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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">nefr</journal-id><journal-title-group><journal-title xml:lang="ru">Нефрология</journal-title><trans-title-group xml:lang="en"><trans-title>Nephrology (Saint-Petersburg)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-6274</issn><issn pub-type="epub">2541-9439</issn><publisher><publisher-name>Pavlov First Saint-Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.36485/1561-6274-2021-25-4-42-47</article-id><article-id custom-type="elpub" pub-id-type="custom">nefr-2008</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. КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES. CLINICAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Прогностическое значение условий оптимального начала диализа (мета-анализ обсервационных исследований)</article-title><trans-title-group xml:lang="en"><trans-title>Predictive value of the conditions for the optimal dialysis initiation (Meta-analysis of observational  studies)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7179-5520</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Добронравов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dobronravov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Проф. Добронравов Владимир Александрович, д-р мед. наук, заместитель директора по научной работе научно-исследовательского института нефрологии, профессор кафедры пропедевтики внутренних болезней с клиникой</p><p>197022, Россия, Санкт-Петербург, ул. Л. Толстого, д. 17,корп. 54</p><p>Тел.: +7(812)338-69-01</p></bio><bio xml:lang="en"><p>Prof. Vladimir A. Dobronravov, MD, PhD, DSc, Research Institute of Nephrology, Deputy Director for Research; Department of Propedeutics of Internal Diseases with the Clinic,</p><p>197022, Russian Federation, Saint Petersburg , L.Tolstoy st., 17, build. 54.  </p><p>Phone:+7(812)338-69-01</p></bio><email xlink:type="simple">dobronravov@nephrolog.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/0000-0003-0758-8137</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карунная</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Karunnaya</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Карунная Анна Викторовна, врач-нефролог, научно-исследовательский институт нефрологии, отделение хронического гемодиализа, ассистент кафедры пропедевтики внутренних болезней с клиникой.</p><p>197022, Россия, Санкт-Петербург, ул. Л. Толстого, д. 17,корп. 54</p><p>Тел.:+7(812)338-69-14</p></bio><bio xml:lang="en"><p>Anna V. Karunnaya, MD, Research Institute of Nephrology, Department of Chronic Hemodialysis, nephrologist, Department of Propaedeutics of Internal Diseases with the Clinic, assistant</p><p>97022, Russian Federation, Saint Petersburg, L. Tolstoy st., 17, build. 54</p><p>Phone: +7(812)338-69-14</p></bio><email xlink:type="simple">a.v.karunnaya@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>15</day><month>07</month><year>2021</year></pub-date><volume>25</volume><issue>4</issue><fpage>42</fpage><lpage>47</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Добронравов В.А., Карунная А.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Добронравов В.А., Карунная А.В.</copyright-holder><copyright-holder xml:lang="en">Dobronravov V.A., Karunnaya A.V.</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://journal.nephrolog.ru/jour/article/view/2008">https://journal.nephrolog.ru/jour/article/view/2008</self-uri><abstract><sec><title>ВВЕДЕНИЕ</title><p>ВВЕДЕНИЕ. Выживаемость пациентов на диализе остается низкой. В ряде обсервационных исследований показано, что условия начала диализа могут определять отдаленные исходы, включая смертность.</p></sec><sec><title>ЦЕЛЬ ИССЛЕДОВАНИЯ</title><p>ЦЕЛЬ ИССЛЕДОВАНИЯ. Сравнить смертность пациентов при определенных условиях оптимального (планового) и субоптимального (незапланированного) начала диализа.</p></sec><sec><title>МЕТОДЫ</title><p>МЕТОДЫ. Используя базы данных MEDLINE и EMBASE с момента создания до июня 2020, мы провели систематический поиск исследований, в которых изучали общую смертность пациентов, соответствующих или несоответствующих предопределенным условиям «оптимального» старта заместительной почечной терапии (ЗПТ): запланированное и незапланированное начало; начало ЗПТ на постоянном доступе и временном; с предшествующим наблюдением нефролога и без такового. В результате систематического поиска, последующего анализа и отбора публикаций в мета-анализ (МА) были включены 8, с числом инцидентных пациентов – 22 755, из них 13 680 – с плановым началом диализа.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Смертность от всех причин среди пациентов с началом диализа в субоптимальных условиях была выше, чем при оптимальных условиях (46,6 и 34,4 %, p&lt;0,001), а относительный риск (ОР) наступления фатального исхода увеличивался в среднем на 35,1 % (95 % доверительный интервал (ДИ) 30,8–39,4 %, р&lt;0,0001). Для предупреждения одного смертельного исхода необходимо начать диализ в плановом (оптимальном) режиме у 8 пациентов (95 % ДИ 7–9).</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. В проведенном МА продемонстрирована связь ургентного начала ЗПТ, использования временного доступа для диализа, отсутствия своевременного предшествующего наблюдения нефролога с повышением смертности пациентов на диализе. Предупреждение начала диализа в этих субоптимальных условиях в широкой клинической практике может быть эффективным инструментом улучшения пациент-ориентированных исходов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>BACKGROUND</title><p>BACKGROUND. The survival of dialysis patients remains unsatisfactory. A number of observational studies have shown that the conditions of initiation of dialysis can influence long-term outcomes, including mortality.</p></sec><sec><title>THE AIM</title><p>THE AIM. To compare the mortality of patients under predefined conditions of optimal (planned) and suboptimal (unplanned) dialysis initiation.</p></sec><sec><title>METHODS</title><p>METHODS. Using the MEDLINE and EMBASE databases from inception to June 2020, we conducted a systematic search for studies that examined the overall mortality of patients who met or did not meet the predefined conditions for an “optimal” start of renal replacement therapy (RRT): planned vs. unplanned onset; initiation of substitution therapy on permanent access vs. temporary; with priorobservation of the nephrologist vs. without it. As a result of a systematic search, subsequent analysis and selection of publica tions, 8 studies were included in the meta-analysis (total number of incident patients was 22755; 13680 patients met the conditions of the optimal dialysis start).</p></sec><sec><title>RESULTS</title><p>RESULTS. All-cause mortality among patients with the conditions of suboptimal dialysis start was higher than in those with the optimal start (34.4 % vs. 46.6 %, p&lt;0,001) with the increase in the relative risk (RR) of fatal outcome by 35.1 % (95 % confidence interval (CI) 30.8 %-39.4 %, p&lt;0.0001). Estimated number of patients needed to start dialysis in the optimal conditions to prevent 1 death was 8 (95 % CI 7-9).</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. The meta-analysis demonstrated the relationship between the urgent initiation of RRT, the use of temporary access for dialysis, and the lack of timely prior follow-up by a nephrologist with an increase in mortality. Prevention of dialysis initiation in these suboptimal conditions in real-world clinical practice can be an effective tool for improving patient-centered outcomes.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>хроническая болезнь почек</kwd><kwd>диализ</kwd><kwd>смертность</kwd><kwd>сроки</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chronic kidney disease</kwd><kwd>dialysis</kwd><kwd>mortality</kwd><kwd>timing</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">Kramer A, Boenink R, Noordzij M et al. The ERA-EDTA Registry Annual Report 2017: a summary. Clin Kidney J 2020;13(4):693–709. doi: 10.1093/ckj/sfaa048</mixed-citation><mixed-citation xml:lang="en">Kramer A, Boenink R, Noordzij M et al. The ERA-EDTA Registry Annual Report 2017: a summary. 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