 9 gangliogliomas (17.3%), 6 other tumors (11.5%), 13 vascular malformations (25%), and 15 glial scars (28.8%). Visual field deficits were present in 36.4% of patients preoperatively, and 42.4% had new or aggravated visual field deficits after surgery. After a mean follow-up of 80 months, 36 patients were seizure free (69.2% Engel Class I), 4 rarely had seizures (7.7% Engel Class II), 8 improved more than 75% (15.4% Engel Class III), and 4 had no significant improvement (7.7% Engel Class IV). Multifactorial logistic regression analysis revealed that early age at epilepsy manifestation (p = 0.031) and shorter epilepsy duration (p = 0.004) were predictive of better seizure control. All other clinical and surgical factors were not significant in predicting outcome. Conclusions Occipital lobe epilepsy is an infrequent but significant cause of extratemporal epilepsy. Satisfactory results (Engel Class I or II) were obtained in 77% of patients in our series. Postoperative visual field deficits occurred in a significant proportion of patients. In the modern MR imaging era, lesions should be investigated in patients with OLE and lesionectomies should be performed early for a better outcome.

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Santangelo, Gabriella, Luigi Trojano, Carmine Vitale, Ilaria Improta, Irma Alineri, Roberta Meo, and Leonilda Bilo. "Cognitive dysfunctions in occipital lobe epilepsy compared to temporal lobe epilepsy." Journal of Neuropsychology 11, no. 2 (September 22, 2015): 277–90. http://dx.doi.org/10.1111/jnp.12085.

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Skrijelj, Fadil, and Mersudin Mulic. "Occipital lobe epilepsy or migraine headache." SANAMED 11, no. 3 (2016): 225–28. http://dx.doi.org/10.5937/sanamed1603225s.

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Kim, Minkyeong, Song-hwa Chae, Sua Jo, Kyung-Ha Noh, Jae Hwan Choi, and Jae Wook Cho. "Occipital Lobe Epilepsy with Hemicrania Epileptica." Journal of the Korean Neurological Association 34, no. 4 (November 1, 2016): 388–90. http://dx.doi.org/10.17340/jkna.2016.4.20.

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Gil–Nagel, A., I. García Morales, A. Jiménez Huete, J. Alvarez Linera, A. Barrio, C. Ruiz Ocaña, and D. G. Muñoz. "Occipital lobe epilepsy secondary to ulegyria." Journal of Neurology 252, no. 10 (April 5, 2005): 1178–85. http://dx.doi.org/10.1007/s00415-005-0829-5.

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Skrijelj, Fadil Esref, and Mersudin Mulic. "OCCIPITAL LOBE EPILEPSY OR MIGRAINE HEADACHE." SANAMED 11, no. 3 (December 18, 2016): 225. http://dx.doi.org/10.24125/sanamed.v11i3.141.

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Doud, Alexander, Anthony Julius, and Christopher B. Ransom. "Visual Phenomena in Occipital Lobe Epilepsy." JAMA Neurology 75, no. 9 (September 1, 2018): 1146. http://dx.doi.org/10.1001/jamaneurol.2018.2144.

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Yilmaz, Kutluhan, and Elif Yüksel Karatoprak. "Epilepsy classification and additional definitions in occipital lobe epilepsy." Epileptic Disorders 17, no. 3 (September 2015): 299–307. http://dx.doi.org/10.1684/epd.2015.0767.

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Caraballo, Roberto H., Diego Sakr, Marcela Mozzi, Alberto Guerrero, Javier N. Adi, Ricardo O. Cersósimo, and Natalio Fejerman. "Symptomatic occipital lobe epilepsy following neonatal hypoglycemia." Pediatric Neurology 31, no. 1 (July 2004): 24–29. http://dx.doi.org/10.1016/j.pediatrneurol.2003.12.008.

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Cienki, John J. "Occipital lobe epilepsy presenting with visual hallucinations." American Journal of Emergency Medicine 31, no. 3 (March 2013): 624. http://dx.doi.org/10.1016/j.ajem.2012.11.031.

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Sirsi, Deepa, Srishti Nangia, Padmaja Kandula, Gail E. Solomon, and Murray Engel. "Atypical presentations of idiopathic occipital lobe epilepsy." Clinical Neurophysiology 118, no. 7 (July 2007): e188. http://dx.doi.org/10.1016/j.clinph.2007.03.035.

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Sveinbjornsdottir, S., and J. S. Duncan. "Parietal and Occipital Lobe Epilepsy: A Review." Epilepsia 34, no. 3 (May 1993): 493–521. http://dx.doi.org/10.1111/j.1528-1157.1993.tb02590.x.

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Gulgonen, Sibel, Veysi Demirbilek, Baris Korkmaz, Aysm Dervent, and Brenda D. Townes. "Neuropsychological Functions in Idiopathic Occipital Lobe Epilepsy." Epilepsia 41, no. 4 (April 2000): 405–11. http://dx.doi.org/10.1111/j.1528-1157.2000.tb00181.x.

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Plazzi, Giuseppe, Paolo Tinuper, Angelina Cerullo, Federica Provini, and Elio Lugaresi. "Occipital Lobe Epilepsy: A Chronic Condition Related to Transient Occipital Lobe Involvement in Eclampsia." Epilepsia 35, no. 3 (May 1994): 644–47. http://dx.doi.org/10.1111/j.1528-1157.1994.tb02485.x.

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Tandon, Nitin, Andreas V. Alexopoulos, Ann Warbel, Imad M. Najm, and William E. Bingaman. "Occipital epilepsy: spatial categorization and surgical management." Journal of Neurosurgery 110, no. 2 (February 2009): 306–18. http://dx.doi.org/10.3171/2008.4.17490.

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Object Occipital resections for epilepsy are rare. Reasons for this are the relative infrequency of occipital epilepsy, difficulty in localizing epilepsy originating in the occipital lobe, imprecisely defined seizure outcome in patients treated with focal occipital resections in the MR imaging era, and concerns about producing visual deficits. The impact of lesion location on vision and seizure biology, the management decision-making process, and the outcomes following resection need elaboration. Methods The authors studied 21 consecutive patients who underwent focal occipital resections for epilepsy at Cleveland Clinic Epilepsy Center over a 13-year period during which MR imaging was used. Demographics, imaging, and data relating to the epilepsy and its surgical management were collected. The collateral sulcus, the border between the medial surface and the lateral convexity, and the inferior temporal sulcus were used to subdivide the occipital lobe into medial, lateral, and basal zones. Lesions that did not involve most or all of the occipital lobe (sublobar) were spatially categorized into these zones. Visual function, semiology, and scalp electroencephalography were evaluated in relation to these spatial categories. Preresection and postresection visual function and seizure frequency were evaluated and compared. Lastly, an exhaustive review and discussion of the published literature on occipital resections for epilepsy was carried out. Results Five lesions were lobar and 16 were sublobar. Patients with medial or lobar lesions had a much greater likelihood of preoperative visual field defects. Those with basal or lateral lesions had a greater likelihood of having a visual aura preceding some or all of their seizures and a trend (not significant) toward having a concordant lateralized onset by scalp electroencephalography. Invasive recordings were used in 8 cases. All patients had lesions (malformations of cortical development, tumors, or gliosis) that were completely resected, as evaluated on postoperative MR imaging. At last follow-up, 17 patients (81%) were seizure free or had only occasional auras (Wieser Class 1 or 2). The remaining 4 patients (19%) had a worthwhile improvement in seizure control (Class 3 or 4). Of the patients for whom both pre- and postoperative visual testing data were available, 50% suffered no new visual deficits, and 17% each developed a new quadrantanopia or a hemianopia. Conclusions Lesional occipital lobe epilepsy can be successfully managed with resection to obtain excellent seizure-free rates. Individually tailored resections (in lateral occipital lesions, for example) may help preserve intact vision in a subset of cases (38% in this series). Invasive recordings may further guide surgical decision-making as delineated by an algorithm generated by the authors. The authors' results suggest that the spatial location of the lesion correlates both with the semiology of the seizure and with the presence of visual deficit.

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Yamamoto, Takahiro, Tadashi Hamasaki, Hideo Nakamura, and Kazumichi Yamada. "Improvement of visual field defects after focal resection for occipital lobe epilepsy: case report." Journal of Neurosurgery 128, no. 3 (March 2018): 862–66. http://dx.doi.org/10.3171/2016.12.jns161820.

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Improvement of visual field defects after surgical treatment for occipital lobe epilepsy is rare. Here, the authors report on a 24-year-old man with a 15-year history of refractory epilepsy that developed after he had undergone an occipital craniotomy to remove a cerebellar astrocytoma at the age of 4. His seizures started with an elementary visual aura, followed by secondary generalized tonic-clonic convulsion. Perimetry revealed left-sided incomplete hemianopia, and MRI showed an old contusion in the right occipital lobe. After evaluation with ictal video-electroencephalography, electrocorticography, and mapping of the visual cortex with subdural electrodes, the patient underwent resection of the scarred tissue, including the epileptic focus at the occipital lobe. After surgery, he became seizure free and his visual field defect improved gradually. In addition, postoperative 123I-iomazenil (IMZ) SPECT showed partly normalized IMZ uptake in the visual cortex. This case is a practical example suggesting that neurological deficits attributable to the functional deficit zone can be remedied by successful focal resection.

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Kucukyuruk, Baris, Taner Tanriverdi, Buge Oz, Naz Yeni, and Emin Ozyurt. "Neurocysticercosis: A Rare Cause of Occipital Lobe Epilepsy." Sinir Sistemi Cerrahisi Dergisi 4, no. 2 (May 2, 2014): 82–84. http://dx.doi.org/10.5222/sscd.2014.082.

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Polat, Muzaffer, Sarenur Gokben, Ayse Tosun, Gul Serdaroglu, and Hasan Tekgul. "Neurocognitive evaluation in children with occipital lobe epilepsy." Seizure 21, no. 4 (May 2012): 241–44. http://dx.doi.org/10.1016/j.seizure.2011.12.015.

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Kim, Tae Hyoung, Tae Il Yang, Jae-Wook Cho, Na Yoen Jung, and Kwang Dong Choi. "PO10.4 Symptomatic Occipital Lobe Epilepsy with Atypical Kinetopsia." Clinical Neurophysiology 120 (April 2009): S74. http://dx.doi.org/10.1016/s1388-2457(09)60246-7.

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Brown-Vargas, Damaris, and John J. Cienki. "Occipital lobe epilepsy presenting as Charles Bonnet syndrome." American Journal of Emergency Medicine 30, no. 9 (November 2012): 2102.e5–2102.e6. http://dx.doi.org/10.1016/j.ajem.2012.03.008.

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Hout, B. M., W. Meij, G. H. Wieneke, A. C. Huffelen, and O. Nieuwenhuizen. "Seizure Semiology of Occipital Lobe Epilepsy in Children." Epilepsia 38, no. 11 (November 1997): 1188–91. http://dx.doi.org/10.1111/j.1528-1157.1997.tb01215.x.

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Sekhon, G., and D. Muthugovindan. "MELAS presenting as occipital lobe epilepsy: Not all occipital epilepsies are benign." European Journal of Paediatric Neurology 21 (June 2017): e97. http://dx.doi.org/10.1016/j.ejpn.2017.04.734.

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Wang, Shuang, Lingli Hu, Fang Ding, and Shan Wang. "MRI-Negative Occipital Lobe Epilepsy Presenting as Gelastic Seizures." Neurology India 69, no. 6 (2021): 1813. http://dx.doi.org/10.4103/0028-3886.333525.

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Traianou, Aikaterini, Panayiotis Patrikelis, Mary H. Kosmidis, Vasilios Κ. Kimiskidis, and Stylianos Gatzonis. "The neuropsychological profile of parietal and occipital lobe epilepsy." Epilepsy & Behavior 94 (May 2019): 137–43. http://dx.doi.org/10.1016/j.yebeh.2019.02.021.

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Oehl, Bernhard, Andreas Schulze-Bonhage, Michael Lanz, Armin Brandt, and Dirk-Matthias Altenmüller. "Occipital lobe epilepsy with fear as leading ictal symptom." Epilepsy & Behavior 23, no. 3 (March 2012): 379–83. http://dx.doi.org/10.1016/j.yebeh.2011.12.014.

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Jobst, Barbara C., Peter D. Williamson, Vijay M. Thadani, Karen L. Gilbert, Gregory L. Holmes, Richard P. Morse, Terrance M. Darcey, Ann-Christine Duhaime, Krysztof A. Bujarski, and David W. Roberts. "Intractable occipital lobe epilepsy: Clinical characteristics and surgical treatment." Epilepsia 51, no. 11 (October 26, 2010): 2334–37. http://dx.doi.org/10.1111/j.1528-1167.2010.02673.x.

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Aykut-Bingol, Canan, Richard A. Bronen, Jung H. Kim, Dennis D. Spencer, and Susan S. Spencer. "Surgical outcome in occipital lobe epilepsy: Implications for pathophysiology." Annals of Neurology 44, no. 1 (July 1998): 60–69. http://dx.doi.org/10.1002/ana.410440112.

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Ito, Masumi, Fumihiro Nakamura, Hiroshi Honma, Youji Takeda, Riko Kobayashi, Tamaki Miyamoto, and Tsukasa Koyama. "A comparison of post-ictal headache between patients with occipital lobe epilepsy and temporal lobe epilepsy." Seizure 8, no. 6 (September 1999): 343–46. http://dx.doi.org/10.1053/seiz.1999.0308.

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Taylor, I. "Juvenile myoclonic epilepsy and idiopathic photosensitive occipital lobe epilepsy: is there overlap?" Brain 127, no. 8 (June 16, 2004): 1878–86. http://dx.doi.org/10.1093/brain/awh211.

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Joswig, Holger, John P. Girvin, Warren T. Blume, Jorge G. Burneo, and David A. Steven. "Awake perimetry testing for occipital epilepsy surgery." Journal of Neurosurgery 129, no. 5 (November 2018): 1195–99. http://dx.doi.org/10.3171/2017.6.jns17846.

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In the literature, there are few reports that provide a detailed account on the technique of visual electrocortical stimulation in the setting of resective surgery for occipital epilepsy. In this technical note, the authors describe how a 26-year-old male with long-standing occipital epilepsy underwent resective surgery under awake conditions, using electrocortical stimulation of the occipital lobe, with the aid of a laser pointer and a perimetry chart on a stand within his visual field. The eloquent primary visual cortex was found to overlap with the seizure onset zone that was previously determined with subdural electrodes. A maximum functionally safe resection was performed, rendering the patient seizure free as of his last follow-up at 20 months, with no visual field impairment.

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Lyu, Yan-En, Xiao-Fei Xu, Shuang Dai, Min Feng, Shao-Ping Shen, Guo-Zhen Zhang, Hong-Yan Ju, Yao Wang, Xiao-Bo Dong, and Bin Xu. "Resection of bilateral occipital lobe lesions during a single operation as a treatment for bilateral occipital lobe epilepsy." World Journal of Clinical Cases 9, no. 34 (December 6, 2021): 10518–29. http://dx.doi.org/10.12998/wjcc.v9.i34.10518.

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Aznarez, Pablo Barbero, Marta Pastor Cabeza, Ana Sofia Alvarez Quintana, Monica Lara-Almunia, and Julio Albisua Sanchez. "Evolution of patients with surgically treated drug-resistant occipital lobe epilepsy." Surgical Neurology International 11 (August 1, 2020): 222. http://dx.doi.org/10.25259/sni_251_2020.

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Background: This study was to describe the evolution of patients who underwent surgical treatment of drug- resistant occipital lobe epilepsy (OLE) at our institution. Methods: We performed a retrospective analysis of data collected from electronic and paper clinical records of 20 patients who were diagnosed of OLE and underwent epilepsy surgery at our institution between 1998 and 2018. We also contacted patients by telephone and asked them to fill out a questionnaire about quality of life in epilepsy (QOLIE-10). Assembled data were analyzed using descriptive statistics. Results: The age at surgery ranged between 19 and 55 years. The period encompassing epilepsy onset and the date of surgery was variable. Semiology of seizures included visual symptoms in 75% of patients. In 90% of cases subdural grids, depth electrodes or a combination of both were used to plan the surgery. The most frequent neuroimaging and histopathological finding was cortical dysplasia (55%). The postoperative follow-up period was up to 15 years. The most common score on the Engel scale was I (70%). Visual deficits increased after surgery. Median score on QOLIE-10 questionnaire was 82.5 (interquartile range: 32.5). Conclusion: Surgical treatment of drug-resistant OLE offers hopeful results to those patients who have run out of pharmacological options and leads to postoperative deficits that are deemed expectable and occasionally acceptable.

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Kaido, Takanobu, Tohru Hoshida, Toshiaki Taoka, and Toshisuke Sakaki. "Retinotopy with coordinates of lateral occipital cortex in humans." Journal of Neurosurgery 101, no. 1 (July 2004): 114–18. http://dx.doi.org/10.3171/jns.2004.101.1.0114.

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Object. The lateral occipital cortex in humans is known as the “extrastriate visual cortex.” It is, however, an unexplored field of research, and the anatomical nomenclature for its surface has still not been standardized. This study was designed to investigate whether the lateral occipital cortex in humans has retinotopic representation. Methods. Four right-handed patients with a diagnosis of intractable epilepsy from space-occupying lesions in the occipital lobe or epilepsy originating in the occipital lobe received permanently implanted subdural electrodes. Electrical cortical stimulation was applied directly applied to the brain through metal electrodes by using a biphasic stimulator. The location of each electrode was measured on a lateral skull x-ray study. Each patient considered a whiteboard with vertical and horizontal median lines. The patient was asked to look at the midpoint on the whiteboard. If a visual hallucination or illusion occurred, the patient recorded its outline, shape, color, location, and motion on white paper one tenth the size of, and with vertical and horizontal median lines similar to those on, the whiteboard. Polar angles and eccentricities of the midpoints of the phosphenes from the coordinate origin were measured on the paper. On stimulation of the lateral occipital lobe, 44 phosphenes occurred. All phosphenes were circular or dotted, with a diameter of approximately 1 cm, except one that was like a curtain in the peripheral end of the upper and lower visual fields on stimulation of the parietooccipital region. All phosphenes appeared in the visual field contralateral to the cerebral hemisphere stimulated. On stimulation of the lateral occipital lobe, 22 phosphenes moved centrifugally or toward a horizontal line. From three-dimensional scatterplots and contour maps of the polar angles and eccentricities in relation to the x-ray coordinates of the electrodes, one can infer that the lateral occipital cortex in humans has retinotopic representation. Conclusions. The authors found that phosphenes induced by electrical cortical stimulation of the lateral occipital cortex represent retinotopy. From these results one can assert that visual field representation with retinotopic relation exists in the extrastriate visual cortex.

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Heo, Won, June Sic Kim, Chun Kee Chung, and Sang Kun Lee. "Relationship between cortical resection and visual function after occipital lobe epilepsy surgery." Journal of Neurosurgery 129, no. 2 (August 2018): 524–32. http://dx.doi.org/10.3171/2017.5.jns162963.

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OBJECTIVEIn this study, the authors investigated long-term clinical and visual outcomes of patients after occipital lobe epilepsy (OLE) surgery and analyzed the relationship between visual cortical resection and visual function after OLE surgery.METHODSA total of 42 consecutive patients who were diagnosed with OLE and underwent occipital lobe resection between June 1995 and November 2013 were included. Clinical, radiological, and histopathological data were reviewed retrospectively. Seizure outcomes were categorized according to the Engel classification. Visual function after surgery was assessed using the National Eye Institute Visual Functioning Questionnaire 25. The relationship between the resected area of the visual cortex and visual function was demonstrated by multivariate linear regression models.RESULTSAfter a mean follow-up period of 102.2 months, 27 (64.3%) patients were seizure free, and 6 (14.3%) patients had an Engel Class II outcome. Nineteen (57.6%) of 33 patients had a normal visual field or quadrantanopia after surgery (normal and quadrantanopia groups). Patients in the normal and quadrantanopia groups had better vision-related quality of life than those in the hemianopsia group. The resection of lateral occipital areas 1 and 2 of the occipital lobe was significantly associated with difficulties in general vision, peripheral vision, and vision-specific roles. In addition, the resection of intraparietal sulcus 3 or 4 was significantly associated with decreased social functioning.CONCLUSIONSThe authors found a favorable seizure control rate (Engel Class I or II) of 78.6%, and 57.6% of the subjects had good visual function (normal vision or quadrantanopia) after OLE surgery. Lateral occipital cortical resection had a significant effect on visual function despite preservation of the visual field.

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HERMANN, BRUCE, MICHAEL SEIDENBERG, BRIAN BELL, PAUL RUTECKI, RAJ D. SHETH, GARY WENDT, DANIEL O'LEARY, and VINCE MAGNOTTA. "Extratemporal quantitative MR volumetrics and neuropsychological status in temporal lobe epilepsy." Journal of the International Neuropsychological Society 9, no. 3 (February 25, 2003): 353–62. http://dx.doi.org/10.1017/s1355617703930013.

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Neuropsychological studies of temporal lobe epilepsy have focused heavily on the nature and extent of memory dysfunction and its relationship to the neuropathological status of the hippocampus and related mesial temporal lobe structures. In this study, we examined whole brain and lobar quantitative MRI volumes and comprehensive neuropsychological performance in 58 patients with temporal lobe epilepsy and 62 healthy controls in order to determine (1) the nature and degree of extratemporal structural abnormalities in localization-related temporal lobe epilepsy; (2) the nature and degree of cognitive abnormalities outside of anterograde memory function; and (3) the relationship of volumetric abnormalities to neuropsychological status. Temporal lobe epilepsy patients exhibited significant reduction in the volume of adjusted (age, gender, height) total cerebral tissue (−5.8%), more evident in white (−9.8%) compared to gray matter (−3.0%) tissue volumes. Significant volumetric reductions were evident across frontal, temporal and parietal but not occipital lobe regions. Subarachnoid but not total ventricular CSF was significantly increased in epilepsy patients. Neuropsychological abnormality was generalized in nature, consistent with the generalized nature of the morphometric abnormalities, and reductions in cerebral tissue volumes were directly associated with poorer cognitive performance. In summary, patients with temporal lobe epilepsy exhibited clinically significant structural and functional abnormalities that extended outside the epileptogenic temporal lobe. The degree to which these structural and cognitive abnormalities are due to factors that cause the epilepsy, as opposed to reflecting the consequences of chronic epilepsy (e.g., duration and severity of epilepsy), remain to be determined. (JINS, 2003, 9, 353–362.)

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Amorim, Bárbara Juarez, Elba Cristina Sá de Camargo Etchebehere, Edwaldo Eduardo Camargo, Pablo Augusto Rio, Leonardo Bonilha, Chris Rorden, Li Min Li, and Fernando Cendes. "Statistical voxel-wise analysis of ictal SPECT reveals pattern of abnormal perfusion in patients with temporal lobe epilepsy." Arquivos de Neuro-Psiquiatria 63, no. 4 (December 2005): 977–83. http://dx.doi.org/10.1590/s0004-282x2005000600014.

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OBJECTIVE: To investigate the pattern of perfusion abnormalities in ictal and interictal brain perfusion SPECT images (BSI) from patients with temporal lobe epilepsy (TLE). METHOD: It was acquired interictal and ictal BSI from 24 patients with refractory TLE. BSIs were analyzed by visual inspection and statistical parametric mapping (SPM2). Statistical analysis compared the patients group to a control group of 50 volunteers. The images from patients with left-TLE were left-right flipped. RESULTS: It was not observed significant perfusional differences in interictal scans with SPM. Ictal BSI in SPM analysis revealed hyperperfusion within ipsilateral temporal lobe (epileptogenic focus) and also contralateral parieto-occipital region, ipsilateral posterior cingulate gyrus, occipital lobes and ipsilateral basal ganglia. Ictal BSI also showed areas of hypoperfusion. CONCLUSION: In a group analysis of ictal BSI of patients with TLE, voxel-wise analysis detects a network of distant regions of perfusional alteration which may play active role in seizure genesis and propagation.

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González, Hernán F. J., Srijata Chakravorti, Sarah E. Goodale, Kanupriya Gupta, Daniel O. Claassen, Benoit Dawant, Victoria L. Morgan, and Dario J. Englot. "Thalamic arousal network disturbances in temporal lobe epilepsy and improvement after surgery." Journal of Neurology, Neurosurgery & Psychiatry 90, no. 10 (May 23, 2019): 1109–16. http://dx.doi.org/10.1136/jnnp-2019-320748.

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ObjectiveThe effects of temporal lobe epilepsy (TLE) on subcortical arousal structures remain incompletely understood. Here, we evaluate thalamic arousal network functional connectivity in TLE and examine changes after epilepsy surgery.MethodsWe examined 26 adult patients with TLE and 26 matched control participants and used resting-state functional MRI (fMRI) to measure functional connectivity between the thalamus (entire thalamus and 19 bilateral thalamic nuclei) and both neocortex and brainstem ascending reticular activating system (ARAS) nuclei. Postoperative imaging was completed for 19 patients >1 year after surgery and compared with preoperative baseline.ResultsBefore surgery, patients with TLE demonstrated abnormal thalamo-occipital functional connectivity, losing the normal negative fMRI correlation between the intralaminar central lateral (CL) nucleus and medial occipital lobe seen in controls (p < 0.001, paired t-test). Patients also had abnormal connectivity between ARAS and CL, lower ipsilateral intrathalamic connectivity, and smaller ipsilateral thalamic volume compared with controls (p < 0.05 for each, paired t-tests). Abnormal brainstem–thalamic connectivity was associated with impaired visuospatial attention (ρ = −0.50, p = 0.02, Spearman’s rho) while lower intrathalamic connectivity and volume were related to higher frequency of consciousness-sparing seizures (p < 0.02, Spearman’s rho). After epilepsy surgery, patients with improved seizures showed partial recovery of thalamo-occipital and brainstem–thalamic connectivity, with values more closely resembling controls (p < 0.01 for each, analysis of variance).ConclusionsOverall, patients with TLE demonstrate impaired connectivity in thalamic arousal networks that may be involved in visuospatial attention, but these disturbances may partially recover after successful epilepsy surgery. Thalamic arousal network dysfunction may contribute to morbidity in TLE.

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권지윤, 변정혜, 은백린, Kim, Gun-Ha, and 은소희. "Childhood Idiopathic Occipital Lobe Epilepsy: Clinical Characteristics and Prognostic Factors." Journal of the korean child neurology society 25, no. 3 (September 2017): 121–26. http://dx.doi.org/10.26815/jkcns.2017.25.3.121.

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Engelsen, B. A., C. Tzoulis, B. Karlsen, A. Lillebo, L. M. Laegreid, J. Aasly, M. Zeviani, and L. A. Bindoff. "POLG1 mutations cause a syndromic epilepsy with occipital lobe predilection." Brain 131, no. 3 (February 7, 2008): 818–28. http://dx.doi.org/10.1093/brain/awn007.

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Kohsaka, Masako, Noriko Fukuda, Tetsuo Sumi, Naofumi Kajii, Shinobu Kohsaka, and Toshio Yamauchi. "Time Series Analysis of Epileptiform Discharges in Occipital Lobe Epilepsy." Psychiatry and Clinical Neurosciences 41, no. 3 (September 1987): 558–59. http://dx.doi.org/10.1111/j.1440-1819.1987.tb01767.x.

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Hattori, Hideji, Osamu Matsuoka, Hiroshi Ishida, Saeri Hisatsune, and Tsunekazu Yamano. "Magnetic resonance imaging in occipital lobe epilepsy with frequent seizures." Pediatric Neurology 28, no. 3 (March 2003): 216–18. http://dx.doi.org/10.1016/s0887-8994(02)00615-x.

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Dundar, N. O., N. Karahan, J. Tlirnbull, and B. Minassian. "P18.1 A Lafora Disease Patient: Presented with Occipital Lobe Epilepsy." European Journal of Paediatric Neurology 15 (May 2011): S104—S105. http://dx.doi.org/10.1016/s1090-3798(11)70361-0.

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Tan, Colin S. H., Kelvin Z. Li, Louis W. Lim, and Ngo Wei Kiong. "Occipital lobe epilepsy presenting with visual hallucinations (Charles Bonnet syndrome)." American Journal of Emergency Medicine 31, no. 3 (March 2013): 624–25. http://dx.doi.org/10.1016/j.ajem.2012.11.032.

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Bidziński, J., T. Bacia, and E. Ruzikowski. "The results of the surgical treatment of occipital lobe epilepsy." Acta Neurochirurgica 114, no. 3-4 (September 1992): 128–30. http://dx.doi.org/10.1007/bf01400600.

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Kwon, Ji Yoon. "Clinical characters and prognostic factors in childhood occipital lobe epilepsy." European Journal of Paediatric Neurology 21 (June 2017): e101. http://dx.doi.org/10.1016/j.ejpn.2017.04.745.

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Journal articles on the topic 'Occipital lobe epilepsy'

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