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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">rosped</journal-id><journal-title-group><journal-title xml:lang="ru">Российский педиатрический журнал имени М.Я. Студеникина</journal-title><trans-title-group xml:lang="en"><trans-title>M.Ya. Studenikin Russian Pediatric Journal</trans-title></trans-title-group></journal-title-group><publisher><publisher-name>ФГАУ «НМИЦ здоровья детей» Минздрава России</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.46563/1560-9561-2022-25-1-39-45</article-id><article-id custom-type="edn" pub-id-type="custom">ekbxff</article-id><article-id custom-type="elpub" pub-id-type="custom">rosped-349</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>СОЦИАЛЬНАЯ ПЕДИАТРИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SOCIAL PEDIATRICS</subject></subj-group></article-categories><title-group><article-title>Синдром перекрёста гастроэзофагеальной рефлюксной болезни и диспепсии у школьников этнических популяций Сибири</article-title><trans-title-group xml:lang="en"><trans-title>Crossing syndrome of gastroesophageal reflux disease and of dispepsia in schoolchildren of ethnic populations of Siberia</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3842-9147</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поливанова</surname><given-names>Тамара Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Polivanova</surname><given-names>Tamara V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор мед. наук, гл. науч. сотр., НИИ медицинских проблем Севера.</p><p>e-mail: tamara-polivanova@yandex.ru</p></bio><bio xml:lang="en"><p>Dr. Sci. Med., Chief scientist, Scientific Research Institute for Medical Problems of the North, Krasnoyarsk, 660022, Russian Federation.</p><p>e-mail: tamara-polivanova@yandex.ru</p></bio><email xlink:type="simple">tamara-polivanova@yandex.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/0000-0002-5988-1688</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каспаров</surname><given-names>Эдуард Вильямович</given-names></name><name name-style="western" xml:lang="en"><surname>Kasparov</surname><given-names>Eduard V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор мед. наук, проф., директор, НИИ медицинских проблем Севера ФГБНУ «Федеральный исследовательский центр «Красноярский научный центр СО РАН».</p><p>e-mail: impn@impn.ru</p></bio><email xlink:type="simple">impn@impn.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/0000-0002-1410-8747</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вшивков</surname><given-names>Виталий Алексеевич</given-names></name><name name-style="western" xml:lang="en"><surname>Vshivkov</surname><given-names>Vitaly A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. мед. наук, ст. науч. сотр., НИИ медицинских проблем Севера ФГБНУ «Федеральный исследовательский центр «Красноярский научный центр СО РАН».</p><p>e-mail: vitali1983@mail.ru</p></bio><email xlink:type="simple">vitali1983@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинских проблем Севера ФГБНУ Федеральный исследовательский центр «Красноярский научный центр Сибирского отделения Российской академии наук»; ФГБОУ ВО «Красноярский государственный медицинский университет им. проф. В.Ф. Войно-Ясенецкого» Минздрава России</institution></aff><aff xml:lang="en"><institution>Scientific Research Institute for Medical Problems of the North, Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences; V.F. Voino-Yasenetsky Krasnoyarsk State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-исследовательский институт медицинских проблем Севера ФГБНУ Федеральный исследовательский центр «Красноярский научный центр Сибирского отделения Российской академии наук»</institution></aff><aff xml:lang="en"><institution>Scientific Research Institute for Medical Problems of the North, Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>11</day><month>10</month><year>2023</year></pub-date><volume>25</volume><issue>1</issue><fpage>39</fpage><lpage>45</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Поливанова Т.В., Каспаров Э.В., Вшивков В.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Поливанова Т.В., Каспаров Э.В., Вшивков В.А.</copyright-holder><copyright-holder xml:lang="en">Polivanova T.V., Kasparov E.V., Vshivkov V.A.</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.rosped.ru/jour/article/view/349">https://www.rosped.ru/jour/article/view/349</self-uri><abstract><sec><title>Введение</title><p>Введение. Важным моментом в профилактике и оценке риска рака пищевода и желудка является выявление их предикторов, предрасполагающих к прогрессирующему течению воспаления в гастродуоденальной зоне, в частности, синдром перекрёста гастроэзофагеальной рефлюксной болезни (ГЭРБ) и синдрома диспепсии (СД).</p><p>Цель — определить этнические особенности распространённости и клинических проявлений перекрёста ГЭРБ с СД у школьников монголоидных и европеоидных популяций Тывы, Эвенкии и Бурятии.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проведено поперечное анкетирование для анализа гастроэнтерологических жалоб у школьников в возрасте 7–17 лет с последующей случайной гастроскопией с биопсией слизистой желудка. В Республике Тыва обследованы 641 европеоид, 894 монголоида; в Республике Бурятия — 168 европеоидов, 622 монголоида; в Эвенкийском автономном округе — 993 европеоида, 376 монголоидов. Эндоскопически обследованы в Республике Тыва — 122 европеоида, 158 монголоидов; в Республике Бурятия — 28 европеоидов, 82 монголоида; в Эвенкийском автономном округе — 133 европеоида, 71 монголоид. Все полученные данные обработаны статистически.</p></sec><sec><title>Результаты</title><p>Результаты. Среди обследованных школьников Сибирского региона распространённость синдрома перекрёста ГЭРБ с СД составила 4,7%. Отмечено увеличение показателей среди монголоидных популяций — 5,7% по сравнению с 3,6% среди европеоидов. У школьников монголоидов с синдромом перекрёста чаще выявлялся вариант СД с эпигастральной болью. При этом независимо от этнической принадлежности у школьников с синдромом перекрёста увеличена вероятность формирования эрозивно-язвенных поражений слизистой оболочки гастродуоденальной зоны.</p></sec><sec><title>Заключение</title><p>Заключение. Синдром перекрёста у школьников Сибири имеет выраженное неблагоприятное течение в этнических популяциях монголоидов и европеоидов.</p></sec><sec><title>Участие авторов</title><p>Участие авторов:Поливанова Т.В., Вшивков В.А. — концепция и дизайн исследования;Каспаров Э.В., Вшивков В.А. — сбор и обработка материала;Поливанова Т.В. — написание текста;Вшивков В.А. — редактирование.Все соавторы — утверждение окончательного варианта статьи, ответственность за целостность всех её частей.</p></sec><sec><title>Финансирование</title><p>Финансирование. Исследование не имело финансовой поддержки.</p></sec><sec><title>Конфликт интересов</title><p>Конфликт интересов. Авторы заявляют об отсутствии конфликта интересов.</p></sec><sec><title>Поступила 19</title><p>Поступила 19.11.2021Принята в печать 17.02.2022Опубликована 15.03.2022</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. An essential point in the prevention and risk assessment of these diseases is identifying their predictors predisposing to a progressive course of inflammation in the gastroduodenal zone, particularly gastroesophageal reflux disease (GERD) intersection syndrome and dyspepsia syndrome (DS). A more unfavourable situation is observed among the indigenous — Mongoloid populations.</p><p>The aim of the study is to investigate the ethnic features of the prevalence and clinical manifestations of the intersection of GERD with DS in schoolchildren of Mongoloid and Caucasian populations of Tuva, Evenkia and Buryatia.</p></sec><sec><title>Material and methods</title><p>Material and methods. A cross-sectional survey was carried out on the presence of gastroenterological complaints in schoolchildren aged 7–17 years, followed by random gastroscopy with a biopsy of the gastric mucosa. Six hundred forty one Caucasians, 894 Mongoloids were examined in the Republic of Tuva; in Buryatia, there are 168 Caucasians, 622 Mongoloids; in Evenkia, there are 993 Caucasians, 376 Mongoloids. Endoscopically examined: in Tuva, 122 Caucasians, 158 Mongoloids; in Buryatia — 28 Caucasians, 82 Mongoloids; in Evenkia, there are 133 Caucasians, 71 Mongoloid.</p></sec><sec><title>Results</title><p>Results. Among schoolchildren in the Siberian region, the prevalence of GERD overlap syndrome with DS was 4.7%. An increase in indices was noted among the Mongoloid populations: by 5.7% and 3.6% among Caucasians. Schoolchildren of Mongoloid populations with the overlapping syndrome often had a variant of dyspepsia with epigastric pain. At the same time, regardless of ethnicity, schoolchildren with intersection syndrome have an increased likelihood of forming erosive and ulcerative lesions of the mucous membrane of the gastroduodenal zone.</p></sec><sec><title>Conclusion</title><p>Conclusion. The syndrome of overlapping in Siberian schoolchildren has a more unfavourable course with features in the ethnic populations of Mongoloids and Caucasians.</p></sec><sec><title>Contribution</title><p>Contribution:Polivanova T.V., Vshivkov V.A. — concept and design of the study;Kasparov E.V., Vshivkov V.A. — collection and processing of the material;Polivanova T.V. — writing the text;Vshivkov V.A. — editing.All co-authors — approval of the final version of the article, responsibility for the integrity of all its parts.</p></sec><sec><title>Acknowledgement</title><p>Acknowledgement. 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: November 19, 2021Accepted: February 17, 2021Published: March 15, 2021</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>синдром перекрёста</kwd><kwd>гастроэзофагеальная рефлюксная болезнь</kwd><kwd>синдром диспепсии</kwd><kwd>школьники</kwd><kwd>популяция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>crossing syndrome</kwd><kwd>gastroesophageal reflux disease</kwd><kwd>dyspepsia syndrome</kwd><kwd>schoolchildren</kwd><kwd>population</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">El-Serag H.B., Sweet S., Winchester C.C., Dent J. Update on the epidemiology of gastro-oesophageal reflux disease: a systematic review. 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