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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">urovest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник урологии</journal-title><trans-title-group xml:lang="en"><trans-title>Urology Herald</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2308-6424</issn><publisher><publisher-name>Rostov State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21886/2308-6424-2026-14-4-51-57</article-id><article-id custom-type="elpub" pub-id-type="custom">urovest-1258</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Сравнение предикторной роли объёма и размера конкремента в достижении статуса stone-free при перкутанной нефролитотрипсии</article-title><trans-title-group xml:lang="en"><trans-title>Stone volume versus stone size as predictors of stone-free status after percutaneous nephrolithotomy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4617-9611</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сулейманов</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Suleimanov</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мурад Магомедович Сулейманов — канд. мед. наук  </p><p>Санкт-Петербург </p></bio><bio xml:lang="en"><p>Murad M. Suleimanov — Cand.Sc.(Med) </p><p>Saint-Petersburg </p></bio><email xlink:type="simple">doc.suleimanov@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/0000-0001-6085-5594</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сытник</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sytnik</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Анатольевич Сытник </p><p>Санкт-Петербург </p></bio><bio xml:lang="en"><p>Dmitry A. Sytnik </p><p>Saint-Petersburg </p></bio><email xlink:type="simple">doc.dmitriysytnik@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/0000-0002-7250-6786</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алхазишвили</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alkhazishvili</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Владимирович Алхазишвили — канд. мед. наук </p><p>Санкт-Петербург </p></bio><bio xml:lang="en"><p>Alexander V. Alkhazishvili — Cand.Sc.(Med) </p><p>Saint-Petersburg </p></bio><email xlink:type="simple">alkhazishvilialex@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/0009-0007-8608-0409</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дадашов</surname><given-names>М. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Dadashov</surname><given-names>M. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мурад Логман оглы Дадашов  </p><p>Санкт-Петербург </p></bio><bio xml:lang="en"><p>Murad L. Dadashov </p><p>Saint-Petersburg </p></bio><email xlink:type="simple">doc.mdadashov@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Клиническая больница Святителя Луки</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Luke Saint-Petersburg State Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Северо-Западный государственный медицинский университет им. И.И. Мечникова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mechnikov North-Western State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>22</day><month>08</month><year>2026</year></pub-date><volume>14</volume><issue>4</issue><fpage>51</fpage><lpage>57</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сулейманов М.М., Сытник Д.А., Алхазишвили А.В., Дадашов М.L., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Сулейманов М.М., Сытник Д.А., Алхазишвили А.В., Дадашов М.</copyright-holder><copyright-holder xml:lang="en">Suleimanov M.M., Sytnik D.A., Alkhazishvili A.V., Dadashov M.L.</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.urovest.ru/jour/article/view/1258">https://www.urovest.ru/jour/article/view/1258</self-uri><abstract><p>Введение. В настоящее время главным показателем, определяющим каменную нагрузку, является его наибольший линейный размер, который определяется на основе бесконтрастной компьютерной томографии. Однако исходя из логических соображений, линейный размер, отражая конфигурацию камня в одной плоскости, должен уступать объёму камня в точности представления каменной нагрузки, поскольку объём учитывает трёхмерную структуру конкремента.Цель исследования. Сравнить прогностическую ценность объёма и наибольшего диаметра конкремента в достижении stone-free статуса после перкутанной нефролитотрипсии.Материал и методы. В данное ретроспективное исследование включены данные 388 пациентов с нефролитиазом, которым выполнили стандартную перкутанную нефролитотрипсию. Для определения объёма конкремента применяли метод автоматической литометрии по данным КТ при помощи программного обеспечения Vitrea ver. 4.1.52 с использованием функции измерения объёма сегментированной области. Размер конкремента определяли по наибольшему диаметру. В послеоперационном периоде оценивали показатель stone-free rate (SFR). Наличие статуса stone-free оценивали с помощью бесконтрастной КТ через трое суток после операции. Достижением показателя SFR считали отсутствие резидуальных фрагментов конкремента более 3 мм при проведении КТ. Для сравнения предикторной ценности объёма и размера конкремента был выполнен ROC-анализ с расчётом AUC и подтверждением статистической значимости по тесту DeLong. Была проведена многофакторная логистическая регрессия для подтверждения независимой предикторной роли объёма и размера конкремента. Кроме того, использовались U-тест Mann ‒ Whitney для количественных переменных и критерий χ² для категориальных. Различия считались достоверными при p &lt; 0,05.Результаты. Многофакторная логистическая регрессия продемонстрировала, что, с учётом различных факторов, как объём, так и диаметр камня оказались независимыми статистически значимыми предикторами степени полной элиминации конкремента. AUC для модели, основанной на объёме камня была выше, чем у модели, основанной на размере (0,80 и 0,75 соответственно). Субанализ продемонстрировал, что объём обладает более высокой предикторной способностью при одиночных некоралловидных конкрементах, в то время как при множественных и коралловидных камнях разница статистически недостоверна.Заключение. Дооперационное измерение объёма конкремента почки у пациентов с одиночным крупным некоралловидным камнем наиболее точно отражает истинный масштаб конкремента, поскольку, в отличие от наибольшего линейного размера, учитывает трёхмерную конфигурацию камня. При этом для множественных, а также коралловидных конкрементов не было выявлено статистически значимой разницы в способности прогнозировать исход перкутанной нефролитотрипсии.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. At present, the principal parameter used to determine stone burden is the maximum linear diameter, as assessed by non-contrast computed tomography. From a conceptual standpoint, however, linear size reflects the calculus in only one plane and should be less accurate than stone volume in representing the true burden, because volume captures the three-dimensional structure of the stone. Objective. To compare the prognostic value of stone volume and maximum stone diameter in predicting achievement of a stone-free status after percutaneous nephrolithotomy (PCNL).Materials &amp; method. This retrospective study included data from 388 patients with nephrolithiasis who underwent standard PCNL. Stone volume was calculated using automated lithometry based on CT data with Vitrea software v. 4.1.52, employing the segmented region volume measurement function. Stone size was determined by the maximum diameter. Postoperatively, stone-free rate (SFR) was assessed. Stone-free status was evaluated by non-contrast CT performed 3 days after surgery. SFR was defined as the absence of residual stone fragments larger than 3 mm on CT. To compare the predictive value of stone volume and stone size, ROC analysis was performed with calculation of the AUC, and statistical significance was confirmed using the DeLong test. Multivariable logistic regression was used to verify the independent predictive role of stone volume and size. In addition, the Mann–Whitney U test was applied for quantitative variables and the chi-square test for categorical variables. Differences were considered statistically significant at p &lt; 0.05.Results. Multivariable logistic regression demonstrated that, after adjustment for all relevant factors, both stone volume and stone diameter were independent statistically significant predictors of complete stone clearance. The AUC for the volume-based model was higher than that for the size-based model (0.80 vs 0.75). Subgroup analysis showed that volume had greater predictive ability for solitary non-staghorn stones, whereas no statistically significant difference was observed for multiple and staghorn calculi.Conclusion. Preoperative measurement of renal stone volume in patients with a single large non-staghorn calculus more accurately reflects the true stone burden, since, unlike maximum linear diameter, it accounts for the threedimensional configuration of the stone. For multiple and staghorn calculi, however, no statistically significant difference was found in the ability to predict the outcome of PCNL.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>мочекаменная болезнь</kwd><kwd>перкутанная нефролитотрипсия</kwd><kwd>степень полной элиминации камня</kwd><kwd>объём конкремента</kwd></kwd-group><kwd-group xml:lang="en"><kwd>urolithiasis</kwd><kwd>percutaneous nephrolitotripsy</kwd><kwd>stone-free rate</kwd><kwd>stone volume</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">Skolarikos A., Geraghty R., Somani B., Tailly T., Jung H., Neisius A., Petřík A., Kamphuis G.M., Davis N., Bezuidenhout C., Lardas M., Gambaro G., Sayer J.A., Lombardo R., Tzelves L. European Association of Urology Guidelines on the Diagnosis and Treatment of Urolithiasis. Eur Urol. 2025;88(1):64-75. 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