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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">vsp</journal-id><journal-title-group><journal-title xml:lang="ru">Вопросы современной педиатрии</journal-title><trans-title-group xml:lang="en"><trans-title>Current Pediatrics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-5527</issn><issn pub-type="epub">1682-5535</issn><publisher><publisher-name>Издательство «ПедиатрЪ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15690/vsp.v19i5.2212</article-id><article-id custom-type="elpub" pub-id-type="custom">vsp-2497</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>КЛИНИЧЕСКОЕ НАБЛЮДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL OBSERVATIONS</subject></subj-group></article-categories><title-group><article-title>Опыт применения препарата идурсульфаза бета у ребенка с мукополисахаридозом II типа: клинический случай</article-title><trans-title-group xml:lang="en"><trans-title>Experience of Idursulfase Beta Administration in the Child with Mucopolysaccharidosis Type II: Clinical Case</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6865-0136</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кручина</surname><given-names>Т. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kruchina</surname><given-names>Tatiana K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кручина Татьяна Кимовна, доктор медицинских наук, профессор кафедры детских болезней им. проф. И.М. Воронцова СПбГПМУ</p><p>194100, Санкт-Петербург, ул. Литовская, д. 2</p></bio><bio xml:lang="en"><p>Saint Petersburg</p></bio><email xlink:type="simple">tkruchina@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бручиков</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bruchikov</surname><given-names>Konstantin V.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"><p>Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7571-5460</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новик</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Novik</surname><given-names>Gennady A.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"><p>Saint Petersburg</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Санкт-Петербургский государственный педиатрический медицинский университет;&#13;
Детский городской многопрофильный клинический специализированный центр высоких медицинских технологий<country>Россия</country></aff><aff xml:lang="en">Saint Petersburg State Pediatric Medical University;&#13;
Children’s City Multidisciplinary Clinical Specialized Center of High Medical Technologies<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Детский городской многопрофильный клинический специализированный центр высоких медицинских технологий<country>Россия</country></aff><aff xml:lang="en">Children’s City Multidisciplinary Clinical Specialized Center of High Medical Technologies<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Санкт-Петербургский государственный педиатрический медицинский университет<country>Россия</country></aff><aff xml:lang="en">Saint Petersburg State Pediatric Medical University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2020</year></pub-date><volume>19</volume><issue>5</issue><fpage>364</fpage><lpage>370</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кручина Т.К., Бручиков К.В., Новик Г.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Кручина Т.К., Бручиков К.В., Новик Г.А.</copyright-holder><copyright-holder xml:lang="en">Kruchina T.K., Bruchikov K.V., Novik G.A.</copyright-holder><license 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://vsp.spr-journal.ru/jour/article/view/2497">https://vsp.spr-journal.ru/jour/article/view/2497</self-uri><abstract><sec><title>Обоснование</title><p>Обоснование. Мукополисахаридоз II типа (МПС II, синдром Хантера) — это редкая наследственная лизосомная болезнь накопления, связанная с дефицитом фермента идуронат-2-сульфатазы. Пациенты с МПС II нуждаются в пожизненной ферментозаместительной терапии (ФЗТ), восполняющей дефицит эндогенного фермента. В Российской Федерации для этих целей разрешены и рекомендованы два препарата — идурсульфаза и идурсульфаза бета. Вместе с тем известно, что ФЗТ сопряжена с риском развития реакций гиперчувствительности.</p><p>Описание клинического случая. У пациента мужского пола с тяжелой формой МПС II в возрасте 2,5 лет была инициирована ФЗТ, назначен препарат идурсульфаза в дозировке 0,5 мг/кг один раз в неделю. Периодически отмечались реакции гиперчувствительности (крапивница, повышение температуры), в связи с чем проводилась премедикация антигистаминными препаратами и антипиретиками. С 8 лет побочные эффекты ФЗТ участились и усилились без стойкого улучшения на фоне назначения глюкокортикостероидов и снижения скорости инфузии до 8–16 мл/ч. Было проведено переключение пациента на препарат идурсульфаза бета с хорошим клиническим эффектом: достигнут контроль и основного заболевания, и развития аллергических реакций.</p></sec><sec><title>Заключение</title><p>Заключение. Наличие двух препаратов для ФЗТ пациентов с МПС II расширяет возможности лечения. При возникновении аллергических реакций на препарат идурсульфаза переключение на препарат идурсульфаза бета снижает риск возникновения осложнений ФЗТ при достаточном контроле течения МПС II.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. Mucopolysaccharidosis type II (MPS II, Hunter syndrome) is a rare hereditary lysosomal storage disease associated with iduronate-2-sulfatase deficiency. Patients with MPS II require life-long enzyme replacement therapy (ERT) to replace the deficiency of endogenous enzyme. There are two medications — idursulfase and idursulfase beta — that are licensed and recommended for these patients in Russian Federation. However, it is well known that ERT can cause hypersensitivity reactions development.</p><p>Clinical Case Description. The ERT (idursulfase in the dose of 0.5 mg/kg once per week) onset in the male patient with severe MPS II was at the age of 2.5 years. Hypersensitivity reactions (urticaria, fever) were noted incidentally, thus, the premedication with antihistamines and antipyretics was performed. The ERT side effects has aggravated at the age of 8 years despite the glucocorticosteroids admission and infusion rate reduction up to 8–16 ml/h. That is why we have changed the medication on idursulfase beta with major clinical response: we have achieved control on both disease itself and hypersensitivity reactions.</p></sec><sec><title>Conclusion</title><p>Conclusion. The availability of two ERT medications for patients with MPS II expands treatment opportunities. In case of any allergic reactions due to idursulfase, the change on idursulfase beta reduces the risk of any ERT complications with sufficient control of MPS II course.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>мукополисахаридоз</kwd><kwd>ферментозаместительная терапия</kwd><kwd>идурсульфаза бета</kwd><kwd>дети</kwd><kwd>клинический случай</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mucopolysaccharidosis</kwd><kwd>enzyme replacement therapy</kwd><kwd>idursulfase beta</kwd><kwd>children</kwd><kwd>clinical case</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Не указан.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>Not specified.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Hunter C. A Rare Disease in Two Brothers. 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