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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">problendo</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы Эндокринологии</journal-title><trans-title-group xml:lang="en"><trans-title>Problems of Endocrinology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0375-9660</issn><issn pub-type="epub">2308-1430</issn><publisher><publisher-name>Endocrinology Research Centre</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14341/probl13309</article-id><article-id custom-type="elpub" pub-id-type="custom">problendo-13309</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>Клиническая эндокринология</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Clinical endocrinology</subject></subj-group></article-categories><title-group><article-title>Сравнение эффективности различных методов определения уровня метанефринов в диагностике феохромоцитом</article-title><trans-title-group xml:lang="en"><trans-title>Comparison of the effectiveness of various methods for determining the level of metanephrines in the diagnosis of pheochromocytomas</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3876-6306</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шихмагомедов</surname><given-names>Ш. Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Shikhmagomedov</surname><given-names>Sh. Sh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шихмагомедов Шамиль Шамсудинович</p><p>195369, Санкт-Петербург, ул. Учительская, д. 6</p></bio><bio xml:lang="en"><p>Shamil Sh. Shikhmagomedov, MD</p><p>6 Uchitelskay street, 195369 Saint-Petersburg</p></bio><email xlink:type="simple">shamil.surg@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7840-4174</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Реброва</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Rebrova</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Реброва Дина Владимирована, к.м.н.</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Dina V. Rebrova, MD, PhD</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">endocrinology@list.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/0000-0003-4449-0251</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Краснов</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasnov</surname><given-names>L. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Краснов Леонид Михайлович, д.м.н., профессор</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Leonid M. Krasnov, MD, PhD, Professor</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">krasnov.surg@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/0000-0002-1294-811X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федоров</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorov</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федоров Елисей Александрович, к.м.н.</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Elisey A. Fedorov, MD, PhD</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">elick@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/0000-0001-6986-1034</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чинчук</surname><given-names>И. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Chinchuk</surname><given-names>I. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чинчук Игорь Константинович, к.м.н.</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Igor K. Chinchuk, MD, PhD</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">dr.chinchuk@bk.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/0000-0002-3001-664X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черников</surname><given-names>Р. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernikov</surname><given-names>R. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Черников Роман Анатольевич, д.м.н.</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Roman A. Chernikov, MD, PhD</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">yaddd@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/0000-0002-6807-778X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Русаков</surname><given-names>В. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Rusakov</surname><given-names>V. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Русаков Владимир Федорович, к.м.н.</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Vladimir F. Rusakov, MD, PhD</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">rusvf@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/0000-0002-1903-5081</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Слепцов</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Slepstov</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Слепцов Илья Валерьевич, д.м.н.</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Ilia V. Slepstov, MD, PhD</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">newsurgery@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/0000-0003-3500-2826</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Згода</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zgoda</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Згода Екатерина Александровна</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Ekaterina A. Zgoda, MD</p><p>Saint-Petersburg</p></bio><email xlink:type="simple">kateryna.zgoda@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет, Клиника высоких медицинских технологий им. Н.И. Пирогова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg State University Hospita</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>16</day><month>10</month><year>2023</year></pub-date><volume>70</volume><issue>2</issue><fpage>46</fpage><lpage>52</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шихмагомедов Ш.Ш., Реброва Д.В., Краснов Л.М., Федоров Е.А., Чинчук И.К., Черников Р.А., Русаков В.Ф., Слепцов И.В., Згода Е.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Шихмагомедов Ш.Ш., Реброва Д.В., Краснов Л.М., Федоров Е.А., Чинчук И.К., Черников Р.А., Русаков В.Ф., Слепцов И.В., Згода Е.А.</copyright-holder><copyright-holder xml:lang="en">Shikhmagomedov S.S., Rebrova D.V., Krasnov L.M., Fedorov E.A., Chinchuk I.K., Chernikov R.A., Rusakov V.F., Slepstov I.V., Zgoda E.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.probl-endojournals.ru/jour/article/view/13309">https://www.probl-endojournals.ru/jour/article/view/13309</self-uri><abstract><sec><title>ОБОСНОВАНИЕ</title><p>ОБОСНОВАНИЕ. Феохромоцитома (ФХЦ) — опухоль из хромаффинной ткани мозгового вещества надпочечника, способная к гиперпродукции катехоламинов. Повышенная продукция гормонов опухолью приводит к катехоламиновым кризам, оказывающим патологическое влияние на все органы и системы. В первичной диагностике феохромоцитом важное значение имеет определение уровня метаболитов катехоламинов — метанефринов. В настоящее время в клинической практике применяются различные методы определения уровня данного метаболита: в плазме крови или в моче, общего количества или только свободной формы, фракционированный анализ или нефракционированный.</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Сравнение эффективности различных методов определения уровня метанефринов для диагностики феохромоцитом.</p></sec><sec><title>МАТЕРИАЛЫ И МЕТОДЫ</title><p>МАТЕРИАЛЫ И МЕТОДЫ. Ретроспективное одноцентровое когортное исследование было проведено на выборке пациентов, первично прооперированных по поводу новообразования надпочечника в Клинике высоких медицинских технологий им. Н.И. Пирогова СПбГУ с ноября 2007 по декабрь 2022 гг. и сдававших анализы на определение уровня метанефринов крови или мочи перед оперативным лечением. Оценивались результаты анализов на метанефрины и размер опухоли.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Исследованы 1088 пациентов с новообразованиями надпочечников, подвергшихся оперативному лечению, из которых у 348 было гистологически подтверждено наличие феохромоцитомы. Выполнено сравнение четырех видов анализов на метанефрины: свободные фракционированные метанефрины плазмы (232 пациента), нефракционированные метанефрины суточной мочи (431 пациент), фракционированные общие метанефрины суточной мочи (427 пациентов) и фракционированные свободные метанефрины суточной мочи (178 пациентов). Наибольшую чувствительность продемонстрировал анализ свободных фракционированных метанефринов плазмы крови (95,4%). В отличие от других, чувствительность данного анализа не снижалась в группе больных с феохромоцитомами небольших размеров (3 см и менее). Наибольшую специфичность продемонстрировал анализ нефракционированных метанефринов суточной мочи (97,8%), при наименьшей среди всех тестов чувствительности (67,6%). Исследование фракционированных общих метанефринов суточной мочи показало хорошие результаты чувствительности и специфичности, лишь немного уступая лучшим показателям, а анализ свободных метанефринов суточной мочи продемонстрировал неожиданно низкую эффективность. Между уровнем метанефринов в крови и размерами опухоли установлено наличие положительной корреляции.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. Исходя из полученных данных, предпочтительными анализами для первичной диагностики феохромоцитом можно назвать определение фракционированных свободных метанефринов плазмы и фракционированных общих метанефринов суточной мочи, что согласуется с существующими клиническими рекомендациями. Размер опухоли коррелирует с выраженностью повышения уровня метанефринов определенным любым из описанных способов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>BACKGROUND</title><p>BACKGROUND: Pheochromocytoma (PHEO) is a tumor from the chromaffin tissue of the adrenal medulla, capable of hyperproduction of catecholamines. The increased production of hormones by the tumor leads to catecholamine crises, which have a pathological effect on all organs and systems. In the primary diagnosis of pheochromocytomas, it is important to determine the level of the metabolite of catecholamines — metanephrines. Currently, in clinical practice, various methods are used to determine the level of this metabolite: in blood plasma or in urine, total or only free form, fractionated analysis or unfractionated.</p></sec><sec><title>AIM</title><p>AIM: Comparison of the effectiveness of various methods for determining the level of metanephrines for the diagnosis of pheochromocytomas.</p></sec><sec><title>MATERIALS AND METHODS</title><p>MATERIALS AND METHODS: A retrospective single-center cohort study was conducted on a sample of patients who were initially operated on for adrenal neoplasm at the Pirogov St. Petersburg State University High Medical Technology Clinic from November 2007 to December 2022 and who passed analysis to determine the level of blood or urine metanephrins before surgical treatment. The results of tests for metanephrine and tumor size were evaluated.</p></sec><sec><title>RESULTS</title><p>RESULTS: 1088 patients with adrenal neoplasms who underwent surgical treatment were examined, of which 348 had histologically confirmed the presence of pheochromocytoma. Four types of metanephrine assays were compared: free fractionated plasma metanephrines (232 patients), unfractionated daily urine metanephrines (431 patients), fractionated total daily urine metanephrines (427 patients) and fractionated free daily urine metanephrines (178 patients). The greatest sensitivity was demonstrated by the analysis of free fractionated plasma methanephrines (95.4%). Unlike others, the sensitivity of this analysis did not decrease in the group of patients with small pheochromocytomas (3 cm or less). The greatest specificity was demonstrated by the analysis of unfractionated metanephrines in daily urine (97.8%), with the lowest sensitivity among all tests (67.6%). The study of fractionated total daily urine metanephrins showed good results of sensitivity and specificity, only slightly inferior to the best indicators, and the analysis of free daily urine metanephrins demonstrated unexpectedly low efficiency. There is a positive correlation between the level of metanephrine in the blood and the size of the tumor.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION: Based on the data obtained, the preferred assays for the primary diagnosis of pheochromocytoma can be considered the determination of fractionated free plasma metanephrines and fractionated total daily urine metanephrines, which is consistent with relevant clinical recommendations. It was found that the size of the tumor correlates with the severity of an increase in the level of metanephrins determined by any of the described methods.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>метанефрины</kwd><kwd>феохромоцитома</kwd><kwd>новообразования надпочечников</kwd></kwd-group><kwd-group xml:lang="en"><kwd>metanephrines</kwd><kwd>pheochromocytoma</kwd><kwd>adrenal neoplasms</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">Lenders JW, Kerstens MN, Amar L, et al. Genetics, diagnosis, management and future directions of research of phaeochromocytoma and paraganglioma: a position statement and consensus of the Working Group on Endocrine Hypertension of the European Society of Hypertension. 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