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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">Ophthalmology Reports</journal-id><journal-title-group><journal-title xml:lang="en">Ophthalmology Reports</journal-title><trans-title-group xml:lang="ru"><trans-title>Офтальмологические ведомости</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1998-7102</issn><issn publication-format="electronic">2412-5423</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">567990</article-id><article-id pub-id-type="doi">10.17816/OV567990</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">Surgical treatment of Ahmed glaucoma valve’s tube protrusion relapse. Clinical observations</article-title><trans-title-group xml:lang="ru"><trans-title>Хирургическое лечение рецидива протрузии трубки клапанного дренажа Ahmed. Клинические наблюдения</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title/></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4496-0703</contrib-id><name-alternatives><name xml:lang="en"><surname>Starostina</surname><given-names>Anna V.</given-names></name><name xml:lang="ru"><surname>Старостина</surname><given-names>Анна Владимировна</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine)</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>anna.mntk@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4383-0325</contrib-id><name-alternatives><name xml:lang="en"><surname>Burlakov</surname><given-names>Konstantin S.</given-names></name><name xml:lang="ru"><surname>Бурлаков</surname><given-names>Константин Сергеевич</given-names></name><name xml:lang="zh"><surname></surname><given-names></given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>konstantin.burlakow@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">S. Fyodorov Eye Microsurgery Federal State Institution</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр «Межотраслевой научно-технический комплекс «Микрохирургия глаза» им. акад. С.Н. Фёдорова»</institution></aff><aff><institution xml:lang="zh"></institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-01-12" publication-format="electronic"><day>12</day><month>01</month><year>2024</year></pub-date><volume>16</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><issue-title xml:lang="zh"/><fpage>91</fpage><lpage>97</lpage><history><date date-type="received" iso-8601-date="2023-08-03"><day>03</day><month>08</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-10-14"><day>14</day><month>10</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Эко-Вектор</copyright-statement><copyright-statement xml:lang="zh">Copyright ©; 2024,</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2027-01-12"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://eco-vector.com/for_authors.php#07</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/ov/article/view/567990">https://journals.eco-vector.com/ov/article/view/567990</self-uri><abstract xml:lang="en"><p>In the practice of an ophthalmic surgeon, patients with a large number of concomitant conditions after repeated surgical interventions are seen with increasingly frequency. One of the grave complications in such patients is secondary glaucoma with a refractory type of course. After successful compensation of intraocular pressure in such patients, the risk of complications increases many times, for example, protrusion of the Ahmed valve drainage tube, which becomes the entrance gate for infection, which can lead to endophthalmitis. This article presents clinical cases of surgical treatment of recurrent protrusion of the Ahmed valve drainage tube.</p></abstract><trans-abstract xml:lang="ru"><p>В практике офтальмохирурга всё чаще встречаются пациенты с большим количеством коморбидной патологии после неоднократных хирургических вмешательств. Одно из грозных осложнений у таких пациентов — вторичная глаукома с рефрактерным типом течения. После успешной компенсации внутриглазного давления у таких пациентов многократно возрастает риск осложнений, например протрузия трубки клапанного дренажа Ahmed, которая становится входными воротами для инфекции, что может привести к эндофтальмиту. В данной статье представлены клинические случаи хирургического лечения рецидивов протрузии трубки клапанного дренажа Ahmed.</p></trans-abstract><trans-abstract xml:lang="zh"><p/></trans-abstract><kwd-group xml:lang="en"><kwd>secondary glaucoma</kwd><kwd>Ahmed valve</kwd><kwd>valve drainage tube protrusion</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>вторичная глаукома</kwd><kwd>клапан Ahmed</kwd><kwd>протрузия трубки клапанного дренажа</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was funded by S. Fyodorov Eye Microsurgery Federal State Institution.</funding-statement><funding-statement xml:lang="ru">Исследование и публикация статьи финансируются из бюджета ФГАУ «МНТК «Микрохирургия глаза» им. акад. С.Н. 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