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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">neurojour</journal-id><journal-title-group><journal-title xml:lang="ru">Неврологический журнал имени Л.О. Бадаляна</journal-title><trans-title-group xml:lang="en"><trans-title>L.O. Badalyan Neurological Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2686-8997</issn><issn pub-type="epub">2712-794X</issn><publisher><publisher-name>ФГАУ «НМИЦ здоровья детей» Минздрава России</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.46563/2686-8997-2023-4-4-193-199</article-id><article-id custom-type="edn" pub-id-type="custom">bawhuc</article-id><article-id custom-type="elpub" pub-id-type="custom">neurojour-112</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Нормативные показатели стимуляционной электромиографии у детей раннего возраста</article-title><trans-title-group xml:lang="en"><trans-title>Normative parameters of motor nerve conduction studies in infants</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7893-1863</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фисенко</surname><given-names>Дарья Андреевна</given-names></name><name name-style="western" xml:lang="en"><surname>Fisenko</surname><given-names>Daria A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аспирант, врач-невролог Центра детской психоневрологии ФГАУ «НМИЦ здоровья детей», 119991, Москва</p><p>e-mail: fisenko.daria@mail.ru</p></bio><email xlink:type="simple">fisenko.daria@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7269-9100</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куренков</surname><given-names>Алексей Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurenkov</surname><given-names>Alexey L.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9562-3774</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузенкова</surname><given-names>Людмила М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzenkova</surname><given-names>Lyudmila M.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8750-9285</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черников</surname><given-names>Владислав В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernikov</surname><given-names>Vladislav V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8381-8793</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Увакина</surname><given-names>Евгения В.</given-names></name><name name-style="western" xml:lang="en"><surname>Uvakina</surname><given-names>Eugeniya V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8506-2064</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бурсагова</surname><given-names>Бэлла И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bursagova</surname><given-names>Bella I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9697-500X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попович</surname><given-names>София Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Popovich</surname><given-names>Sophia G.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАУ «Национальный медицинский исследовательский центр здоровья детей» Минздрава России</institution></aff><aff xml:lang="en"><institution>National Medical Research Center for Children’s Health</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАУ «Национальный медицинский исследовательский центр здоровья детей» Минздрава России; Клинический институт детского здоровья имени Н.Ф. Филатова ФГАОУ ВО «Первый Московский государственный медицинский университет им. И.М. Сеченова» Минздрава России (Сеченовский Университет)</institution></aff><aff xml:lang="en"><institution>National Medical Research Center for Children’s Health; N.F. Filatov Clinical Institute of Children’s Health, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of Russia (Sechenov University)</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>11</day><month>01</month><year>2024</year></pub-date><volume>4</volume><issue>4</issue><fpage>193</fpage><lpage>199</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Фисенко Д.А., Куренков А.Л., Кузенкова Л.М., Черников В.В., Увакина Е.В., Бурсагова Б.И., Попович С.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Фисенко Д.А., Куренков А.Л., Кузенкова Л.М., Черников В.В., Увакина Е.В., Бурсагова Б.И., Попович С.Г.</copyright-holder><copyright-holder xml:lang="en">Fisenko D.A., Kurenkov A.L., Kuzenkova L.M., Chernikov V.V., Uvakina E.V., Bursagova B.I., Popovich S.G.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.neuro-journal.ru/jour/article/view/112">https://www.neuro-journal.ru/jour/article/view/112</self-uri><abstract><sec><title>Введение</title><p>Введение. Электромиография (ЭМГ) — современный метод инструментальной нейрофизиологической диагностики, включаю­щий две основные методики: стимуляционную ЭМГ и игольчатую ЭМГ. Показатели стимуляционной ЭМГ (электронейромиографии — ЭНМГ) применялись в ряде клинических исследований для оценки эффективности лечения у детей со спинальной мышечной атрофией (СМА) на фоне патогенетической терапии (нусинерсен). В России отсутствуют верифицированные нормативные показатели ЭНМГ у детей раннего возраста. В 2023 г. в нашей стране стартовал неонатальный скрининг на выявление пациентов с СМА, и сегодня всё шире применяется генная терапия данного заболевания, поэтому совершенствование методов инструментальной оценки динамики состояния на фоне лечения, в том числе с помощью ЭНМГ, актуально.</p><p>Цель исследования — определить нормативные параметры ЭНМГ у детей в возрасте 1–24 мес без неврологической патологии.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование были включены 64 здоровых ребёнка: 21 — в возрасте 1–6 мес, 22 — 7–12 мес, 21 — 13–24 мес. ЭНМГ проводили с помощью 2-канального электронейромиографа «Нейро-МВП-Микро» при электрической стимуляции локтевого нерва и регистрации М-ответа с мышцы, отводящей 5-й палец кисти. Это позволило определить основные параметры негативного пика М-ответа: латентность, амплитуду и площадь, а также рассчитать скорость распространения возбуждения (СРВ) по дистальной части локтевого нерва. Полученные данные для каждого параметра подчинялись нормальному распределению и были представлены в виде среднего и стандартного отклонения (M ± SD), минимального и максимального значения (min–max).</p></sec><sec><title>Результаты</title><p>Результаты. В возрасте 1–6 мес амплитуда М-ответа составила 5,0 ± 1,3 (3,0–8,0) мВ, площадь М-ответа — 9,1 ± 2,1 (5,5–12,9) мс×мВ, латентность — 2,2 ± 0,2 (1,6–2,5) мс, СРВ — 37,5 ± 5,4 (27,5–48,9) м/с. В возрастном диапазоне 7–12 мес амплитуда М-ответа составила 6,2 ± 1,3 (3,8–9,3) мВ, площадь М-ответа — 11,7 ± 3,0 (6,5–18,6) мс×мВ, латентность — 2,0 ± 0,2 (1,4–2,4) мс, СРВ — 48,4 ± 4,1 (42,1–55,2) м/с. В возрастном диапазоне 13–24 мес амплитуда М-ответа составила 6,4 ± 0,6 (5,0–7,3) мВ, площадь М-ответа — 13,3 ± 2,8 (9,8–18,2) мс×мВ; латентность — 2,2 ± 0,2 (1,8–2,5) мс, СРВ — 52,6 ± 3,8 (41,8–57,3) м/с.</p></sec><sec><title>Заключение</title><p>Заключение. Впервые получены нормативные параметры стимуляционной ЭНМГ у детей без неврологической патологии в возрасте 1–24 мес, что позволит объективизировать нейрофизиологические показатели при нервно-мышечных заболеваниях у детей раннего возраста.</p></sec><sec><title>Участие авторов</title><p>Участие авторов:Фисенко Д.А. — концепция и дизайн статьи, написание текста, редактирование;Куренков А.Л. — концепция и дизайн статьи, написание текста, редактирование;Кузенкова Л.М. — концепция и дизайн статьи, редактирование;Черников В.В. — статистическая обработка данных;Увакина Е.В. — концепция и дизайн статьи, редактирование;Бурсагова Б.И. — концепция и дизайн статьи, редактирование;Попович С.Г. — концепция и дизайн статьи, редактирование.Все соавторы — утверждение окончательного варианта статьи, ответственность за целостность всех частей статьи.</p></sec><sec><title>Поступила 23</title><p>Поступила 23.10.2023Принята к печати 30.11.2023Опубликована 28.12.2023</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Electromyography (EMG) is a modern method of instrumental neurophysiological diagnostics, which includes two main techniques as nerve conduction studies and needle EMG. Parameters of motor nerve conduction studies have been used in a number of clinical studies to evaluate the effectiveness of treatment in children with spinal muscular atrophy (SMA) during the use of pathogenetic therapy (nusinersen). Now, in our country there are no verified normative parameters of motor nerve conduction studies in infants. It is also worth saying that neonatal screening for identifying SMA patients started in 2023 in our country, and currently gene therapy for this disease is increasingly used, so improving methods for instrumental assessment of the dynamics of the condition during treatment, including using EMG, is relevant.</p></sec><sec><title>Objective</title><p>Objective: to determine the normative parameters of motor nerve conduction studies in 1–6 months, 7–12 months, and 13–24 months infants without neurological pathology.</p></sec><sec><title>Materials and methods</title><p>Materials and methods: The motor nerve conduction studies were carried out using a 2-channel electromyograph Neuro-MVP-Micro (Russia) with electrical stimulation of the ulnar nerve and registration of the compound muscle action potential (CMAP) from the abductor digiti minimi muscle. This made it possible to determine the main parameters of the negative peak of the CMAP — distal latency, amplitude and area, and calculate the motor nerve conduction velocity (MNCV) along the distal part of the ulnar nerve. The obtained data for each parameter were subject to normal distribution and presented in the form of mean and standard deviation (M±SD), minimum and maximum values (min – max).</p></sec><sec><title>Results</title><p>Results: In the age range of 1–6 months, the amplitude of the CMAP (mV) was 5.0±1.0 (3.0–8.0); CMAP area (ms∙mV) — 9.1 ± 2.1 (5.5–12.9); distal latency (ms) — 2.2 ± 0.2 (1.6–2.5), MNCV (m/s) — 37.5 ± 5.4 (27.5–48.9). In the age range of 7–12 months, the amplitude of the CMAP (mV) was 6.2 ± 1.3 (3.8-9.3); CMAP area (ms∙mV) — 11.7 ± 3.0 (6.5–18.6); distal latency (ms) — 2.0 ± 0.2 (1.4–2.4), MNCV (m/s) – 48.4 ± 4.1 (42.1–55.2). In the age range of 13-24 months, the amplitude of the CMAP (mV) was 6.4 ± 0.6 (5.0-7.3); CMAP area (ms∙mV) — 13.3 ± 2.8 (9.8–18.2); distal latency (ms) — 2.2 ± 0.2 (1.8–2.5), MNCV (m/s) — 52.6 ± 3.8 (41.8–57.3).</p></sec><sec><title>Conclusion</title><p>Conclusion. For the first time, normative parameters of motor nerve conduction studies were obtained in 1–6, 7–12, and 13–24 months infants without neurological pathology. This will make it possible to objectify neurophysiological parameters in neuromuscular diseases in infants.</p></sec><sec><title>For correspondence</title><p>For correspondence: Daria A. Fisenko, MD, postgraduate student, neurologist of the Center of child psychoneurology, National Medical Research Center of Children’s Health, Moscow, 119991, Russian Federation. E-mail: fisenko.daria@mail.ru</p></sec><sec><title>Contribution</title><p>Contribution: Fisenko D.A. — concept and design of the review, writing the text, editing;Kurenkov A.L. — concept and design of the review, writing the text, editing;Kuzenkova L.M. — concept and design of the review, editing;Chernikov V.V. — statistical data processing;Uvakina E.V. — concept and design of the review, editing;Bursagova B.I. — concept and design of the review, editing;Popovich S.G. — concept and design of the review, editing.All co-authors are responsible for the  integrity of all parts of the manuscript and approval of its final version.</p></sec><sec><title>Acknowledgements</title><p>Acknowledgements. The study had no sponsorship.</p></sec><sec><title>Conflict of interest</title><p>Conflict of interest. The authors declare no conflict of interest.</p></sec><sec><title>Received</title><p>Received: October 23, 2023</p></sec><sec><title>Accepted</title><p>Accepted:  November 30, 2023</p></sec><sec><title>Published</title><p>Published: December 28, 2023</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>стимуляционная электромиография</kwd><kwd>нормативные параметры</kwd><kwd>М-ответ</kwd><kwd>скорость распространения возбуждения</kwd><kwd>спинальная мышечная атрофия</kwd><kwd>генная терапия</kwd><kwd>нусинерсен</kwd><kwd>онасемноген абепарвовек</kwd></kwd-group><kwd-group xml:lang="en"><kwd>motor nerve conduction studies</kwd><kwd>EMG</kwd><kwd>normative parameters</kwd><kwd>compound muscle action potentials</kwd><kwd>nerve conduction velocity</kwd><kwd>NCV</kwd><kwd>spinal muscular atrophy</kwd><kwd>SMA</kwd><kwd>gene therapy</kwd><kwd>nusinersen</kwd><kwd>onasemnogene abeparvovec</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Preston D.C., Shapiro B.E. 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