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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Allergy</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Allergy</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский Аллергологический Журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1810-8830</issn><issn publication-format="electronic">2686-682X</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">1567</article-id><article-id pub-id-type="doi">10.36691/RJA1567</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Case reports</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Клинические случаи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">A case of titanium-coated pacemaker allergy in a 14-year-old patient</article-title><trans-title-group xml:lang="ru"><trans-title>Клинический случай аллергии на титановое покрытие имплантированного кардиовертера-дефибриллятора у пациента 14 лет</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8792-2670</contrib-id><contrib-id contrib-id-type="spin">6924-9726</contrib-id><name-alternatives><name xml:lang="en"><surname>Esakova</surname><given-names>Natalia V.</given-names></name><name xml:lang="ru"><surname>Есакова</surname><given-names>Наталья Владиславовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Med.), Senior Research Associate</p></bio><bio xml:lang="ru"><p>к.м.н., с.н.с.</p></bio><email>env007@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2466-7865</contrib-id><contrib-id contrib-id-type="spin">5785-5776</contrib-id><name-alternatives><name xml:lang="en"><surname>Termosesov</surname><given-names>Sergey A.</given-names></name><name xml:lang="ru"><surname>Термосесов</surname><given-names>Сергей Артурович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>stermosesov@pedklin.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7115-0186</contrib-id><contrib-id contrib-id-type="spin">9051-7107</contrib-id><name-alternatives><name xml:lang="en"><surname>Shkolnikova</surname><given-names>Maria A.</given-names></name><name xml:lang="ru"><surname>Школьникова</surname><given-names>Мария Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>m_shkolnikova@pedklin.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5039-8473</contrib-id><contrib-id contrib-id-type="spin">9722-7961</contrib-id><name-alternatives><name xml:lang="en"><surname>Pampura</surname><given-names>Alexander N.</given-names></name><name xml:lang="ru"><surname>Пампура</surname><given-names>Александр Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Med.), Professor</p></bio><bio xml:lang="ru"><p>д.м.н., профессор</p></bio><email>apampura@pedklin.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Veltischev Research and Clinical Institute for Pediatrics of the Russian National Research Medical University named after N.I. Pirogov</institution></aff><aff><institution xml:lang="ru">Научно-исследовательский клинический институт педиатрии имени академика Ю.Е. Вельтищева ФГАОУ ВО «Российский национальный исследовательский медицинский университет имени Н.И. Пирогова»</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2022-09-14" publication-format="electronic"><day>14</day><month>09</month><year>2022</year></pub-date><pub-date date-type="pub" iso-8601-date="2022-10-08" publication-format="electronic"><day>08</day><month>10</month><year>2022</year></pub-date><volume>19</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>404</fpage><lpage>409</lpage><history><date date-type="received" iso-8601-date="2022-07-28"><day>28</day><month>07</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-09-01"><day>01</day><month>09</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Pharmarus Print Media</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Фармарус Принт Медиа</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Pharmarus Print Media</copyright-holder><copyright-holder xml:lang="ru">Фармарус Принт Медиа</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2024-10-08"/></permissions><self-uri xlink:href="https://rusalljournal.ru/raj/article/view/1567">https://rusalljournal.ru/raj/article/view/1567</self-uri><abstract xml:lang="en"><p>Currently, titanium is widely used in implants, particularly in cardioresynchronizing devices, such as pacemakers, because it is well tolerated by patients and rarely causes allergic reactions. The low informative value of the allergy testing for titanium makes its allergy diagnosis difficult. Experts reported that false negative results of skin application tests with titanium may be associated with the use of titanium tetrachloride in allergy testing, which is not pure metal. The use of glucocorticoids in treating pacemaker component-related allergy is temporary and does not exclude recurrence of inflammation. The main treatment for patients is the replacement of the implantable system with a device made of the most hypoallergenic materials.</p> <p>The present paper describes a case of a 14-year-old patient with an allergy to a titanium-coated pacemaker. This is the first time eosinophil cationic protein and tryptase are detected at the inflammation site while diagnosing allergy to a titanium-coated pacemaker. This study concludes that the level of eosinophilic cationic protein and tryptase in the inflammation site is a promising marker in metal allergy diagnosis and requires further research.</p> <p>Timely diagnosis of titanium allergy and the reimplantation of a gold-coated pacemaker prevent the recurrence of inflammatory changes in the area of pacemaker insertion and infectious complications, thereby significantly improving patient prognosis.</p></abstract><trans-abstract xml:lang="ru"><p>В настоящее время титан широко используется в имплантатах, в частности в таких кардиоресинхронизирующих устройствах, как кардиовертеры-дефибрилляторы, поскольку хорошо переносится пациентами и редко становится причиной аллергических реакций. Диагностика аллергии на титан крайне затруднительна в связи с низкой информативностью доступных аллергологических тестов к данному металлу. По мнению специалистов, ложноотрицательные результаты кожных аппликационных тестов с титаном могут быть связаны с использованием в аллерготестировании не чистого металла, а его соединения с хлором ― тетрахлорида титана. Применение глюкокортикоидов в терапии аллергических реакций на компоненты имплантируемого кардиовертера-дефибриллятора носит временный характер и не исключает рецидивов воспаления. Основным лечением пациентов в таких случаях является замена имплантируемой системы на аппарат из максимально гипоаллергенных материалов.</p> <p>В настоящей статье описывается клинический случай аллергии на кардиостимулятор с титановым покрытием, имплантированный 14-летнему пациенту. В ходе диагностики гиперчувствительности к титану впервые зафиксированы высокие уровни эозинофильного катионного протеина и триптазы непосредственно в очаге воспаления наряду с нормальными значениями данных показателей в сыворотке крови. Сделан вывод, что концентрация эозинофильного катионного протеина и триптазы в очаге воспаления представляется перспективным маркером при диагностике аллергии на металл и требует дальнейших исследований.</p> <p>Своевременная диагностика аллергии на титан и реимплантация кардиостимулятора с золотым покрытием предотвращает развитие рецидивов воспалительных изменений в ложе кардиостимулятора, снижает риск инфекционных осложнений и существенно улучшает прогноз для пациента.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pacemaker</kwd><kwd>titanium</kwd><kwd>allergy</kwd><kwd>tryptase</kwd><kwd>eosinophilic cationic protein</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>кардиостимулятор</kwd><kwd>титан</kwd><kwd>аллергия</kwd><kwd>триптаза</kwd><kwd>эозинофильный катионный протеин</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">Raque C, Goldschmidt H. 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