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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">akusherstvo</journal-id><journal-title-group><journal-title xml:lang="en">Obstetrics, Gynecology and Reproduction</journal-title><trans-title-group xml:lang="ru"><trans-title>Акушерство, Гинекология и Репродукция</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2313-7347</issn><issn pub-type="epub">2500-3194</issn><publisher><publisher-name>IRBIS LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17749/2313-7347/ob.gyn.rep.2023.448</article-id><article-id custom-type="elpub" pub-id-type="custom">akusherstvo-1802</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="en"><subject>ОRIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group></article-categories><title-group><article-title>Effect of same dose varying concentration poractant alfa on outcomes in preterm infants under 32 weeks of age</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние различных концентраций порактанта альфа с одинаковой дозой на исходы у недоношенных новорожденных менее 32 недель</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7040-9683</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мостовой</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mostovoi</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мостовой Алексей Валерьевич – к.м.н., врач анестезиолог-реаниматолог, врач-неонатолог, руководитель службы реанимации и интенсивной терапии ГБУЗ «Городская клиническая больница № 67 имени Л.А. Ворохобова Департамента здравоохранения города Москвы»; доцент кафедры неонатологии имени профессора В.В. Гаврюшова ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Министерства здравоохранения Российской Федерации; ассистент кафедры поликлинической терапии, клинической лабораторной диагностики и медицинской биохимии ИПДО ФГБОУ ВО «Ярославский государственный медицинский университет» Министерства здравоохранения Российской Федерации; главный внештатный специалист-неонатолог Министерства здравоохранения Российской Федерации в Северо-Кавказском федеральном округе; член Совета Российского общества неонатологов; член Европейского общества исследований в области педиатрии (ESPR)</p><p>123423 Москва, ул. Саляма Адиля, д. 2/44, с. 4</p><p>123995 Москва, ул. Баррикадная, 2/1, корп. 1</p><p>150000 Ярославль, ул. Революционная, д. 5</p></bio><bio xml:lang="en"><p>Aleksei V. Mostovoi – MD, PhD, Intensive Care Specialist, Neonatologist, Head of Resuscitation and Intensive Care Service, Vorokhobov City Clinical Hospital No. 67; Associate Professor, Gavryushov Neonatal Department, Russian Medical Academy of Continuous Professional Education; Assistant, Department of Polyclinic Therapy, Clinical Laboratory Diagnostics and Medical Biochemistry, Yaroslavl State Medical University; Chief External Neonatologist of the Ministry of Health of the Russian Federation in the North Caucasus Federal District; Board Member of the Russian Society of Neonatologists; Member of the European Society for Pediatric Research (ESPR).</p><p>2/44 bldg. 4, Salyama Adilya Str., Moscow 123423</p><p>2/1, bldg. 1, Barrikadnaya Str., Moscow 123993</p><p>5 Revolutsionnaya Str., Yaroslavl 150000</p></bio><email xlink:type="simple">alvalmost@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/0000-0002-1024-0230</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карпова</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Karpova</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Карпова Анна Львовна – к.м.н., врач-анестезиолог-реаниматолог, врач-неонатолог, зав. неонатологическим стационаром ГБУЗ «Городская клиническая больница № 67 имени Л.А. Ворохобова Департамента здравоохранения города Москвы»; доцент кафедры неонатологии имени профессора В.В. Гаврюшова ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Министерства здравоохранения Российской Федерации; ассистент кафедры поликлинической терапии, клинической лабораторной диагностики и медицинской биохимии ИПДО ФГБОУ ВО «Ярославский государственный медицинский университет» Министерства здравоохранения Российской Федерации; член Совета Российского общества неонатологов</p><p>123423 Москва, ул. Саляма Адиля, д. 2/44, с. 4</p><p>123995 Москва, ул. Баррикадная, 2/1, корп. 1</p><p>150000 Ярославль, ул. Революционная, д. 5</p></bio><bio xml:lang="en"><p>Anna L. Karpova – MD, PhD, Head of Neonatal Department of Perinatal Center, Vorohobov’s City Clinical Hospital No. 67; Associate Professor, Gavryushov Neonatal Department, Russian Medical Academy of Continuous Professional Education; Assistant, Department of Polyclinic Therapy, Clinical Laboratory Diagnostics and Medical Biochemistry, Yaroslavl State Medical University; Board Member of the Russian Society of Neonatologists.</p><p>2/44 bldg. 4, Salyama Adilya Str., Moscow 123423</p><p>2/1, bldg. 1, Barrikadnaya Str., Moscow 123993</p><p>5 Revolutsionnaya Str., Yaroslavl 150000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4205-5547</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Межинский</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mezhinsky</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Межинский Семен Сергеевич – к.м.н., врач-анестезиолог-реаниматолог отделения реанимации и интенсивной терапии для новорожденных ГБУЗ «Морозовская детская городская клиническая больница Департамента здравоохранения города Москвы»; ассистент кафедры неонатологии имени профессора В.В. Гаврюшова ДПО «Российская медицинская академия непрерывного профессионального образования» Министерства здравоохранения Российской Федерации</p><p>123995 Москва, ул. Баррикадная, 2/1, корп. 1</p><p>119049 Москва, 4-й Добрынинский переулок, д. 1/9</p></bio><bio xml:lang="en"><p>Semen S. Mezhinsky – MD, PhD, Assistant, Gavryushov Neonatal Department, Russian Medical Academy of Continuous Professional Education, Moscow, Russia; Intensive Care Specialist, Neonatal Intensive Care Unit, Morozovskaya Children's City Clinical Hospital</p><p>2/1, bldg. 1, Barrikadnaya Str., Moscow 123993</p><p>1/9 4th Dobryninsky Lane, Moscow 119049</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/0000-0002-2667-8229</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Володин</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Volodin</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Володин Николай Николаевич – д.м.н., профессор, академик РАН, Президент Российской ассоциации специалистов перинатальной медицины, руководитель отдела педиатрии ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии имени Дмитрия Рогачева» Министерства здравоохранения Российской Федерации</p><p>117997 Москва, ул. Саморы Машела, 1</p></bio><bio xml:lang="en"><p>Nikolai N. Volodin – MD, Dr Sci Med, Professor, Academician of the Russian Academy of Sciences, Honored Doctor of the Russian Federation, Head of the Pediatrics Department, Dmitry Rogachev National Medical Research Center for Pediatric Hematology, Oncology and Immunology.</p><p>1 Samora Machel Str., Moscow 117997</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБУЗ «Городская клиническая больница № 67 имени Л.А. Ворохобова Департамента здравоохранения города Москвы»; ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Министерства здравоохранения Российской Федерации; ФГБОУ ВО «Ярославский государственный медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Vorokhobov City Clinical Hospital № 67, Moscow Healthcare Department; Russian Medical Academy of Continuous Professional Education, Health Ministry of Russian Federation; Yaroslavl State Medical University, Health Ministry of Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Министерства здравоохранения Российской Федерации; ГБУЗ «Морозовская детская городская клиническая больница Департамента здравоохранения города Москвы»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Medical Academy of Continuous Professional Education, Health Ministry of Russian Federation; Morozovskaya Children's City Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр детской гематологии, онкологии и иммунологии имени Дмитрия Рогачева» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Dmitry Rogachev National Medical Research Center for Pediatric Hematology, Oncology and Immunology, Health Ministry of Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>20</day><month>10</month><year>2023</year></pub-date><volume>17</volume><issue>5</issue><fpage>565</fpage><lpage>583</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Mostovoi A.V., Karpova A.L., Mezhinsky S.S., Volodin N.N., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Мостовой А.В., Карпова А.Л., Межинский С.С., Володин Н.Н.</copyright-holder><copyright-holder xml:lang="en">Mostovoi A.V., Karpova A.L., Mezhinsky S.S., Volodin N.N.</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.gynecology.su/jour/article/view/1802">https://www.gynecology.su/jour/article/view/1802</self-uri><abstract><sec><title>Introduction</title><p>Introduction. We proposed a hypothesis that prognosis in preterm infants may be affected by concentration of the administered surfactant preparation able to determine its viscosity and, therefore, even distribution throughout the lungs.</p></sec><sec><title>Aim</title><p>Aim: to assess an effect of poractant alfa (PA) administered at low (40 mg/mL) vs. standard (80 mg/mL) concentration without changing recommended dosage (200 mg/kg) on outcomes of preterm infants at gestational age (GA) under 32 weeks receiving various respiratory support.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. A prospective randomized controlled multicenter study was conducted. A total of 325 infants under 32 weeks of GA in five perinatal centers were randomized. The inclusion criteria were met by 264 patients: required respiratory therapy, had indications for surfactant administration at birth/within the first 30 minutes of life, and informed parental consent. Patients were excluded if they had no indications for surfactant preparations at the age of the first 30 minutes of life, had chromosomal and genetic abnormalities, congenital malformations, early neonatal sepsis, or gross deviations from the study protocol. Two groups were formed and compared: Low concentration (LC) group – PA concentration was 40 mg/mL (n = 111) and Standard concentration (SC) group (control) – PA concentration was 80 mg/mL (n = 153). Additionally, we compared two subgroups with surfactant preparation administered by minimally invasive methods in spontaneously breathing infants (using LISA – a less invasive method of introducing surfactant through a thin catheter or endotracheal tube): subgroup LC – PA concentration was 40 mg/mL (n = 27) and subgroup SC (control) – PA concentration was 80 mg/mL (n = 34).</p></sec><sec><title>Results</title><p>Results. It was found that development of pulmonary hemorrhages in LC and SC groups was significantly less common in infants who received PA at concentration of 40 mg/mL vs. 80 mg/mL: 3.6 (4/111) % vs. 13.1 (20/153) % (p = 0.008). While comparing subgroups with minimally invasive PA administration (LISA or endotracheal tube), we found that treatment with 40 mg/mL significantly decreased total respiratory therapy duration– 142 [70.0; 219.0] hours vs. 250 [141.0; 690.0] hours (p = 0.008), incidents of bronchopulmonary dysplasia – 4.0 (1/27) % vs. 29.0 (10/34) % (p = 0.009), length of stay in neonatal intensive care unit and hospital – 8.0 [7.5; 13.0] days vs. 14.0 [8.0; 33.75] days (p = 0.014) and 38.0 [26.5; 48.5] days vs. 50.5 [36.25; 62.5] days (p = 0.014), respectively.</p></sec><sec><title>Conclusion</title><p>Conclusion. PA administered at concentration of 40 mg/mL without changing the recommended dose did not aggravate nursing of preterm infants at GA under 32 weeks. Minimally invasive PA administration at concentration of 40 mg/mL, lowered risk of bronchopulmonary dysplasia, and when used in infants on mechanical lung ventilation, it lowered a risk of pulmonary hemorrhage. All the discussed findings require to be further assessed in large prospective, multicenter, randomized studies in large patient cohort. </p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Введение</title><p>Введение. Нами была выдвинута гипотеза, что на прогноз у недоношенных детей может повлиять концентрация вводимого сурфактанта, от которой будет зависеть вязкость субстанции, а следовательно, равномерность распределения в легких.</p></sec><sec><title>Цель</title><p>Цель: оценить влияние низкой концентрации (40 мг/мл) введенного порактанта альфа (ПА) по сравнению со стандартной концентрацией (80 мг/мл) без изменения рекомендуемой дозы (200 мг/кг) на исходы у недоношенных детей с гестационным возрастом (ГВ) менее 32 недель. </p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проведено проспективное рандомизированное контролируемое многоцентровое исследование в 5 перинатальных центрах, в которое было включено 325 новорожденных со сроком гестации менее 32 недель. Критериям включения соответствовали 264 ребенка: у них была необходимость проведения респираторной терапии, показания к назначению сурфактанта при рождении в течение первых 30 минут жизни и информированное согласие родителей. Из исследования исключались пациенты, у которых не было показаний к назначению сурфактанта в первые 30 минут жизни, с хромосомными и генетическими аномалиями, врожденными пороками развития, ранним неонатальным сепсисом или грубыми отклонениями от протокола исследования. Сравнивали 2 группы: группу «Низкой концентрации (НК)» – концентрация ПА составила 40 мг/мл (n = 111) и контрольную группу «Стандартной концентрации (СК)» – концентрация ПА составила 80 мг/мл (n = 153). Кроме того, мы дополнительно провели сравнение в двух подгруппах с введением сурфактанта малоинвазивными методами у спонтанно дышащих младенцев (с использованием метода LISA – менее инвазивного метода введения сурфактанта через тонкий катетер или эндотрахеальную трубку): подгруппа НК – концентрация ПА составила 40 мг/мл (n = 27) и подгруппа СК (контроль) – концентрация ПА составила 80 мг/мл (n = 34).</p></sec><sec><title>Результаты</title><p>Результаты. В группах НК и СК развитие легочных кровотечений значимо реже наблюдалось у детей, получавших ПА в концентрации 40 мг/мл по сравнению с 80 мг/мл: 3,6 (4/111) % vs. 13,1 (20/153) % (р = 0,008). При сравнении подгрупп с минимально инвазивным введением ПА (LISA или эндотрахеальная трубка) мы обнаружили после лечения 40 мг/мл статистически значимое уменьшение продолжительности общей респираторной терапии – 142 [70,0; 219,0] часа vs. 250 [141,0; 690,0] часов (р = 0,008), частоту случаев бронхолегочной дисплазии – 4,0 (1/27) % vs. 29,0 (10/34) % (р = 0,009), длительность пребывания в отделении реанимации новорожденных и в стационаре – 8,0 [7,5; 13,0] дней vs. 14,0 [8,0; 33,75] дней (р = 0,014) и 38,0 [26,5; 48,5] дней vs. 50,5 [36,25; 62,5] дней (р = 0,014) соответственно.</p></sec><sec><title>Заключение</title><p>Заключение. Применение ПА в концентрации 40 мг/мл без изменения рекомендуемой дозы не ухудшило результаты выхаживания недоношенных детей с ГВ менее 32 недель. При малоинвазивном введении ПА в концентрации 40 мг/мл снижался риск бронхолегочной дисплазии, а при применении у детей раннего возраста, находившихся на искусственной вентиляции легких, снижался риск легочного кровотечения. Все обсуждаемые результаты требуют дальнейших крупных проспективных многоцентровых рандомизированных исследований с большим количеством пациентов.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>легочное кровотечение</kwd><kwd>бронхолегочная дисплазия</kwd><kwd>LISA</kwd><kwd>распределение сурфактанта</kwd><kwd>вязкость сурфактанта</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pulmonary hemorrhages</kwd><kwd>bronchopulmonary dysplasia</kwd><kwd>LISA</kwd><kwd>surfactant distribution</kwd><kwd>surfactant viscosity</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы заявляют об отсутствии финансовой поддержки. Авторы выражают благодарность директору по статистике ООО «Техдепартамент», отдел статистики медицины, к.c.н. Е.В. Щепкиной за статистическую обработку данных. Сердечно благодарим за помощь в сборе материала врачей всех перинатальных центров и лично Наилю Харитонову, Ольгу Авдей, Марину Ковалёву, Анастасию Петрову, Максима Кондратьева, Инессу Мебелову, Максима Ткачука, Ольгу Сапун за организацию работы на локациях. Также благодарим Петра Ермолинского из лаборатории биомедицинской фотоники физического факультета МГУ им. М.В. Ломоносова и Леонида Карпова (студента международного факультета ФГАОУ ВО РНИМУ им. Н.И. Пирогова Минздрава России) за помощь в подготовке исследования. Авторы выражают особую глубокую благодарность доктору Борису Крамеру, д.м.н., главному научному сотруднику, главному медицинскому директору Neuroplast BV (Маастрихт, Нидерланды), клиническому профессору Университета Западной Австралии, за научные консультации при подготовке материала к публикации и за его высокую оценку качества нашего исследования.</funding-statement><funding-statement xml:lang="en">The authors declare no funding. The authors express gratitude to the director of statistics of LLC “Techdepartament”, Department Statistics for Medicine", PhD, E.V. Shchepkina for statistical data processing. We warmly thank for the help in collecting the material the doctors at all perinatal centers and personally Nailya Kharitonova, Olga Avdei, Marina Kovaleva, Anastasia Petrova, Maksim Kondrat’ev, Inessa Mebelova, Maksim Tkachuk, Olga Sapun for organizing work in locations. Special thanks to Petr Ermolinsky, Laboratory of Biomedical Photonics, Faculty of Physics, Lomonosov Moscow State University, and Leonid Karpov (student at the International Faculty of Pirogov Russian National Research Medical University) for help in preparing the study. The authors express deep gratitude to Dr Sci Med Boris Kramer, Chief Scientific Officer, Chief Medical Director of Neuroplast BV (Maastricht, the Netherlands), Clinical Professor University of Western Australia, for scientific advice in preparing the manuscript for publication and highly assessed quality of our study.</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">Speer C.P., Robertson B., Curstedt T. et al. Randomized European multicenter trial of surfactant replacement therapy for severe neonatal respiratory distress syndrome: single versus multiple doses of Curosurf. Pediatrics. 1992;89(1):13–20.</mixed-citation><mixed-citation xml:lang="en">Speer C.P., Robertson B., Curstedt T. et al. Randomized European multicenter trial of surfactant replacement therapy for severe neonatal respiratory distress syndrome: single versus multiple doses of Curosurf. Pediatrics. 1992;89(1):13–20.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Ramanathan R., Rasmussen M.R., Gerstmann D.R. et al. A randomized, multicenter masked comparison trial of poractant alfa (Curosurf) versus beractant (Survanta) in the treatment of respiratory distress syndrome in preterm infants. Am J Perinatol. 2004;21(3):109–19. https://doi.org/10.1055/s-2004-823779.</mixed-citation><mixed-citation xml:lang="en">Ramanathan R., Rasmussen M.R., Gerstmann D.R. et al. A randomized, multicenter masked comparison trial of poractant alfa (Curosurf) versus beractant (Survanta) in the treatment of respiratory distress syndrome in preterm infants. Am J Perinatol. 2004;21(3):109–19. https://doi.org/10.1055/s-2004-823779.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Cassidy K., Bull J., Glucksberg M. et al. A rat lung model of instilled liquid transport in the pulmonary airways. J Appl Physiol (1985). 2001;90(5):1955–67. https://doi.org/10.1152/jappl.2001.90.5.1955.</mixed-citation><mixed-citation xml:lang="en">Cassidy K., Bull J., Glucksberg M. et al. A rat lung model of instilled liquid transport in the pulmonary airways. J Appl Physiol (1985). 2001;90(5):1955–67. https://doi.org/10.1152/jappl.2001.90.5.1955.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Anderson J., Molthen R., Dawson C. et al. Effect of ventilation rate on instilled surfactant distribution in the pulmonary airways of rats. J Appl Physiol (1985). 2004;97(1):45–56. https://doi.org/10.1152/japplphysiol.00609.2003.</mixed-citation><mixed-citation xml:lang="en">Anderson J., Molthen R., Dawson C. et al. Effect of ventilation rate on instilled surfactant distribution in the pulmonary airways of rats. J Appl Physiol (1985). 2004;97(1):45–56. https://doi.org/10.1152/japplphysiol.00609.2003.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">King D., Wang Z., Kendig J. et al. Concentration-dependent, temperature-dependent non-Newtonian viscosity of lung surfactant dispersions. Chem Phys Lipids. 2001;112(1):11–9. https://doi.org/10.1016/s0009-3084(01)00150-5.</mixed-citation><mixed-citation xml:lang="en">King D., Wang Z., Kendig J. et al. Concentration-dependent, temperature-dependent non-Newtonian viscosity of lung surfactant dispersions. Chem Phys Lipids. 2001;112(1):11–9. https://doi.org/10.1016/s0009-3084(01)00150-5.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Espinosa F.F., Kamm R.D. Bolus dispersal through the lungs in surfactant replacement therapy. J Appl Physiol (1985). 1999;86(1):391–410. https://doi.org/10.1152/jappl.1999.86.1.391.</mixed-citation><mixed-citation xml:lang="en">Espinosa F.F., Kamm R.D. Bolus dispersal through the lungs in surfactant replacement therapy. J Appl Physiol (1985). 1999;86(1):391–410. https://doi.org/10.1152/jappl.1999.86.1.391.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Zheng Y., Anderson J.C., Suresh V., Grotberg J.B. Effect of gravity on liquid plug transport through an airway bifurcation model. J Biomech Eng. 2005;127(5):798–806. https://doi.org/10.1115/1.1992529.</mixed-citation><mixed-citation xml:lang="en">Zheng Y., Anderson J.C., Suresh V., Grotberg J.B. Effect of gravity on liquid plug transport through an airway bifurcation model. J Biomech Eng. 2005;127(5):798–806. https://doi.org/10.1115/1.1992529.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Zheng Y., Fujioka H., Grotberg J.C., Grotberg J.B. Effects of inertia and gravity on liquid plug splitting at a bifurcation. J Biomech Eng. 2006;128(5):707–16. https://doi.org/10.1115/1.2246235.</mixed-citation><mixed-citation xml:lang="en">Zheng Y., Fujioka H., Grotberg J.C., Grotberg J.B. Effects of inertia and gravity on liquid plug splitting at a bifurcation. J Biomech Eng. 2006;128(5):707–16. https://doi.org/10.1115/1.2246235.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Copploe A., Vatani M., Choi J.W., Tavana H. A three-dimensional model of human lung airway tree to study therapeutics delivery in the lungs. Ann Biomed Eng. 2019;47(6):1435–45. https://doi.org/10.1007/s10439-019-02242-z.</mixed-citation><mixed-citation xml:lang="en">Copploe A., Vatani M., Choi J.W., Tavana H. A three-dimensional model of human lung airway tree to study therapeutics delivery in the lungs. Ann Biomed Eng. 2019;47(6):1435–45. https://doi.org/10.1007/s10439-019-02242-z.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Halpern D., Jensen O.E., Grotberg J.B. A theoretical study of surfactant and liquid delivery into the lung. J Appl Physiol (1985). 1998;85(1):333–52. https://doi.org/10.1152/jappl.1998.85.1.333.</mixed-citation><mixed-citation xml:lang="en">Halpern D., Jensen O.E., Grotberg J.B. A theoretical study of surfactant and liquid delivery into the lung. J Appl Physiol (1985). 1998;85(1):333–52. https://doi.org/10.1152/jappl.1998.85.1.333.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Gilliard N., Richman P.M., Merritt T.A., Spragg R.G. Effect of volume and dose on the pulmonary distribution of exogenous surfactant administered to normal rabbits or to rabbits with oleic acid lung injury. Am Rev Respir Dis. 1990;141(3):743–7. https://doi.org/10.1164/ajrccm/141.3.743.</mixed-citation><mixed-citation xml:lang="en">Gilliard N., Richman P.M., Merritt T.A., Spragg R.G. Effect of volume and dose on the pulmonary distribution of exogenous surfactant administered to normal rabbits or to rabbits with oleic acid lung injury. Am Rev Respir Dis. 1990;141(3):743–7. https://doi.org/10.1164/ajrccm/141.3.743.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Ведение новорожденных с респираторным дистресс-синдромом. Клинические рекомендации. Под ред. академика РАН В.В. Володина. М., 2016. 48 с. Режим доступа: https://www.volgmed.ru/uploads/files/2018-4/82939vedenie_novorozhdennyh_s_respiratornym_distress-sindromom_2016_http_www_raspm_ru.pdf. [Дата обращения: 15.09.2023].</mixed-citation><mixed-citation xml:lang="en">Management of newborns with respiratory distress syndrome. Clinical guidelines. Ed. Academician of RAS N.N. Volodin. [Vedenie novorozhdennyh s respiratornym distress-sindromom. Klinicheskie rekomendacii. Pod red. akademika RAN V.V. Volodina]. Moscow, 2016. 48 p. (In Russ.). Available at: https://www.volgmed.ru/uploads/files/2018-4/82939vedenie_novorozhdennyh_s_respiratornym_distress-sindromom_2016_http_www_raspm_ru.pdf. [Accessed: 15.09.2023].</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Robertson B., Curstedt T., Johansson J. et al. Structural and functional characterization of porcine surfactant isolated by liquid gel chromatography. In: Basic Research on Lung Surfactant. Progress in Respiration Research. Eds. P. von Wichert, B. Muller. Basel: Karger, 1990. Vol. 25. 237–46.</mixed-citation><mixed-citation xml:lang="en">Robertson B., Curstedt T., Johansson J. et al. Structural and functional characterization of porcine surfactant isolated by liquid gel chromatography. In: Basic Research on Lung Surfactant. Progress in Respiration Research. Eds. P. von Wichert, B. Muller. Basel: Karger, 1990. Vol. 25. 237–46.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Мостовой А.В., Жакота Д.А., Карпова А.Л. и др. Анатомические параметры трахеи у недоношенных новорожденных с массой тела менее 1000 г для эффективного и безопасного малоинвазивного введения сурфактанта. Российский вестник перинатологии и педиатрии. 2021;66(5):60–6. https://doi.org/10.21508/1027-4065-2021-66-5-60-66.</mixed-citation><mixed-citation xml:lang="en">Mostovoi A.V., Zhakota D.A., Karpova A.L. et al. Anatomical tracheal parameters in premature neonates with birth body weight less than 1000 g for effective and safe administration of surfactant. [Anatomicheskie parametry trahei u nedonoshennyh novorozhdennyh s massoj tela menee 1000 g dlya effektivnogo i bezopasnogo maloinvazivnogo vvedeniya surfaktanta]. Rossijskij vestnik perinatologii i pediatrii. 2021;66:(5):60–6. (In Russ.). https://doi.org/10.21508/1027-4065-202166-5-60-66.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Reynolds P., Bustani P., Darby C. et al. Less-invasive surfactant administration for neonatal respiratory distress syndrome: a consensus guideline. Neonatology. 2021;118(5):586–92. https://doi.org/10.1159/000518396.</mixed-citation><mixed-citation xml:lang="en">Reynolds P., Bustani P., Darby C. et al. Less-invasive surfactant administration for neonatal respiratory distress syndrome: a consensus guideline. Neonatology. 2021;118(5):586–92. https://doi.org/10.1159/000518396.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Swartz D., Klein W., Row S. et al. Comparison of dynamic viscosities of lung surfactant drugs. Hot Topics in Neonatology, 2017. Available at: https://infasurf.com/about/the-science/viscosity. [Accessed: 15.09.2023].</mixed-citation><mixed-citation xml:lang="en">Swartz D., Klein W., Row S. et al. Comparison of dynamic viscosities of lung surfactant drugs. Hot Topics in Neonatology, 2017. Available at: https://infasurf.com/about/the-science/viscosity. [Accessed: 15.09.2023].</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">King D.M., Wang Z., Palmer H.J. et al. Bulk shear viscosities of endogenous and exogenous lung surfactants. Am J Physiol Lung Cell Mol Physiol. 2002;282(2):L277–84. https://doi.org/10.1152/ajplung.00199.2001.</mixed-citation><mixed-citation xml:lang="en">King D.M., Wang Z., Palmer H.J. et al. Bulk shear viscosities of endogenous and exogenous lung surfactants. Am J Physiol Lung Cell Mol Physiol. 2002;282(2):L277–84. https://doi.org/10.1152/ajplung.00199.2001.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Garland J., Buck R., Weinberg M. Pulmonary hemorrhage risk in infants with a clinically diagnosed patent ductus arteriosus: a retrospective cohort study. Pediatrics. 1994;94(5):719–23.</mixed-citation><mixed-citation xml:lang="en">Garland J., Buck R., Weinberg M. Pulmonary hemorrhage risk in infants with a clinically diagnosed patent ductus arteriosus: a retrospective cohort study. Pediatrics. 1994;94(5):719–23.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Lewis M.J., McKeever P.K., Rutty G.N. Patent ductus arteriosus as a natural cause of pulmonary hemorrhage in infants: a medicolegal dilemma. Am J Forensic Med Pathol. 2004;25(3):200–4. https://doi.org/10.1097/01.paf.0000136444.09294.75.</mixed-citation><mixed-citation xml:lang="en">Lewis M.J., McKeever P.K., Rutty G.N. Patent ductus arteriosus as a natural cause of pulmonary hemorrhage in infants: a medicolegal dilemma. Am J Forensic Med Pathol. 2004;25(3):200–4. https://doi.org/10.1097/01.paf.0000136444.09294.75.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Kappico J.M., Siassi B., Ebrahimi M., Ramanathan R. Pulmonary venous congestion and pulmonary hemorrhage in an extremely premature neonate with a large patent ductus arteriosus and closed patent foramen ovale: a case report. J Investig Med High Impact Case Rep. 2020;8:2324709620982430. https://doi.org/10.1177/2324709620982430.</mixed-citation><mixed-citation xml:lang="en">Kappico J.M., Siassi B., Ebrahimi M., Ramanathan R. Pulmonary venous congestion and pulmonary hemorrhage in an extremely premature neonate with a large patent ductus arteriosus and closed patent foramen ovale: a case report. J Investig Med High Impact Case Rep. 2020;8:2324709620982430. https://doi.org/10.1177/2324709620982430.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Hagadorn J.I., Shaffer M.L., Tolia V.N., Greenberg R.G. Covariation of changing patent ductus arteriosus management and preterm infant outcomes in pediatrix neonatal intensive care units. J Perinatol. 2021;41(10):2526–31. https://doi.org/10.1038/s41372-021-01170-y.</mixed-citation><mixed-citation xml:lang="en">Hagadorn J.I., Shaffer M.L., Tolia V.N., Greenberg R.G. Covariation of changing patent ductus arteriosus management and preterm infant outcomes in pediatrix neonatal intensive care units. J Perinatol. 2021;41(10):2526–31. https://doi.org/10.1038/s41372-021-01170-y.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Ngo S., Profit J., Gould J.B., Lee H.C. Trends in patent ductus arteriosus diagnosis and management for very low birth weight infants. Pediatrics. 2017;139(4):e20162390. https://doi.org/10.1542/peds.2016-2390.</mixed-citation><mixed-citation xml:lang="en">Ngo S., Profit J., Gould J.B., Lee H.C. Trends in patent ductus arteriosus diagnosis and management for very low birth weight infants. Pediatrics. 2017;139(4):e20162390. https://doi.org/10.1542/peds.2016-2390.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Hagadorn J.I., Brownell E.A., Trzaski J.M. et al. Trends and variation in management and outcomes of very low-birth-weight infants with patent ductus arteriosus. Pediatr Res. 2016;80(6):785–92. https://doi.org/10.1038/pr.2016.166.</mixed-citation><mixed-citation xml:lang="en">Hagadorn J.I., Brownell E.A., Trzaski J.M. et al. Trends and variation in management and outcomes of very low-birth-weight infants with patent ductus arteriosus. Pediatr Res. 2016;80(6):785–92. https://doi.org/10.1038/pr.2016.166.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Harkin P., Marttila R., Pokka T. et al. Survival analysis of a cohort of extremely preterm infants born in Finland during 2005-2013. J Matern Fetal Neonatal Med. 2021;34(15):2506–12. https://doi.org/10.1080/14767058.2019.1668925.</mixed-citation><mixed-citation xml:lang="en">Harkin P., Marttila R., Pokka T. et al. Survival analysis of a cohort of extremely preterm infants born in Finland during 2005-2013. J Matern Fetal Neonatal Med. 2021;34(15):2506–12. https://doi.org/10.1080/14767058.2019.1668925.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Kong X., Xu F., Wu R. et al. Neonatal mortality and morbidity among infants between 24 to 31 complete weeks: a multicenter survey in China from 2013 to 2014. BMC Pediatr. 2016;16(1):174. https://doi.org/10.1186/s12887-016-0716-5.</mixed-citation><mixed-citation xml:lang="en">Kong X., Xu F., Wu R. et al. Neonatal mortality and morbidity among infants between 24 to 31 complete weeks: a multicenter survey in China from 2013 to 2014. BMC Pediatr. 2016;16(1):174. https://doi.org/10.1186/s12887-016-0716-5.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Hines D., Modi N., Lee S.K. et al.; International Network for Evaluating Outcomes (iNeo) of Neonates. Scoping review shows wide variation in the definitions of bronchopulmonary dysplasia in preterm infants and calls for a consensus. Acta Paediatr. 2017;106(3):366–74. https://doi.org/10.1111/apa.13672.</mixed-citation><mixed-citation xml:lang="en">Hines D., Modi N., Lee S.K. et al.; International Network for Evaluating Outcomes (iNeo) of Neonates. Scoping review shows wide variation in the definitions of bronchopulmonary dysplasia in preterm infants and calls for a consensus. Acta Paediatr. 2017;106(3):366–74. https://doi.org/10.1111/apa.13672.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Zheng Y., Fujioka H., Bian S. et al. Liquid plug propagation in flexible microchannels: a small airway model. Phys Fluids (1994). 2009;21(7):71903. https://doi.org/10.1063/1.3183777.</mixed-citation><mixed-citation xml:lang="en">Zheng Y., Fujioka H., Bian S. et al. Liquid plug propagation in flexible microchannels: a small airway model. Phys Fluids (1994). 2009;21(7):71903. https://doi.org/10.1063/1.3183777.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Мостовой А.В., Карпова А.Л., Межинский С.С., Володин Н.Н. Состояние проблемы организации оказания респираторной помощи новорожденным детям в России сегодня: результаты опроса врачей-неонатологов и анестезиологов-реаниматологов. Педиатрия. Журнал имени Г.Н. Сперанского. 2021;100(5):209–19. https://doi.org/10.24110/0031-403X2021-100-5-209-219.</mixed-citation><mixed-citation xml:lang="en">Mostovoi A.V., Karpova A.L., Mezhinsky S.S., Volodin N.N. State of the problem of organization of respiratory care for newborn children in today's Russia: survey results of neonatologists and intensive care specialists. [Sostoyanie problemy organizacii okazaniya respiratornoj pomoshchi novorozhdennym detyam v Rossii segodnya: rezul'taty oprosa vrachejneonatologov i anesteziologov-reanimatologov]. Pediatriya. Zhurnal imeni G.N. Speranskogo. 2021;100(5):209–19. (In Russ.). https://doi.org/10.24110/0031-403X-2021-100-5-209-219.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">De Luca D., Minucci A., Gentile L., Capoluongo E.D. Surfactant inadvertent loss using feeding catheters or endotracheal tubes. Am J Perinatol. 2014;31(3):209–12. https://doi.org/10.1055/s-00331345262.</mixed-citation><mixed-citation xml:lang="en">De Luca D., Minucci A., Gentile L., Capoluongo E.D. Surfactant inadvertent loss using feeding catheters or endotracheal tubes. Am J Perinatol. 2014;31(3):209–12. https://doi.org/10.1055/s-00331345262.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru"></mixed-citation><mixed-citation xml:lang="en"></mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
