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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 Pediatric Surgery</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Pediatric Surgery</journal-title><trans-title-group xml:lang="ru"><trans-title>Детская хирургия</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1560-9510</issn><issn publication-format="electronic">2412-0677</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">856</article-id><article-id pub-id-type="doi">10.17816/ps856</article-id><article-id pub-id-type="edn">IGZGOM</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original Study Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные исследования</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 model for predicting the aesthetics of postoperative scar in pediatric surgery: an original study</article-title><trans-title-group xml:lang="ru"><trans-title>Предиктивная модель прогноза эстетичности послеоперационного рубца в детской хирургии: оригинальное исследование</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-6832-3318</contrib-id><contrib-id contrib-id-type="spin">6057-3390</contrib-id><name-alternatives><name xml:lang="en"><surname>Savelev</surname><given-names>Dmitrii S.</given-names></name><name xml:lang="ru"><surname>Савельев</surname><given-names>Дмитрий Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD</p></bio><email>saveljevds@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9281-6872</contrib-id><contrib-id contrib-id-type="spin">2458-6382</contrib-id><name-alternatives><name xml:lang="en"><surname>Gorodkov</surname><given-names>Sergey Y.</given-names></name><name xml:lang="ru"><surname>Городков</surname><given-names>Сергей Юрьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine), Assistant Professor</p></bio><bio xml:lang="ru"><p>канд. мед. наук, доцент</p></bio><email>gorodcov@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6074-9780</contrib-id><contrib-id contrib-id-type="spin">4172-3482</contrib-id><name-alternatives><name xml:lang="en"><surname>Goremykin</surname><given-names>Igor V.</given-names></name><name xml:lang="ru"><surname>Горемыкин</surname><given-names>Игорь Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор</p></bio><email>goremykine@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Saratov State Medical University named after V.I. Razumovsky</institution></aff><aff><institution xml:lang="ru">Саратовский государственный медицинский университет имени В.И. Разумовского</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-08-14" publication-format="electronic"><day>14</day><month>08</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-08-26" publication-format="electronic"><day>26</day><month>08</month><year>2025</year></pub-date><volume>29</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>250</fpage><lpage>261</lpage><history><date date-type="received" iso-8601-date="2025-03-15"><day>15</day><month>03</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-08-05"><day>05</day><month>08</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Эко-Вектор</copyright-statement><copyright-year>2025</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="2026-08-26"/></permissions><self-uri xlink:href="https://jps-nmp.ru/jour/article/view/856">https://jps-nmp.ru/jour/article/view/856</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> A postoperative scar is a visible and inevitable result of surgical intervention. A scar on the child’s body can worsen the quality of his/her life as it can be manifested with physical ailment (pain, itching, skin flaking), disharmony in psychological and age adaptation as well as with the feeling of dissatisfaction with one’s own body. The basic question which we had been put before our research was: “Is it possible to predict the aesthetic result of postoperative scars in children before surgery, taking into account previously known predictors?”</p> <p><bold>AIM:</bold> To create a prognostic model for predicting aesthetic outcomes in postoperative scars in pediatric surgery using machine learning modalities.</p> <p><bold>METHODS: </bold>219 children with postoperative scars on their body were enrolled in the study in 2022–2024. The decision tree modality in the SPSS Statistic 23 program was chosen as a forecasting algorithm. Models were built using CHAID, Exhaustive CHAID and CRT. The desired prognosis criterion was based on the final score in the SPASS scale questionnaire sheet. Predictors were: child’s age, scar location, scar length, and color gradient. The color gradient was determined in Photoshop CS6 digital graphics editor based on photographs in RGB color coordinate system.</p> <p><bold>RESULTS:</bold> A workable predictive model using CHAID modality has been built. The model included 32 nodes, 25 of which were terminal nodes. AUC parameter in the ROC curve was 0.924. Asymptotic confidential interval (95%) was in the range of 0.890–0.922. The value of performed “cross-validation” was acceptable. Predictive modeling was done using nine terminal nodes with high values of “index” and “response” parameters. The length of the postoperative scar is a priority factor in determining its aesthetic perception.</p> <p><bold>CONCLUSION:</bold> In this trial, a predictive model of postoperative scar aesthetics in pediatric surgery based on the decision tree modality has been developed. This is the first attempt to predict outcomes of this kind in pediatric surgery. The obtained results will be useful for practical application in pediatric surgery when planning surgical interventions.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование. </bold>Послеоперационный рубец ― видимый и неизбежный исход хирургического лечения. Наличие рубца на теле ребёнка наряду с физическими неудобствами (боль, зуд, шелушение) способно привести к снижению уровня качества жизни в целом, что проявляется дисгармонией в психологической и возрастной адаптации, чувством неудовлетворённости собственным телом.</p> <p>Результатом нашей работы был ответ на исследовательский вопрос, возможно ли до операции прогнозировать эстетичность послеоперационного рубца у ребёнка с учётом заранее известных предикторов.</p> <p><bold>Цель исследования</bold> ― создать предиктивную модель прогноза эстетичности послеоперационного рубца в детской хирургии с применением методов машинного обучения.</p> <p><bold>Методы.</bold> В исследовании приняли участие 219 детей, которые имели послеоперационный рубец на своём теле. Период проведения работы ― 2022–2024 годы. В качестве алгоритма прогнозирования был выбран метод деревьев решений (decision tree) в программе SPSS Statistic 23. Построение моделей проводили по методам CHAID и его модификации (Исчерпывающий CHAID), а также CRT. В качестве искомого критерия прогноза опирались на балл итогового вопроса листа опросника для ребёнка шкалы SPASS. Предикторами выступали следующие параметры: возраст ребёнка, локализация рубца, длина рубца, цветовой градиент. Цветовой градиент определяли в цифровом графическом редакторе Photoshop CS6 на основе фотоснимков в системе цветовых координат RGB.</p> <p><bold>Результаты.</bold> Построена работоспособная предиктивная прогностическая модель по методу CHAID. Модель включала в себя 32 узла, 25 из которых были терминальными. При построении ROC-кривой, параметр AUC составил 0,924. Асимптотический доверительный интервал (95%) находился в пределах 0,890–0,922. Значение проведённой кросс-валидации было приемлемым. Прогнозное моделирование проведено на основе девяти терминальных узлов с высокими значениями параметров «индекс» и «отклик». Приоритетным фактором влияния на эстетическое восприятие послеоперационного рубца является его длина.</p> <p><bold>Заключение.</bold> В нашем исследовании разработана предиктивная прогностическая модель эстетичности послеоперационного рубца в детской хирургии на основе деревьев решений. Это первая попытка прогнозирования параметров подобного рода в педиатрической практике. Результаты исследования будут полезны для применения на практике в детской хирургии при планировании оперативных вмешательств.</p></trans-abstract><kwd-group xml:lang="en"><kwd>postoperative scar</kwd><kwd>machine learning</kwd><kwd>predictive modeling</kwd><kwd>predictive model</kwd><kwd>pediatric surgery</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>послеоперационный рубец</kwd><kwd>машинное обучение</kwd><kwd>прогнозное моделирование</kwd><kwd>предиктивная модель</kwd><kwd>детская хирургия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Ferguson MW, Whitby DJ, Shah M, et al. Scar formation: the spectral nature of fetal and adult wound repair. Plast Reconstr Surg. 1996;97(4):854–860. doi: 10.1097/00006534-199604000-00029</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Huang TR, Chen SG, Chen JC, Liu SC. 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