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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Child Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Child Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Русский журнал детской неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2073-8803</issn><issn publication-format="electronic">2412-9178</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">564</article-id><article-id pub-id-type="doi">10.17650/2073-8803-2026-21-2-80-96</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>REVIEWS AND LECTURES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОБЗОРЫ И ЛЕКЦИИ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Epilepsy in patients with Down syndrome (literature review and clinical cases)</article-title><trans-title-group xml:lang="ru"><trans-title>Эпилепсия у пациентов с синдромом Дауна (обзор литературы с описанием клинических случаев)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6125-0618</contrib-id><name-alternatives><name xml:lang="en"><surname>Bobylova</surname><given-names>Mariya Yu.</given-names></name><name xml:lang="ru"><surname>Бобылова</surname><given-names>Мария Юрьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>mariya_bobylova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0804-7076</contrib-id><name-alternatives><name xml:lang="en"><surname>Burd</surname><given-names>S. G.</given-names></name><name xml:lang="ru"><surname>Бурд</surname><given-names>С. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Department of Neurology, Neurosurgery and Medical Genetics, Institute of Neuroscience and Neurotechnology</p></bio><bio xml:lang="ru"><p>кафедра неврологии, нейрохирургии и медицинской генетики Института нейронаук и нейротехнологий </p></bio><email>mariya_bobylova@mail.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0652-1996</contrib-id><name-alternatives><name xml:lang="en"><surname>Tomenko</surname><given-names>T. R.</given-names></name><name xml:lang="ru"><surname>Томенко</surname><given-names>Т. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>mariya_bobylova@mail.ru</email><xref ref-type="aff" rid="aff4"/><xref ref-type="aff" rid="aff5"/><xref ref-type="aff" rid="aff6"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9218-2531</contrib-id><name-alternatives><name xml:lang="en"><surname>Rakhmanina</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Рахманина</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>mariya_bobylova@mail.ru</email><xref ref-type="aff" rid="aff7"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9286-7805</contrib-id><name-alternatives><name xml:lang="en"><surname>Gorchkhanova</surname><given-names>Z. K.</given-names></name><name xml:lang="ru"><surname>Горчханова</surname><given-names>З. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>mariya_bobylova@mail.ru</email><xref ref-type="aff" rid="aff8"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6482-3792</contrib-id><name-alternatives><name xml:lang="en"><surname>Yamin</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Ямин</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Yu.E. Veltishchev Research Clinical Institute of Pediatrics and Pediatric Surgery</p></bio><bio xml:lang="ru"><p>ОСП «Научно-исследовательский клинический институт педиатрии и детской хирургии им. акад. Ю.Е. Вельтищева» </p></bio><email>mariya_bobylova@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9510-4918</contrib-id><name-alternatives><name xml:lang="en"><surname>Markin</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Маркин</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>mariya_bobylova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Svt. Luka’s Institute of Child and Adult Neurology and Epilepsy</institution></aff><aff><institution xml:lang="ru">ООО «Институт детской и взрослой неврологии и эпилепсии им. Святителя Луки»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Federal Center of Brain and Neurotechnologies, Federal Biomedical Agency of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Федеральный центр мозга и нейротехнологий» Федерального медико-биологического агентства России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Ural State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Уральский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">European Medical Center “UGMK-Health”</institution></aff><aff><institution xml:lang="ru">ООО «Европейский медицинский центр «УГМК-Здоровье»</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Ural Federal University named after the First President of Russia B.N. Yeltsin</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Уральский федеральный университет имени первого Президента России Б.Н. Ельцина»</institution></aff></aff-alternatives><aff-alternatives id="aff7"><aff><institution xml:lang="en">Tyumen State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Тюменский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff8"><aff><institution xml:lang="en">LLC “Medical Center “Hippocrates 21st Century”</institution></aff><aff><institution xml:lang="ru">ООО «Медицинский центр «Гиппократ 21 век»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-08-03" publication-format="electronic"><day>03</day><month>08</month><year>2026</year></pub-date><volume>21</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>80</fpage><lpage>96</lpage><history><date date-type="received" iso-8601-date="2026-08-03"><day>03</day><month>08</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-08-03"><day>03</day><month>08</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, ABV-Press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, АБВ-пресс</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">ABV-Press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0/</ali:license_ref></license></permissions><self-uri xlink:href="https://rjdn.abvpress.ru/jour/article/view/564">https://rjdn.abvpress.ru/jour/article/view/564</self-uri><abstract xml:lang="en"><p>An overview of the literature and clinical cases of epilepsy in Down syndrome (DS) is presented. Epilepsy in DS has a bimodal distribution with two peaks: before 5 years of age and after 40 years. In childhood, the most common epileptic syndrome is infantile epileptic spasms syndrome. First-line treatment includes vigabatrin and corticosteroids.</p> <p>The second peak of epilepsy occurs after the age of 40 and is associated with the coexistence of epilepsy and Alzheimer’s disease, which is known as late-onset myoclonic epilepsy in DS, the seizure semiology of which is similar to that of juvenile myoclonic epilepsy.</p> <p>Clinical cases of patients with infantile epileptic spasms syndrome and DS successfully treated with vigabatrin are presented. Comorbidities in DS include a high prevalence of obstructive sleep apnea syndrome, increased carbonic anhydrase type 2 activity, and the presence of myoclonic seizures similar to those in juvenile myoclonic epilepsy. These features support the use of sultiame as a pathogenetically justified drug for the treatment of epilepsy in patients with AD.</p> <p>A clinical case of a patient with DS is presented, in whom sultiame demonstrated high efficacy and good tolerability, as well as a positive impact on development and behavior</p></abstract><trans-abstract xml:lang="ru"><p>Представлен обзор литературы с описанием клинических случаев эпилепсии при синдроме Дауна (СД). Эпилепсия при СД носит двухфазный характер с пиками дебюта в возрасте до 5 и после 40 лет. В детском возрасте самым частым эпилептическим синдромом является синдром инфантильных эпилептических спазмов. К препаратам первой линии относят вигабатрин и глюкокортикостероиды.</p> <p>Второй пик эпилепсии приходится на возраст старше 40 лет и ассоциирован с развитием болезни Альцгеймера; в данном случае речь идет о миоклонической эпилепсии с поздним началом при СД, семиология приступов которой сходна с таковой юношеской миоклонической эпилепсии.</p> <p>Приведены клинические случаи сочетания синдрома инфантильных эпилептических спазмов и СД, в которых вигабатрин показал высокую эффективность. Среди коморбидной патологии при СД отмечаются высокая распространенность синдрома обструктивного апноэ сна, повышенная активность карбоангидразы 2-го типа, а также наличие миоклонических приступов, сходных с юношеской миоклонической эпилепсией. Это позволяет рассматривать сультиам как патогенетически обоснованный препарат для лечения эпилепсии у пациентов с СД.</p> <p>Приведен клинический случай пациента с СД, у которого сультиам показал высокую эффективность и хорошую переносимость, а также оказал положительное влияние на развитие и поведение.</p></trans-abstract><kwd-group xml:lang="en"><kwd>epilepsy</kwd><kwd>Down syndrome</kwd><kwd>sultiame</kwd><kwd>Alzheimer’s disease</kwd><kwd>infantile epileptic spasms syndrome</kwd><kwd>vigabatrin</kwd><kwd>late-onset myoclonic epilepsy in Down syndrome</kwd><kwd>obstructive sleep apnea syndrome</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эпилепсия</kwd><kwd>синдром Дауна</kwd><kwd>сультиам</kwd><kwd>болезнь Альцгеймера</kwd><kwd>синдром инфантильных эпилептических спазмов</kwd><kwd>вигабатрин</kwd><kwd>миоклоническая эпилепсия с поздним началом при синдроме Дауна</kwd><kwd>синдром обструктивного апноэ сна</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Glukhova L.Yu., Markin A.V. New arguments for patients with apnea and epilepsy. Russkiy zhurnal detskoy nevrologii = Russian Journal of Child Neurology 2025;20(4):84–92. (In Russ.). DOI: 10.17650/2073-8803-2025-20-4-84-92</mixed-citation><mixed-citation xml:lang="ru">Глухова Л.Ю., Маркин А.В. Новые аргументы для пациентов с апноэ и эпилепсией. Русский журнал детской неврологии 2025;20(4):84–92. DOI: 10.17650/2073-8803-2025-20-4-84-92</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Demikova N.S., Podolnaya M.A., Lapina A.S. et al. Dynamics of the frequency of trisomy 21 (Down syndrome) in the regions of the Russian Federation for 2011–2017. Pediatriya = Pediatrics 2019;98(2):43–8. (In Russ.). DOI: 10.24110/0031-403X-2019-98-2-42-48</mixed-citation><mixed-citation xml:lang="ru">Демикова Н.С., Подольная М.А., Лапина А.С. и др. Динамика частоты трисомии 21 (синдрома Дауна) в регионах Российской Федерации за 2011–2017 гг. Педиатрия 2019;98(2):43–8. DOI: 10.24110/0031-403X-2019-98-2-42-48</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Koroleva N.Yu., Markin A.V. Apnea, epilepsy, and SUDEP are closely interrelated. Natsionalnyy zhurnal nevrologii = National Journal of Neurology 2025;1(27):18–25. (In Russ.). DOI: 10.61788/njn.v1i27.02</mixed-citation><mixed-citation xml:lang="ru">Королева Н.Ю., Маркин А.В. Апноэ, эпилепсия и SUDEP – тесная взаимосвязь. Национальный журнал неврологии 2025;1(27):18–25. DOI: 10.61788/njn.v1i27.02</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><citation-alternatives><mixed-citation xml:lang="en">Maslova N.N., Fetisova E.S. Features of the course of epilepsy in children with Down syndrome. Vestnik Smolenskoy gosudarstvennoy akademii = Bulletin of the Smolensk State Academy 2013;12(1):90–3. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Маслова Н.Н., Фетисова Е.С. Особенности течения эпилепсии у детей с СД. Вестник Смоленской государственной академии 2013;12(1):90–3.</mixed-citation></citation-alternatives></ref><ref id="B5"><label>5.</label><citation-alternatives><mixed-citation xml:lang="en">Mironov M.B., Mukhin K.Yu., Ivanova I.V. et al. Clinical, electroencephalographic, neuroimaging characteristics and the effectiveness of antiepileptic therapy for West syndrome in patients with Down syndrome (results of our own observations). Farmateka = Pharmateka 2015;(11):51–7. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Миронов М.Б., Мухин К.Ю., Иванова И.В. и др. Клинико-электроэнцефалографические, нейровизуализационные характеристики и эффективность антиэпилептической терапии синдрома Веста у пациентов с СД (результаты собственных наблюдений). Фарматека 2015;(11):51–7.</mixed-citation></citation-alternatives></ref><ref id="B6"><label>6.</label><mixed-citation>Altuna M., Giménez S., Fortea J. Epilepsy in Down syndrome: a highly prevalent comorbidity. J Clin Med 2021;10(13):2776. DOI: 10.3390/jcm10132776</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Altuna M., Sierra A., Carmona-Iragui M. et al. Management of epilepsy in Alzheimer’s disease in Down syndrome. Alzheimer’s Dement 2023;19:e059775. DOI: 10.1002/alz.059775</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Auerbach D.S., Biton Y., Polonsky B. et al. Risk of cardiac events in long QT syndrome patients when taking antiseizure medications. Transl Res 2018;191:81–92.e7. DOI: 10.1016/j.trsl.2017.10.002</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Baumer N., DePillis R., Pawlowski K. et al. Developmental milestones for children with Down syndrome. Pediatrics 2024;154(4):e2023065402. DOI: 10.1542/peds.2023-065402</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Ben-Zeev B., Watemberg N., Lerman P. et al. Sulthiame in childhood epilepsy. Pediatr Int 2004;46(5):521–4. DOI: 10.1111/j.1442-200x.2004.01954.x</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Bösebeck F. Epilepsy and other comorbidities in Down syndrome. Z Epileptol 2022;35:235–41. DOI: 10.1007/s10309-022-00506-8</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Bull M.J., Trotter T., Santoro S.L. et al. Health supervision for children and adolescents with Down syndrome. Pediatrics 2022;149(5):e2022057010. DOI: 10.1542/peds.2022-057010</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Campos M.S., Ayres L.R., Morelo M.R. et al. Efficacy and tolerability of antiepileptic drugs in patients with focal epilepsy: systematic review and network meta-analyses. Pharmacotherapy 2016;36(12):1255–71.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Centers for Disease Control and Prevention. Data and Statistics on Birth Defects. Available at: https://www.cdc.gov/birth-defects/data-research/facts-stats/index.html.</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Curry T.A., Cooper E., Brinton J. et al. Co-occurring conditions and sleep symptoms associated with obstructive sleep apnea in children with Down syndrome. Pediatr Pulmonol 2025;60(11):e71376. DOI: 10.1002/ppul.71376</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>D’Orsi G., Calò E., Di Claudio M.T. et al. Progressive myoclonus epilepsy in Down syndrome with Alzheimer’s disease: an 11-year longitudinal study and proposed diagnostic red flags. Epilepsia Open 2026. DOI: 10.1002/epi4.70277</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>De Simone R., Daquin G., Genton P. Senile myoclonic epilepsy in Down syndrome: a video and EEG presentation of two cases. Epileptic Disord 2006;8(3):223–7.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Eisermann M.M., DeLaRaillère A., Dellatolas G. et al. Infantile spasms in Down syndrome – effects of delayed anticonvulsive treatment. Epilepsy Res 2003;55(1–2):21–7. DOI: 10.1016/s0920-1211(03)00088-3</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>European Commission. European Platform on Rare Disease Registration. EUROCAT Data. Prevalence Charts and Tables. Available at: https://eu-rd-platform.jrc.ec.europa.eu/eurocat/eurocat-data/prevalence_en.</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Ferlazzo E., Adjien C.K., Guerrini R. et al. Lennox–Gastaut syndrome with late-onset and prominent reflex seizures in trisomy 21 patients. Epilepsia 2009;50(6):1587–95. DOI: 10.1111/j.1528-1167.2008.01944.x</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Genton P., Delgado-Escueta A., Serratosa J.M., Bureau M. Progressive myoclonus epilepsies. In: Epileptic Syndromes in Infancy, Childhood and Adolescence. 5th edn. Paris: John Libbey Eurotext, 2012. Pp. 575–606.</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Goldberg-Stern H., Strawsburg R.H., Patterson B. et al. Seizures frequency and characteristics in children with Down syndrome. Brain Dev 2001;23(6):375–8.</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Guerrini R., Gobbi G., Genton P. et al. Chromosomal abnormalities. In: Epilepsy: a comprehensive textbook. 3rd edn. Ed. by J.Jr. Engel, T.A. Pedley. Philadelphia–New York: Lippincott-Raven, 1997. Pp. 2533–2546.</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Harvey S., Allen N.M., King M.D. et al. Response to treatment and outcomes of infantile spasms in Down syndrome. Dev Med Child Neurol 2022;64(6):780–8. DOI: 10.1111/dmcn.15153</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Hoff E., Strassberger C., Zou D. et al. Modification of endotypic traits in OSA by the carbonic anhydrase inhibitor sulthiame. Chest 2024;165(3):704–15.</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Hook E.G. Epidemiology of Down syndrome. In: Down Syndrome. Advances in Biomedicine and the Behavioral Sciences. Ed. by S.M. Pueschel, J.E. Rynders. Cambridge: Ware Press, 1982. P. 11.</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Jayaratne Y.S.N., Elsharkawi I., Macklin E.A. et al. The facial morphology in Down syndrome: a 3D comparison of patients with and without obstructive sleep apnea. Am J Med Genet A 2017;173(11):3013–21. DOI: 10.1002/ajmg.a.38399</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Johannsen P., Christensen J.E., Mai J. The prevalence of dementia in Down syndrome. Dementia 1996;7(4):221–5. DOI: 10.1159/000106883</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>Kane R.E., Kotagel S., Bacon B.R., Vogler C.A. Valproate use associated with persistent hyperammonemia and mitochondrial injury in a child with Down’s syndrome. J Pediatr Gastroenterol Nutr 1992;14(2):223–7. DOI: 10.1097/00005176-199202000-00018</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>Karadeniz C., Ozdemir R., Demir F. et al. Increased P-wave and QT dispersions necessitate long-term follow-up evaluation of Down syndrome patients with congenitally normal hearts. Pediatr Cardiol 2014;35(8):1344–8. DOI: 10.1007/s00246-014-0934-2</mixed-citation></ref><ref id="B31"><label>31.</label><mixed-citation>Kemper T.L. Neuropathology of Down syndrome. In: Psychobiology of Down Syndrome. Ed. by L. Nadel. Cambridge: MIT Press, 1988. Pp. 269–289.</mixed-citation></ref><ref id="B32"><label>32.</label><mixed-citation>Lerman P., Nussbaum E. The use of sulthiame in myoclonic epilepsy of childhood and adolescence. Acta Neurol Scand Suppl 1975;60:7–12. DOI: 10.1111/j.1600-0404.1975.tb01382.x</mixed-citation></ref><ref id="B33"><label>33.</label><mixed-citation>Menéndez M. Down syndrome, Alzheimer’s disease and seizures. Brain Dev 2005;27(4):246–52. DOI: 10.1016/j.braindev.2004.07.008</mixed-citation></ref><ref id="B34"><label>34.</label><mixed-citation>Møller R.S., Kübart S., Hoeltzenbein M. et al. Truncation of the Down syndrome candidate gene DYRK1A in two unrelated patients with microcephaly. Am J Hum Genet 2008;82(5):1165–70. DOI: 10.1016/j.ajhg.2008.03.001</mixed-citation></ref><ref id="B35"><label>35.</label><mixed-citation>Montenegro M.A., Vincentiis S., Valente K.D. Epilepsy associated with chromosomal disorders. Epilepsy Behav 2025;167:110360. DOI: 10.1016/j.yebeh.2025.110360</mixed-citation></ref><ref id="B36"><label>36.</label><mixed-citation>Nabbout R., Meli I., Gerbaka B. et al. Infantile spasms in Down syndrome: good response to a short course of Vigabatrin. Epilepsia 2001;42:1580–3.</mixed-citation></ref><ref id="B37"><label>37.</label><mixed-citation>OMIM. Down Syndrome. Available at: https://www.omim.org/entry/190685#36.</mixed-citation></ref><ref id="B38"><label>38.</label><mixed-citation>Palminiello S., Kida E., Kaur K. et al. Increased levels of carbonic anhydrase II in the developing Down syndrome brain. Brain Res 2008;1190:193–205. DOI: 10.1016/j.brainres.2007.11.023</mixed-citation></ref><ref id="B39"><label>39.</label><mixed-citation>Papavassiliou P., Charalsawadi C., Rafferty K., Jackson-Cook C. Mosaicism for trisomy 21: a review. Am J Med Genet A 2015;167A(1):26–39. DOI: 10.1002/ajmg.a.36861</mixed-citation></ref><ref id="B40"><label>40.</label><mixed-citation>Pelleri M.C., Cicchini E., Locatelli C. et al. Systematic reanalysis of partial trisomy 21 cases with or without Down syndrome suggests a small region on 21q22.13 as critical to the phenotype. Hum Mol Genet 2016;25(12):2525–38. DOI: 10.1093/hmg/ddw116</mixed-citation></ref><ref id="B41"><label>41.</label><mixed-citation>Pollack M.A., Golden G.S., Schmidt R. et al. Infantile spasms in Down syndrome: a report of five cases and review of the literature. Ann. Neurol 1978;3:406–8.</mixed-citation></ref><ref id="B42"><label>42.</label><mixed-citation>Presson A.P., Partyka G., Jensen K.M. et al. Current estimate of Down syndrome population prevalence in the United States. J Pediatr 2013;163(4):1163–8.</mixed-citation></ref><ref id="B43"><label>43.</label><mixed-citation>Pueschel S.M., Louris S., McKnight P. Seizures disorders in Down syndrome. Arch Neurol 1991;48(3):318–20.</mixed-citation></ref><ref id="B44"><label>44.</label><mixed-citation>Puri B.K., Ho K.W., Singh I. Age of seizure onset in adults with Down’s syndrome. Int J Clin Pract.2001;55(7):442–4.</mixed-citation></ref><ref id="B45"><label>45.</label><mixed-citation>Senthilvel E., Jawad K., Gunaratnam B. et al. Prevalence, associated risk factors, and respiratory event distribution of obstructive sleep apnea in children with Down syndrome. Sleep Breath 2024;28(1):251–60. DOI: 10.1007/s11325-023-02900-6</mixed-citation></ref><ref id="B46"><label>46.</label><mixed-citation>Shlobin N.A., Li J., Sander J.W. et al. Cardiac conduction delay for sodium channel antagonist antiseizure medications: an analysis of the Canadian longitudinal study on aging. Neurology 2025;104(4):e210302. DOI: 10.1212/WNL.0000000000210302</mixed-citation></ref><ref id="B47"><label>47.</label><mixed-citation>Silva M.L., Cieuta C., Guerrini R. et al. Early clinical and EEG features of infantile spasms in Down syndrome. Epilepsia 1996;37: 977–92.</mixed-citation></ref><ref id="B48"><label>48.</label><mixed-citation>Siniscalchi A., Gallelli L., Loizzo S. et al. Sodium valproate induced tremor in a patient with epilepsy and Down’s syndrome. Curr Drug Saf 2013;8(1):69–71. DOI: 10.2174/1574886311308010010</mixed-citation></ref><ref id="B49"><label>49.</label><mixed-citation>Siniscalchi A., Scaglione F., Sanzaro E. et al. Effects of phenobarbital and levetiracetam on PR and QTc intervals in patients with post-stroke seizure. Clin Drug Investig 2014;34(12):879–86. DOI: 10.1007/s40261-014-0243-9</mixed-citation></ref><ref id="B50"><label>50.</label><mixed-citation>Smigielska-Kuzia J., Sobaniec W., Kuak W., Bockowski L. Clinical and EEG features of epilepsy in children and adolescents in Down syndrome. J Child Neurol 2009;24 (4):416–20.</mixed-citation></ref><ref id="B51"><label>51.</label><mixed-citation>Souza L.P., Bermudez B.B., Bufara D.C., Crippa A.C.S. A retrospective cohort study of combined therapy in West syndrome associated with trisomy 21. Child Neurol Open 2022;9:2329048X221132639. DOI: 10.1177/2329048X221132639</mixed-citation></ref><ref id="B52"><label>52.</label><mixed-citation>Stafstrom C.E., Konkol R.J. Infantile spasms in children with Down syndrome. Dev Med Child Neurol 1994;36:576–85.</mixed-citation></ref><ref id="B53"><label>53.</label><mixed-citation>Tatsuno J., Ashida H., Takao A. Objective evaluation of differences in patterns of EEG topographical maps by Mahalanobis distance. Electroencephal Clin Neurophysiol 1988;69 (3):287–90. DOI: 10.1016/0013-4694(88)90137-X</mixed-citation></ref><ref id="B54"><label>54.</label><mixed-citation>Tolbert D., Reid S., Harris S., Bekersky I. Vigabatrin lacks proarrhythmic potential: results from a thorough QT/QTc study in healthy volunteers. Clin Ther 2017;39(8):1639–48. DOI: 10.1016/j.clinthera.2017.06.006</mixed-citation></ref><ref id="B55"><label>55.</label><mixed-citation>Ulate-Campos A., Nascimento A., Ortez C. Down syndrome and epilepsy. Int Med Rev Down Syndr 2014;18:3–8. DOI: 10.1016/S2171-9748(14)70044-3</mixed-citation></ref><ref id="B56"><label>56.</label><mixed-citation>Verrotti A., Cusmai R., Nicita F. et al. Electroclinical features and long-term outcome of cryptogenic epilepsy in children with Down syndrome. J Pediatr 2013;163(6):1754.</mixed-citation></ref><ref id="B57"><label>57.</label><mixed-citation>World Health Organization. European Health Information Gateway. Births with Down’s Syndrome Per 100,000 Live Births. Available at: https://gateway.euro.who.int/en/indicators/hfa_603-7120-births-with-downs-syndrome-per-100-000-live-births/.</mixed-citation></ref><ref id="B58"><label>58.</label><mixed-citation>Zalzal H.G., Lawlor C.M. Down syndrome for the otolaryngologist: a review. JAMA Otolaryngol Head Neck Surg 2023;149(4):360–7. DOI: 10.1001/jamaoto.2023.0001</mixed-citation></ref></ref-list></back></article>
