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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">10.21886/2308-6424-2023-11-1-52-58</article-id><article-id custom-type="elpub" pub-id-type="custom">urovest-669</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>Опыт применения новой малоинвазивной методики оперативного лечения варикоцеле</article-title><trans-title-group xml:lang="en"><trans-title>Novel patented minimally invasive technique for surgical treatment of varicocele: technique overview</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1050-6198</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кызласов</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kyzlasov</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павел Сергеевич Кызласов — доктор медицинских наук, профессор; профессор кафедры урологии и андрологии Медико-биологического университета инноваций и непрерывного образования;</p><p>руководитель Центра урологии и андрологии, заведующий отделением урологии,</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Pavel S. Kyzlasov — M.D., Dr.Sc.(Med); Prof., Dept. of Urology and Andrology, Medical and Biological University of Innovation and Continuing Education;</p><p>Head, Urology and Andrology Centre,</p><p>Moscow</p></bio><email xlink:type="simple">dr.kyzlasov@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/0000-0001-7749-0560</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абуев</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Abuev</surname><given-names>G. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гебек Газихмаевич Абуев — аспирант кафедры урологии и андрологии Медико-биологического университета инноваций и непрерывного образования;врач-уролог отделения урологии Центра урологии и андрологии,</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Gebek G. Abuev — M.D.; Postgrad. Student, Dept. of Urology and Andrology, Medical and Biological University of Innovation and Continuing Education;</p><p>Urologist, Urology Division, Urology and Andrology Centre,</p><p>Moscow</p></bio><email xlink:type="simple">abuev.urology@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/0000-0002-2422-7942</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мустафаев</surname><given-names>А. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Mustafaev</surname><given-names>A. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Али Тельман оглы Мустафаев — ассистент кафедры урологии и андрологии Медико-биологического университета инноваций и непрерывного образования;врач-уролог отделения урологии Центра урологии и андрологии,</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Ali T. Mustafayev — M.D.; Assist.Prof., Dept. of Urology and Andrology, Medical and Biological University of Innovation and Continuing Education;</p><p>Urologist, Urology Division, Urology and Andrology Centre,</p><p>Moscow</p></bio><email xlink:type="simple">dr.mustafayevat@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/0000-0003-2304-7285</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боков</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bokov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Иванович Боков — кандидат медицинских наук; врач-уролог отделения урологии Центра урологии и андрологии,</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Aleksej I. Bokov — M.D., Cand.Sc.(Med); Urologist, Urology Division, Urology and Andrology Centre,</p><p>Moscow</p></bio><email xlink:type="simple">dr.bokov@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Государственный научный центр Российской Федерации — Федеральный медицинский биофизический центр им. А. И. Бурназяна</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Center Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>03</day><month>04</month><year>2023</year></pub-date><volume>11</volume><issue>1</issue><fpage>52</fpage><lpage>58</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кызласов П.С., Абуев Г.Г., Мустафаев А.Т., Боков А.И., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Кызласов П.С., Абуев Г.Г., Мустафаев А.Т., Боков А.И.</copyright-holder><copyright-holder xml:lang="en">Kyzlasov P.S., Abuev G.G., Mustafaev A.T., Bokov A.I.</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/669">https://www.urovest.ru/jour/article/view/669</self-uri><abstract><sec><title>Введение</title><p>Введение. Для хирургического лечения варикоцеле предложено множество методов, большинство из которых имеют историческое значение. В настоящее время единого мнения в пользу той или иной методики хирургического лечения варикоцеле не существует, что обусловливает актуальность проведения дальнейших исследований.</p></sec><sec><title>Цель исследования</title><p>Цель исследования. Оценить эффективность нового малоинвазивного метода хирургического лечения варикоцеле, производимого по авторской методике.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование включено 763 пациента с варикоцеле в возрасте 18 – 46 лет (средний возраст — 26,3 года), которым выполнена субингвинальная перевязка яичковой вены по авторской методике. Критерии включения: варикоцеле I – III степени, возраст ≥ 18 лет, патоспермией по данным спермограммы и расширенными венами гроздевидного сплетения по данным УЗИ, ретроградным кровотоком, по данным допплерометрии сосудов семенного канатика. Критерии исключения: ранее оперированные пациенты с рецидивным варикоцеле, пациенты с синдромом Мея-Тернера и двусторонним варикоцеле. Обследование включало 8 контрольных точек: до оперативного вмешательства и через 3, 6, 12, 24, 36, 48, 60 месяцев после операции. На контрольных точках проводили физикальное исследование органов мошонки с проведением пробы Вальсальвы, спермограмму, УЗИ органов мошонки с допплерометрией.</p></sec><sec><title>Результаты</title><p>Результаты. Среднее время операции составило 15 минут (10 – 30 минут). Все пациенты выписаны на 1 – 2 сутки после операции. При наблюдении за пациентами в течение 60 месяцев после операции на основании клинического, лабораторно-инструментального исследований (спермограмма, УЗ-контроль) данных о гипотрофии яичка, гидроцеле выявлено не было, у пациентов отмечено улучшение сперматогенеза / либо отсутствие прогрессирования патоспермии в течение наблюдения. У 1 пациента в раннем послеоперационном периоде выявлена гематома мошонки. У 11 пациентов за период наблюдения выявлен рецидив варикоцеле (1,4%).</p></sec><sec><title>Заключение</title><p>Заключение. Методика является эффективной, легко воспроизводимой, характеризуется низкой частотой рецидива и послеоперационных осложнений. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Many methods have been proposed for the surgical treatment of varicocele, the most of which is of historical significance. At present, there is no consensus in favor of one or another method of surgical treatment of varicocele, which determines the relevance of further research.</p></sec><sec><title>Objective</title><p>Objective. To evaluate the effectiveness of a new minimally invasive method of surgical treatment of varicocele using the author's method.</p></sec><sec><title>Materials &amp; methods</title><p>Materials &amp; methods. The study enrolled 763 patients aged 18 – 46 years (mean age 26.3 years) with varicocele who underwent testicular vein subinguinal ligation according to the author's technique. Inclusion criteria: varicocele grades 1 – 3, aged ≥ 18 years, semen abnormalities according to semen analysis and dilated spermatic cord veins according to ultrasound, retrograde blood flow according to Doppler ultrasound. Exclusion criteria: previously operated patients with recurrent varicocele, patients with May-Thurner syndrome and bilateral varicocele. The examination included eight control points: before surgery and 3, 6, 12, 24, 36, 48, and 60 months after surgery. Physical scrotal examination with Valsalva test, semen analysis, and Dopper scrotal ultrasound were performed at the control dates.</p></sec><sec><title>Results</title><p>Results. The average surgery time was 15 min (10 – 30 min). All patients were discharged 1 to 2 days after surgery. At follow-up for 60 months, patients showed improvement in spermatogenesis / or no progression of semen abnormalities during follow-up after surgery based on clinical, laboratory and instrumental studies (semen analysis, ultrasound / Doppler ultrasound); no data on testicular hypotrophy, hydrocele were revealed. A scrotal haematoma was detected in one patient in the early postoperative period. Recurrent varicocele (1.4%) was detected in 11 patients during the follow-up period.</p></sec><sec><title>Conclusion</title><p>Conclusion. The technique is effective, easily reproducible, characterised by a low rate of recurrence and postoperative complications. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>варикоцеле</kwd><kwd>бесплодие</kwd><kwd>операция</kwd><kwd>подпаховая перевязка</kwd><kwd>тестикулярная вена</kwd><kwd>тестикулярная артерия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>varicocele</kwd><kwd>infertility</kwd><kwd>surgery</kwd><kwd>subinguinal ligation</kwd><kwd>testicular vein</kwd><kwd>testicular artery</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">Урология: национальное руководство. Под ред. Н.А. Лопаткина. М.: ГЭОТАР-Медиа; 2011. ISBN: 978-5-9704- 1990-8.</mixed-citation><mixed-citation xml:lang="en">Lopatkin N.A., ed. Urologija: nacional'noe rukovodstvo. Moscow: GJeOTAR-Media; 2011. (In Russian). ISBN: 978- 5-9704-1990-8.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Hotchkiss RS. Infertility in the male. In: Campbell MF, Harrison JH, eds. Urology. Philadelphia, USA: Saunders; 1970.</mixed-citation><mixed-citation xml:lang="en">Hotchkiss RS. Infertility in the male. In: Campbell MF, Harrison JH, eds. Urology. Philadelphia, USA: Saunders; 1970.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Петроченков ЕВ, Ростовская В.В. История хирургии варикоцеле. Российский вестник детской хирургии, анестезиологии и реаниматологии. 2018;8(4):88-96. DOI: 10.17816/psaic483</mixed-citation><mixed-citation xml:lang="en">Petrochenkov E.V., Rostovskaya V.V. History of varicocele surgery. Russian Journal of Pediatric Surgery, Anesthesia and Intensive Care. 2018;8(4):88-96. (In Russian). DOI: 10.17816/psaic483</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Nagler HM, Luntz RK, Martinis FG. Varicocele. In: Lipshultz LI, Howards SS, eds. Infertility in the male. St. Louis, MO: Mosby Year Book; 1997.</mixed-citation><mixed-citation xml:lang="en">Nagler HM, Luntz RK, Martinis FG. Varicocele. In: Lipshultz LI, Howards SS, eds. Infertility in the male. St. Louis, MO: Mosby Year Book; 1997.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Kamischke A, Nieschlag E. Varicocele treatment in the light of evidence-based andrology. Hum Reprod Update. 2001;7(1):65-9. DOI: 10.1093/humupd/7.1.65</mixed-citation><mixed-citation xml:lang="en">Kamischke A, Nieschlag E. Varicocele treatment in the light of evidence-based andrology. Hum Reprod Update. 2001;7(1):65-9. DOI: 10.1093/humupd/7.1.65</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Agarwal A, Deepinder F, Cocuzza M, Agarwal R, Short RA, Sabanegh E, Marmar JL. Efficacy of varicocelectomy in improving semen parameters: new meta-analytical approach. Urology. 2007;70(3):532-8. DOI: 10.1016/j.urology.2007.04.011</mixed-citation><mixed-citation xml:lang="en">Agarwal A, Deepinder F, Cocuzza M, Agarwal R, Short RA, Sabanegh E, Marmar JL. Efficacy of varicocelectomy in improving semen parameters: new meta-analytical approach. Urology. 2007;70(3):532-8. DOI: 10.1016/j.urology.2007.04.011</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Kibar Y, Seckin B, Erduran D. The effects of subinguinal varicocelectomy on Kruger morphology and semen parameters. J Urol. 2002;168(3):1071-4. DOI: 10.1097/01.ju.0000026956.70079.b6</mixed-citation><mixed-citation xml:lang="en">Kibar Y, Seckin B, Erduran D. The effects of subinguinal varicocelectomy on Kruger morphology and semen parameters. J Urol. 2002;168(3):1071-4. DOI: 10.1097/01.ju.0000026956.70079.b6</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Rotker K, Sigman M. Recurrent varicocele. Asian J Androl. 2016;18(2):229-33. DOI: 10.4103/1008-682X.171578</mixed-citation><mixed-citation xml:lang="en">Rotker K, Sigman M. Recurrent varicocele. Asian J Androl. 2016;18(2):229-33. DOI: 10.4103/1008-682X.171578</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Бешлиев Д.А. Варикоцеле. Классификация, диагностика, лечение. Трудный пациент. 2007;5(12-13):9-13. eLIBRARY ID: 16861526; EDN: OEZMWH</mixed-citation><mixed-citation xml:lang="en">Beshliev D.A. Varikocele. Klassifikaciya, diagnostika, lechenie. Difficult Patient. 2007;5(12-13):9-13. (In Russian). eLIBRARY ID: 16861526; EDN: OEZMWH</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Çoban S, Keleş I, Biyik I, Güzelsoy M, Türkoğlu AR, Özgünay T, Ocak N. Is there any relationship between mean platelet volume and varicocele? Andrologia. 2015;47(1):37-41. DOI: 10.1111/and.12220</mixed-citation><mixed-citation xml:lang="en">Çoban S, Keleş I, Biyik I, Güzelsoy M, Türkoğlu AR, Özgünay T, Ocak N. Is there any relationship between mean platelet volume and varicocele? Andrologia. 2015;47(1):37-41. DOI: 10.1111/and.12220</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Chen XF, Zhou LX, Liu YD, Ping P, Chen YH, Cao M, Sun J. [Comparative analysis of three different surgical approaches to varicocelectomy]. Zhonghua Nan Ke Xue. 2009;15(5):413-6. (In Chinese). PMID: 19514552</mixed-citation><mixed-citation xml:lang="en">Chen XF, Zhou LX, Liu YD, Ping P, Chen YH, Cao M, Sun J. [Comparative analysis of three different surgical approaches to varicocelectomy]. Zhonghua Nan Ke Xue. 2009;15(5):413-6. (In Chinese). PMID: 19514552</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Ivanissevich O. Left varicocele due to reflux; experience with 4,470 operative cases in forty-two years. J Int Coll Surg. 1960;34:742-55. PMID: 13718224</mixed-citation><mixed-citation xml:lang="en">Ivanissevich O. Left varicocele due to reflux; experience with 4,470 operative cases in forty-two years. J Int Coll Surg. 1960;34:742-55. PMID: 13718224</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Palomo A. Radical cure of varicocele by a new technique; preliminary report. J Urol. 1949;61(3):604-7. DOI: 10.1016/s0022-5347(17)69113-4</mixed-citation><mixed-citation xml:lang="en">Palomo A. Radical cure of varicocele by a new technique; preliminary report. J Urol. 1949;61(3):604-7. DOI: 10.1016/s0022-5347(17)69113-4</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Патент № 2756019 C1 Российская Федерация, МПК A61B 17/00. Малоинвазивный метод хирургического лечения варикоцеле: № 2020133185: заявл. 08.10.2020: опубл. 24.09.2021 / П.С. Кызласов, А.А. Кажера, А.Т. Мустафаев. URL: https://patenton.ru/patent/RU2756019C1</mixed-citation><mixed-citation xml:lang="en">Patent № 2756019 C1 Rossijskaja Federacija, MPK A61B 17/00. Maloinvazivnyj metod hirurgicheskogo lechenija varicocele: № 2020133185: zajavl. 08.10.2020: opubl. 24.09.2021 / P.S. Kyzlasov, A.A. Kazhera, A.T. Mustafaev. (In Russian). URL: https://patenton.ru/patent/RU2756019C1</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Marmar JL. The evolution and refinements of varicocele surgery. Asian J Androl. 2016;18(2):171-8. DOI: 10.4103/1008-682X.170866</mixed-citation><mixed-citation xml:lang="en">Marmar JL. The evolution and refinements of varicocele surgery. Asian J Androl. 2016;18(2):171-8. DOI: 10.4103/1008-682X.170866</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Артюхин А.А. Фундаментальные основы сосудистой андрологии: учеб. пособие для студ. высш. учеб. Заведений. М.: Издательский центр «Академия»; 2008.</mixed-citation><mixed-citation xml:lang="en">Artjuhin A.A. Fundamental'nye osnovy sosudistoj andrologii: ucheb. posobie dlja stud. vyssh. ucheb. zavedenij. Moscow: Izdatel'skij centr «Akademija», 2008. (In Russian).</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Jarisch A. Ueber die Schlagadern des menschlichen Hodens. Berichte des naturwissenschaftlichen-medizinischen Verein Innsbruck. 1889;18:32-79.</mixed-citation><mixed-citation xml:lang="en">Jarisch A. Ueber die Schlagadern des menschlichen Hodens. Berichte des naturwissenschaftlichen-medizinischen Verein Innsbruck. 1889;18:32-79.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Ebert CJ. Die männlichen Geschlechtsorgane. Handbuch der Anatomie des Menschen. Jena, Fischer: 1904.</mixed-citation><mixed-citation xml:lang="en">Ebert CJ. Die männlichen Geschlechtsorgane. Handbuch der Anatomie des Menschen. Jena, Fischer: 1904.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Гильбо И.С. Артерии мужской половой железы человека. Арх. Анатомии, гистологии и эмбриологии. 1957;34(1):106-114.</mixed-citation><mixed-citation xml:lang="en">Gil'bo I.S. Arterii muzhskoj polovoj zhelezy cheloveka. Arh. Anatomii, gistologii i jembriologii. 1957;34(1):106-114. (In Russian).</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Pellanda CH. La circulation artérielle du testicule. Int. Wschr. F. Anat. Physiol. 1903;20:240-266.</mixed-citation><mixed-citation xml:lang="en">Pellanda CH. La circulation artérielle du testicule. Int. Wschr. F. Anat. Physiol. 1903;20:240-266.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Артюхин А.А. Анатомо-физиологические и клинические аспекты особенностей артериальной системы яичка. Российский медико-биологический вестник имени академика И. П. Павлова. 2004;1-2:41-53. eLIBRARY ID: 9319056; EDN: HVYDWH</mixed-citation><mixed-citation xml:lang="en">Artjuhin A.A. Anatomophysiological and clinical aspects of the testical arterial system. I.P. Pavlov russian medical biological herald. 2004;1-2:41-53. (In Russian). eLIBRARY ID: 9319056; EDN: HVYDWH</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>
