<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Cancer Urology</journal-id><journal-title-group><journal-title xml:lang="en">Cancer Urology</journal-title><trans-title-group xml:lang="ru"><trans-title>Онкоурология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-9776</issn><issn publication-format="electronic">1996-1812</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1455</article-id><article-id pub-id-type="doi">10.17650/1726-9776-2021-17-3-64-77</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DIAGNOSIS AND TREATMENT OF URINARY SYSTEM TUMORS. PROSTATE CANCER</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДИАГНОСТИКА И ЛЕЧЕНИЕ ОПУХОЛЕЙ МОЧЕПОЛОВОЙ СИСТЕМЫ. Рак предстательной железы</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Technologies to reduce radiation toxicity in prostate cancer patients: spacers - a simple and effective solution</article-title><trans-title-group xml:lang="ru"><trans-title>Технологии снижения лучевой токсичности у больных раком предстательной железы: спейсеры - простое и эффективное решение</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1873-1293</contrib-id><name-alternatives><name xml:lang="en"><surname>Novikov</surname><given-names>R. V.</given-names></name><name xml:lang="ru"><surname>Новиков</surname><given-names>Р. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy, Saint-Petersburg 197758; 7—9 Universitetskaya Naberezhnaya, Saint-Petersburg 199034</p></bio><bio xml:lang="ru"><p>Роман Владимирович Новиков</p><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><email>novikov-spb@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7185-1967</contrib-id><name-alternatives><name xml:lang="en"><surname>Novikov</surname><given-names>S. N.</given-names></name><name xml:lang="ru"><surname>Новиков</surname><given-names>С. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy, Saint-Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Petrov National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ Национальный медицинский исследовательский центр онкологии им. Н.Н. Петрова Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Saint-Petersburg State University</institution></aff><aff><institution xml:lang="ru">ФГБУ Национальный медицинский исследовательский центр онкологии им. Н.Н. Петрова Минздрава России</institution></aff></aff-alternatives><aff id="aff3"><institution>N.N. Petrov National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><pub-date date-type="pub" iso-8601-date="2021-11-11" publication-format="electronic"><day>11</day><month>11</month><year>2021</year></pub-date><volume>17</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>64</fpage><lpage>77</lpage><history><date date-type="received" iso-8601-date="2021-06-25"><day>25</day><month>06</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-09-14"><day>14</day><month>09</month><year>2021</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://oncourology.abvpress.ru/oncur/article/view/1455">https://oncourology.abvpress.ru/oncur/article/view/1455</self-uri><abstract xml:lang="en"><p>The basic principles of the treatment of prostate cancer patients have underwent significant revisions in recent years. Modern radiotherapy techniques, which have demonstrated high efficacy and safety in long-term randomized trials, are beginning to take a leading position in the treatment of prostate cancer in an overwhelming number of clinical scenarios (National Comprehensive Cancer Network, 2021). Despite the obvious successes of radiation oncology, a number of important problems remain unresolved, first of all - the need to reduce the rates of radiation complications. The topographical anatomy of the prostate gland determines the main profiles of post-radiation damage: rectal and genitourinary radiation toxicity. The previous five years have been marked by a significant intensification of research work abroad aimed at clinical testing of a number of biopolymer compositions and products for use as spacers between irradiated structures and normal tissues. The experience has made it possible for the first time to consider the possibility of using spacers in radiotherapy treatment of prostate cancer in the modern recommendations of the European Association of Urology (2021). The analysis of the national literature shows a complete lack of publications on the possibilities of optimizing the radiation treatment of prostate cancer through the use of specers. The purpose of this work was the need to highlight this important and perspective clinical problem.</p></abstract><trans-abstract xml:lang="ru"><p>Основные принципы лечения больных раком предстательной железы в последние годы были подвергнуты существенному пересмотру. Современные методики лучевой терапии, продемонстрировавшие высокие эффективность и безопасность в рамках длительных рандомизированных исследований, начинают занимать лидирующие позиции в лечении рака предстательной железы в подавляющем числе клинических сценариев (рекомендации Национальной сети по борьбе с раком (NCCN) 2021). Несмотря на очевидные успехи радиационной онкологии, остается нерешенным целый ряд важных проблем, в первую очередь - необходимость снижения показателей лучевых осложнений. Топографическая анатомия предстательной железы определяет основные профили характерных постлучевых повреждений: прямокишечная и мочеполовая лучевая токсичность. Предшествующие 5 лет ознаменованы значительной интенсификацией исследовательской работы за рубежом, направленной на клиническую апробацию ряда биополимерных композиций и изделий по использованию в качестве механических разделителей или спейсеров между облучаемыми структурами и здоровыми тканями. Накопленный опыт позволил впервые рассматривать возможность их применения при лучевом лечении рака предстательной железы в рамках последних рекомендаций Европейской ассоциации урологов (2021). Анализ данных отечественной литературы свидетельствует о полном отсутствии публикаций, посвященных возможностям оптимизации лечения рака предстательной железы посредством спейсеров. Цель настоящей работы - освещение данной важной и перспективной клинической проблемы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>prostate cancer</kwd><kwd>radiation therapy</kwd><kwd>spacer</kwd><kwd>radiation proctitis</kwd><kwd>erectile dysfunction</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак предстательной железы</kwd><kwd>лучевая терапия</kwd><kwd>спейсер</kwd><kwd>лучевой проктит</kwd><kwd>эректильная дисфункция</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Tamponi M., Gabriele D., Maggio A. et al. Prostate cancer dose-response, fractionation sensitivity and repopulation parameters evaluation from 25 international radiotherapy outcome data sets. Br J Radiol 2.019;92.(1098):20180823. DOI: 10.1259/bjr.20180823.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Obrador E., Salvador R., Villaescusa J.I. et al. Radioprotection and radiomitigation: from the bench to clinical practice. Biomedicines 2020;8(11):461. DOI: 10.3390/biomedicines8110461.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Hossain S., Xia P., Huang K. et al. Dose gradient near target-normal structure interface for nonisocentric Cyberknife and isocentric intensity-modulated body radiotherapy for prostate cancer. Int J Radiat Oncol Biol Phys 2010;78(1):58—63. DOI: 10.1016/j.ijrobp.2009.07.1752.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Struik G.M., Godart J., ferduijn G.M. et al. A randomized controlled trial testing a hyaluronic acid spacer injection for skin toxicity reduction of brachy-therapy accelerated partial breast irradiation (APBI): a study protocol. Trials 2018;19(1):689. DOI: 10.1186/s13063-018-3035-3.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Murakami N., Nakamura S., Kashihara T. et al. Hyaluronic acid gel injection in rectovaginal septum reduced incidence of rectal bleeding in brachytherapy for gynecological malignancies. Brachytherapy 2.020;19(2):154—61. DOI: 10.1016/j.brachy.2019.11.004.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Kawaguchi H., Demizu Y., Mukumoto N. et al. Efficacy of spacers in radiation therapy for locally advanced pancreatic cancer: a planning study. Anticancer Res 2021;41(1):503—8. DOI: 10.21873/anticanres.14801.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Achard V., Ris F., Rouzaud M. et al. Sexual organ-sparing with hydrogel spacer injections for rectal cancer radiotherapy: a feasibility pilot study. Br J Radiol 2021;22:20200931. DOI: 10.1259/bjr.20200931.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Sugarbaker P.H. Intrapelvic prosthesis to prevent injury of the small intestine with high dosage pelvic irradiation. Surg Gynecol Obstet 1983;157(3):269—71.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Dhrig M., Steenblock U., Heberer M., Harder F. Prevention of radiation injuries to the small intestine. Surg Gynecol Obstet 1984;159(2):162—3.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Niwa K., Morita K., Kanazawa H., Yokoi M. Usefulness of a radiolucent spacer in radiation therapy for cancer of the tongue. Gan No Rinsho 1984;30(15):1861—5.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Sezeur A., Abbou C., Rey P. et al. New surgical procedure for the protection of the small intestine before postoperative pelvic irradiation. Ann Chir 1990;44(5):352—5.</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Sezeur A., Martella L., Abbou C. et al. Small intestine protection from radiation by means of a removable adapted prosthesis. Am J Surg 1999;178(1):22—5. DOI: 10.1016/s0002-9610(99)0112-9.</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Devereux D.F. Protection from radiation-associated small bowel injury with the aid of an absorbable mesh. Semin Surg Oncol 1986;2(1):17—23. DOI: 10.1002/ssu.2980020103.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Rodier J.F., Janser J.C., Rodier D. et al. Prevention of radiation injuries of the small intestine with pelvic exclusion by polyglactin 910 mesh. Contribution to gynecologic and digestive cancer surgery. J Chir (Paris) 1989;126(2):73—80.</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Trimbos J.B., Snijders-Keilholz T., Peters A.A. et al. Feasibility of the application of a resorbable polyglycolic-acid mesh (Dexon mesh) to prevent complications of radiotherapy following gynaecological surgery. Eur J Surg 1991;157(4):281—4.</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Prada PJ., Fernndez J., Martinez A.A. et al. Transperineal injection of hyaluronic acid in anterior perirectal fat to decrease rectal toxicity from radiation delivered with intensity modulated brachytherapy or EBRT for prostate cancer patients. Int J Radiat Oncol Biol Phys 2007;69(1):95—102. DOI: 10.1016/j.ijrobp.2007.02.034.</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Morancy T.J., Winkfield K.M., Karasiewicz C.A. et al. Use of a blood-patch technique to reduce rectal dose during cesium-131 prostate brachytherapy. Int J Radiat Oncol 2008;72:S331—2. DOI: 10.1016/j.ijrobp.2008.06.1127.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Noyes W.R., Hosford C.C., Schultz S.E. Human collagen injections to reduce rectal dose during radiotherapy. Int J Radiat Oncol Biol Phys 2012;82(5):1918—22. DOI: 10.1016/j.ijrobp.2011.02.034.</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Weber D.C., Zilli T., Vallee J.P. et al. Intensity modulated proton and photon therapy for early prostate cancer with or without transperineal injection of a polyethylen glycol spacer: a treatment planning comparison study. Int J Radiat Oncol Biol Phys 2012;84(3):e311 —8. DOI: 10.1016/j.ijrobp.2012.03.028.</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Basu S., Manir K.S., Basu A., Ghosh K. Rectal separation using hydroxypropyl methylcellulose in intracavitary brachytherapy of cervical cancer: an innovative approach. J Contemp Brachytherapy 2016;8(5):399—403. DOI: 10.5114/jcb.2016.62951.</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Strom T.J., Wilder R.B., Fernandez D.C. et al. A dosimetric study of polyethylene glycol hydrogel in 200 prostate cancer patients treated with high-dose rate brachytherapy ± intensity modulated radiation therapy. Radiother Oncol 2014;111(1):126—31. DOI: 10.1016/j.radonc.2014.02.011.</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Pinkawa M., Corral N.E., Caffaro M. et al. Application of a spacer gel to optimize three-dimensional conformal and intensity modulated radiotherapy for prostate cancer. Radiother Oncol 2011;100(3):436—41. DOI: 10.1016/j.radonc.2011.09.005.</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Vaggers S., Rai B.P., Chedgy E.C.P. et al. Polyethylene glycol-based hydrogel rectal spacers for prostate brachytherapy: a systematic review with a focus on technique. World J Urol 2021;39(6):1769—80. DOI: 10.1007/s00345-020-03414-6.</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Karsh L.I., Gross E.T., Pieczonka C.M. et al. Absorbable hydrogel spacer use in prostate radiotherapy: a comprehensive review of phase 3 clinical trial published data. Urology 2018;115(1):39—44. DOI: 10.1016/j.urology.2017.11.016.</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Hamstra D.A., Mariados N., Sylvester J. et al. Sexual quality of life following prostate intensity modulated radiation therapy (IMRT) with a rectal/prostate spacer: secondary analysis of a phase 3 trial. Pract Radiat Oncol 2018;8(1):e7—15. DOI: 10.1016/j.prro.2017.07.008.</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Mok G., Benz E., Vallee J.P. et al. Optimization of radiation therapy techniques for prostate cancer with prostate-rectum spacers: a systematic review. Int J Radiat Oncol Biol Phys 2014;90(2):278-88. DOI: 10.1016/j.ijrobp.2014.06.044.</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Melchert C., Gez E., Bohlen G. et al. Interstitial biodegradable balloon for reduced rectal dose during prostate radiotherapy: results of a virtual planning investigation based on the pre- and post-implant imaging data of an international multicenter study. Radiother Oncol 2013;106(2):210—4. DOI: 10.1016/j.radonc.2013.01.007.</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Kouloulias V., Kalogeropoulos T., Platoni K. et al. Feasibility and radiation induced toxicity regarding the first application of transperineal implementation of biocompatible balloon for high dose radiotherapy in patients with prostate carcinoma. Radiat Oncol 2013;8:82. DOI: 10.1186/1748-717X-8-82.</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>Hatiboglu G., Pinkawa M., Vallee J.P. et al. Application technique: placement of a prostate-rectum spacer in men undergoing prostate radiation therapy. BJU Int 2012;110(11):E647—52. DOI: 10.1111/j.1464-410X.2012.11373.x.</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>Mhller A.C., Mischinger J., Klotz T. et al. Interdisciplinary consensus statement on indication and application of a hydrogel spacer for prostate radiotherapy based on experience in more than 250 patients. Radiol Oncol 2016;50(3):329—36. DOI: 10.1515/raon-2016-0036.</mixed-citation></ref><ref id="B31"><label>31.</label><mixed-citation>Afkhami Ardekani M., Ghaffari H. Optimization of prostate brachytherapy techniques with polyethylene glycol-based hydrogel spacers: a systematic review. Brachytherapy 2020;19(1):13—23. DOI: 10.1016/j.brachy.2019.08.009.</mixed-citation></ref><ref id="B32"><label>32.</label><mixed-citation>Nehlsen A.D., Sindhu K.K., Moshier E. et al. The impact of a rectal hydrogel spacer on dosimetric and toxicity outcomes among patients undergoing combination therapy with external beam radiotherapy and low-dose-rate brachy-therapy. Brachytherapy 2021;20(2):296—301. DOI: 10.1016/j.brachy.2020.09.018.</mixed-citation></ref><ref id="B33"><label>33.</label><mixed-citation>Thompson A.B., Hamstra D.A. Rectal spacer usage with proton radiation therapy for prostate cancer. Int J Radiat Oncol Biol Phys 2020;108(3):644—8. DOI: 10.1016/j.ijrobp.2020.05.034.</mixed-citation></ref><ref id="B34"><label>34.</label><mixed-citation>Alongi F., Rigo M., Figlia V. et al. Rectal spacer hydrogel in 1.5T MR-guided and daily adapted SBRT for prostate cancer: dosimetric analysis and preliminary patient-reported outcomes. Br J Radiol 2021;94(1117):20200848. DOI: 10.1259/bjr.20200848.</mixed-citation></ref><ref id="B35"><label>35.</label><citation-alternatives><mixed-citation xml:lang="en">Gafton G., Novikov R.V., Novikov S.N. et al. Brachytherapy of prostate cancer with a high dose rate source in monotherapy: an analysis of the results of a five-year follow-up. Voprosy onkologii = Oncology Issues 2020;66(4):404—12. (In Russ.). DOI.org/10.37469/0507-3758-2020-66-4-404-412.</mixed-citation><mixed-citation xml:lang="ru">Гафтон Г., Новиков Р.В., Новиков С.Н. и др. Брахитерапия рака предстательной железы источником высокой мощности дозы в режиме монотерапии: анализ результатов пятилетнего наблюдения. Вопросы онкологии 2020;66(4):404—12. DOI.org/10.37469/0507-3758-2020-66-4-404-412.</mixed-citation></citation-alternatives></ref><ref id="B36"><label>36.</label><citation-alternatives><mixed-citation xml:lang="en">Novikov S.N., Kanaev S.V., Novikov R.V. et al. Five-year results of concomitant radiotherapy for high-risk prostate cancer. Voprosy onkologii = Oncology Issues 2020;66(6):685—94. (In Russ.). DOI: 10.37469/0507-3758-2020-66-6-685-694.</mixed-citation><mixed-citation xml:lang="ru">Новиков С.Н., Канаев С.В., Новиков Р.В. и др. Пятилетние результаты сочетанной лучевой терапии рака предстательной железы высокого риска. Вопросы онкологии 2020;66(6):685—94. DOI: 10.37469/0507-3758-2020-66-6-685-694.</mixed-citation></citation-alternatives></ref><ref id="B37"><label>37.</label><citation-alternatives><mixed-citation xml:lang="en">Kanaev S.V., Novikov S.N., Melnik Yu.S. et al. Effect of a biodegradable spacer on dose distribution during stereotactic radiation therapy for prostate cancer. Proceedings of the 3rd Russian Oncological Research and Educational Forum “White Nights, 2017”, Saint-Petersburg, 23—25 June 2017. Saint-Petersburg, 2017. P. 42. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Канаев С.В., Новиков С.Н., Мельник Ю.С. и др. Влияние биодеградирующего спейсера на распределение дозы при проведении стереотаксической лучевой терапии рака предстательной железы. Материалы III Российского онкологического научно-образовательного форума с международным участием «Белые Ночи, 2017», Санкт-Петербург, 23—25 июня 2017 г. СПб., 2017. С. 42.</mixed-citation></citation-alternatives></ref><ref id="B38"><label>38.</label><mixed-citation>Villers A., McNeal J.E., Freiha F.S. et al. Invasion of Denonvilliers’ fascia in radical prostatectomy specimens. J Urol 1993;149(4):793—8. DOI: 10.1016/s0022-5347(17)36209-2.</mixed-citation></ref><ref id="B39"><label>39.</label><mixed-citation>Lehrich B.M., Moyses H.M., Ravera J. et al. Five-year results of postprostatectomy patients administered a hydrogel rectal spacer implant in conjunction with dose escalated external beam radiation therapy. J Radiat Oncol 2019;8(1):31—8. DOI: 10.1007/s13566-018-0369-0.</mixed-citation></ref><ref id="B40"><label>40.</label><mixed-citation>Scher N., Bauduceau O., Bollet M. et al. Stereotactic prostate focal reirradiation therapy for local recurrence: preliminary results of Hartmann Oncology Radiotherapy Group. BJR Open 2019;1(1):20180027. DOI: 10.1259/bjro.20180027.</mixed-citation></ref><ref id="B41"><label>41.</label><mixed-citation>Ozyigit G., Hurmuz P., Akinci D. et al. Hyaluronic acid spacer in focal prostate reirradiation: a single centre experience. Cancer Radiother 2020;24(8):805—11. DOI: 10.1016/j.canrad.2020.03.009.</mixed-citation></ref><ref id="B42"><label>42.</label><mixed-citation>Lehrich B.M., Moyses H.M., Kawakubo A. et al. Long-term toxicity of high dose rate brachytherapy in prostate carcinoma patients with inflammatory bowel disease. Clin Oncol (R Coll Radiol) 2019;31(6):399-400. DOI: 10.1016/j.clon.2019.01.013.</mixed-citation></ref><ref id="B43"><label>43.</label><mixed-citation>Tang Q., Zhao F., Yu X. et al. The role of radioprotective spacers in clinical practice: a review. Quant Imaging Med Surg 2018;8(5):514—24. DOI: 10.21037/qims.2018.06.06.</mixed-citation></ref><ref id="B44"><label>44.</label><citation-alternatives><mixed-citation xml:lang="en">Novikov S.N., Kanaev S.V., Novikov R.V. et al. Real-time high-dose-rate brachytherapy with 192-Ir for prostate cancer (dose planning). Voprosy onkologii = Oncology Issues 2015(1):130-6. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Новиков С.Н., Канаев С.В., Новиков Р.В. и др. Высокодозная брахитерапия рака предстательной железы в режиме реального времени с использованием источника 192-Ir (особенности дозиметрического планирования). Вопросы онкологии 2015(1):130—6.</mixed-citation></citation-alternatives></ref><ref id="B45"><label>45.</label><mixed-citation>Armstrong N., Bahl A., Pinkawa M. et al. SpaceOAR hydrogel spacer for reducing radiation toxicity during radiotherapy for prostate cancer. A systematic review. Urology 2021:S0090-4295(21)00421-0. DOI: 10.1016/j.urology.2021.05.013.</mixed-citation></ref><ref id="B46"><label>46.</label><mixed-citation>Leiker A.J., Desai N.B., Folkert M.R. Rectal radiation dose-reduction techniques in prostate cancer: a focus on the rectal spacer. Future Oncol 2018;14(26):2773—88. DOI: 10.2217/fon-2018-0286.</mixed-citation></ref><ref id="B47"><label>47.</label><mixed-citation>Fried D.B., Dubose R.S., Johnson K. et al. Dosimetry for organs at risk with and without use of perirectal hydrogel spacer in prostate cancer patients treated with SBRT. Int J Radiat Oncol Biol Phys 2017;99(2 Suppl 1):E233. DOI: 10.1016/j.ijrobp.2017.06.1161.</mixed-citation></ref><ref id="B48"><label>48.</label><mixed-citation>Langen K.M., Willoughby T.R., Meeks S.L. et al. Observations on real-time prostate gland motion using electromagnetic tracking. Int J Radiat Oncol Biol Phys 2008;71(4):1084—90. DOI: 10.1016/j.ijrobp.2007.11.054.</mixed-citation></ref><ref id="B49"><label>49.</label><mixed-citation>Cuccia F., Mazzola R., Nicosia L. et al. Impact of hydrogel perirectal spacer insertion on prostate gland intra-fraction motion during 1.5 T MR-guided stereotactic body radiotherapy. Radiat Oncol 2020;15(1):178. DOI: 10.1186/s13014-020-01622-3.</mixed-citation></ref><ref id="B50"><label>50.</label><mixed-citation>Sato H., Kato T., Motoyanagi T. et al. Preliminary analysis of prostate positional displacement using hydrogel spacer during the course of proton therapy for prostate cancer. J Radiat Res 2021;62(2):294—9. DOI: 10.1093/jrr/rraa115.</mixed-citation></ref><ref id="B51"><label>51.</label><citation-alternatives><mixed-citation xml:lang="en">Novikov R.V., Novikov S.N., Protoshchak V.V., Dzhalilov I.B. Radiation-induced erectile dysfunction in patients with pros-tate cancer: current methods of radiotherapy. Onkourologiya = Cancer Urology 2020;16(3):143—52. (In Russ.). DOI: 10.17650/1726-9776-2020-16-3-143-152.</mixed-citation><mixed-citation xml:lang="ru">Новиков Р.В., Новиков С.Н., Протощак В.В., Джалилов И.Б. Радиационно-индуцированная эректильная дисфункция у больных раком предстательной железы: современные технологии лучевого лечения. Онкоурология 2020;16(3):143—52. DOI: 10.17650/1726-9776-2020-16-3-143-152.</mixed-citation></citation-alternatives></ref><ref id="B52"><label>52.</label><mixed-citation>Saigal K., Schofield D., Nguyen N. et al. SpaceOAR hydrogel improves neurovascular bundle dosimetry in MRI guided HDR brachytherapy. Brachy-therapy 2019;18(3 Suppl):S63—4. DOI: 10.1016/j.brachy.2019.04.134.</mixed-citation></ref><ref id="B53"><label>53.</label><mixed-citation>Hwang M.E., Mayeda M., Shaish H. et al. Dosimetric feasibility of neurovascular bundle-sparing stereotactic body radiotherapy with periprostatic hydrogel spacer for localized prostate cancer to preserve erectile function. Br J Radiol 2021;94(1119): 20200433. DOI: 10.1259/bjr.20200433.</mixed-citation></ref><ref id="B54"><label>54.</label><mixed-citation>Leiker A.J., Rezaeian N.H., Laine A.M. et al. Prostate cancer neurovascular element sparing with stereotactic ablative radiation therapy (SAbR): a pilot dosimetric study for the POTEN-C Trial. Int J Radiat Oncol Biol Phys 2018;102(3):e125. DOI: 10.1016/j.ijrobp.2018.07.335.</mixed-citation></ref><ref id="B55"><label>55.</label><mixed-citation>Aminsharifi A., Kotamarti S., Silver D., Schulman A. Major complications and adverse events related to the injection of the SpaceOAR hydrogel system before radiotherapy for prostate cancer: review of the manufacturer and user facility device experience database. J Endourol 2019;33(10):868—71. DOI: 10.1089/end.2019.0431.</mixed-citation></ref><ref id="B56"><label>56.</label><mixed-citation>Iinuma K., Mizutani K., Kato T. et al. Spontaneous healing of rectal penetration by SpaceOAR® hydrogel insertion during permanent iodine-125 implant brachytherapy: a case report. Mol Clin Oncol 2019;11(6):580—2. DOI: 10.3892/mco.2019.1937.</mixed-citation></ref><ref id="B57"><label>57.</label><mixed-citation>Kuperus J.M., Kim D.G., Shah T. et al. Rectourethral fistula following SpaceOAR gel placement for prostate cancer radiotherapy: a rare complication. Urol Case Rep 2020;35:101516. DOI: 10.1016/j.eucr.2020.101516.</mixed-citation></ref><ref id="B58"><label>58.</label><mixed-citation>Imai K., Sakamoto H., Akahane M. et al. Spontaneous remission of rectal ulcer associated with SpaceOAR® hydrogel insertion in radiotherapy for prostate cancer. IJU Case Rep 2020;3(6):257-60. DOI: 10.1002/iju5.12209.</mixed-citation></ref></ref-list></back></article>
