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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">10.24884/1561-6274-2007-11-4-47-54</article-id><article-id custom-type="elpub" pub-id-type="custom">nefr-949</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>АТЕРОСКЛЕРОЗ  КАК  ОСНОВНОЙ  ФАКТОР  КАЛЬЦИНОЗА  КЛАПАННОГО  АППАРАТА  СЕРДЦА  В  ДОДИАЛИЗНОМ  ПЕРИОДЕ  ХРОНИЧЕСКОЙ  БОЛЕЗНИ  ПОЧЕК</article-title><trans-title-group xml:lang="en"><trans-title>ATHEROCLEROSIS AS THE  MAIN  FACTOR OF CALCINOSIS OF THE  HEART  VALVE APPARATUS  IN THE  PREDIALYSIS  PERIOD  OF CHRONIC  KIDNEY  DISEASE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волков</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkov</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра пропедевтики внутренних болезней, Научно-исследовательский  институт нефрологии</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дегтерева</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Degtereva</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра пропедевтики внутренних болезней, Научно-исследовательский  институт нефрологии</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра пропедевтики внутренних болезней, Научно-исследовательский  институт нефрологии</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шевякова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shevyakova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра пропедевтики внутренних болезней, Научно-исследовательский  институт нефрологии</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Панина</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Panina</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра пропедевтики внутренних болезней, Научно-исследовательский  институт нефрологии</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трофименко</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Trofimenko</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра пропедевтики внутренних болезней, Научно-исследовательский  институт нефрологии</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Санкт-Петербургский государствен­ный медицинский университет им. акад.  И.П.Павлова</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2007</year></pub-date><pub-date pub-type="epub"><day>10</day><month>04</month><year>2007</year></pub-date><volume>11</volume><issue>4</issue><fpage>47</fpage><lpage>54</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Волков М.М., Дегтерева О.А., Смирнов А.В., Шевякова Е.В., Панина И.Ю., Трофименко И.И., 2007</copyright-statement><copyright-year>2007</copyright-year><copyright-holder xml:lang="ru">Волков М.М., Дегтерева О.А., Смирнов А.В., Шевякова Е.В., Панина И.Ю., Трофименко И.И.</copyright-holder><copyright-holder xml:lang="en">Volkov M.M., Degtereva O.A., Smirnov A.V., Shevyakova E.V., Panina I.Y., Trofimenko I.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://journal.nephrolog.ru/jour/article/view/949">https://journal.nephrolog.ru/jour/article/view/949</self-uri><abstract><p>ЦЕЛЬ ИССЛЕДОВАНИЯ: определить частоту кальциноза митрального (МК) и аортального (АК) клапанов сердца у пациентов в додиализном периоде хронической болезни почек (ХБП) и установить факторы, с ним связанные. ПАЦИЕНТЫ И МЕТОДЫ. В исследование вошли 317 пациентов (46,1% мужчин и 53,9% женщин) с ХБП 1-5 стадий в додиализном периоде, в возрасте 50,7±15,2 лет (14-84). Пациенты с хроническим гломерулонефритом составляли 30,7%, с диабетической нефропатией 29,4%, с гипертонической болезнью 17,7%, с прочими заболеваниями - 22,0%. Пациентам выполняли доплер-эхокардиографию (доплер-ЭхоКГ), суточное мониторирование АД, ЭКГ. Состояние МК и АК оценивали как норму, уплотнение, кальциноз (фиброзного кольца или створок). Толщину комплекса интима-медия сонных артерий (КИМ) измеряли c двух сторон на 3 уровнях. У части пациентов определяли интактный паратгормон, выполняли денситометрию костей предплечья, рентгенологически определяли толщину кортикальных слоев 2-й пястной кости, измеряли суммарную протяженность кальциноза брюшной аорты по методике A.E. Hak и соавт. [<xref ref-type="bibr" rid="cit1">1</xref>]. РЕЗУЛЬТАТЫ. Кальциноз клапанов в обследованной группе выявлен у 22,1% пациентов: АК – у 6,3%, МК – 4,1% и обоих клапанов у 11,7%. При сравнении групп, различающихся по наличию кальциноза клапанов (АК, МК или обоих), выявлено, что у пациентов с кальцинозом была больше толщина КИМ (p&lt;0,001), старше возраст (p&lt;0,001), чаще встречался сахарный диабет (p&lt;0,001), ИБС (p&lt;0,001), сердечная недостаточность (p&lt;0,001), было выше АД (p&lt;0,001), была ниже СКФ по формуле MDRD (p=0,033), меньше размеры почек (p=0,039) и толщина их паренхимы (p=0,015), отмечалась тенденция к более высоким значениям паратгормона (p=0,089). При использовании многофакторных методов (дискриминантного анализа) обнаружено, что на кальциноз клапанов независимо влияли толщина КИМ (p&lt;0,001) и наличие сахарного диабета (р=0,024). ЗАКЛЮЧЕНИЕ. Кальциноз сердечных клапанов выявлен у 22,1% пациентов в додиализном периоде ХБП. Он тесно связан с атеросклерозом (в свою очередь ассоциированным с возрастом пациентов, гипертензией, снижением СКФ, воспалительными изменениями), а также с наличием сахарного диабета.</p></abstract><trans-abstract xml:lang="en"><p>THE AIM of the investigation was to determine the incidence of calcinosis of the mitral (MV) and aortal (AV) heart valves in patients in the predialysis period of chronic kidney disease (CKD) and the associated factors. PATIENTS AND METHODS. The investigation included 317 patients (46.1% of men and 53.9% of women) with 1-5 stages of CKD in the predialysis period. The age of the patients was 50.7±15.2 years (14-84). There were 30.7% of patients with chronic glomerulonephritis, 29.4% with diabetic nephropathy, 17.7% with essential hypertension, 22.0% with other diseases. Doppleroechocardiography (Doppler-EchoCG), daily monitoring of AP, ECG were performed. The state of MV and AV was assessed: norm, hardening, calcinosis (of fibrous ring or cusps). The thickness of the carotid artery intima-media complex (IMC) was measured on two sides at 3 levels. In part of the patients the intact parathormone was determined, densitometry of the forearm bones was made, the thickness of cortical layers of the 2nd metacarpal bone was determined by X-ray examination, total extension of the abdominal aorta calcinosis was measured by the A.E.Hak el al. method. RESULTS. Valve calcinosis was detected in 22.1% of the first group patients: AV – in 6.3%, MV – in 4.1% and of the both valves in 11.7%. A comparison of the groups different in the presence of valve calcinosis (AV, MV or both) has shown that patients with calcinosis had greater thickness of IMC (p&lt; 0.001), older age (p&lt;0.001), more often incidence of diabetes mellitus (p&lt;0.001), IHD (p&lt;0.001), heart failure (p&lt;0.001), higher AP (p&lt;0.001), lower GFR by MDRD formula (p=0.033), less sizes of the kidneys (p=0.039) and their parenchyma thickness (p=0.015), tendency towards higher values of parathormone (p= 0.089). Using multifactor methods (discriminative analysis) revealed that valve calcinosis was independently influenced by IMC thichness (p=0.001) and diabetes mellitus (p=0.024). CONCLUSION. Heart valve calcinosis was revealed in 22.1% of the patients in the predialysis period of CKD. It was closely associated with atherosclerosis (in its turn associated with the patient’s age, hypertension, lower GFR, inflammatory alterations) and diabetes mellitus.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>хроническая болезнь почек</kwd><kwd>атеросклероз</kwd><kwd>сердце</kwd><kwd>клапанный аппарат</kwd><kwd>кальцификация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chronic kidney disease</kwd><kwd>atherosclerosis</kwd><kwd>heart</kwd><kwd>valve apparatus</kwd><kwd>calcification</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">Hak AE, Pols HA, van Hemert AM et al. Progression of aortic calcification is associated with metacarpal bone loss during menopause: a population-based longitudinal study. Arterioscler Thromb Vasc Biol 2000; 20(8): 1926-1931</mixed-citation><mixed-citation xml:lang="en">Hak AE, Pols HA, van Hemert AM et al. Progression of aortic calcification is associated with metacarpal bone loss during menopause: a population-based longitudinal study. Arterioscler Thromb Vasc Biol 2000; 20(8): 1926-1931</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Foley RN, Parfrey PS, Harnett JD et al. Clinical and echocardiographic disease in end-stage renal disease: prevalence, associations and prognosis. Kidney Int 1995; 47: 186-192</mixed-citation><mixed-citation xml:lang="en">Foley RN, Parfrey PS, Harnett JD et al. Clinical and echocardiographic disease in end-stage renal disease: prevalence, associations and prognosis. Kidney Int 1995; 47: 186-192</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Levey AS, Beto JA, Coronado BE et al. Controlling the epidemic of cardiovascular disease in chronic renal disease: What do we know? What do we need to learn? Where do we go from here? Am J Kid Dis 1998; 32: 853-906</mixed-citation><mixed-citation xml:lang="en">Levey AS, Beto JA, Coronado BE et al. Controlling the epidemic of cardiovascular disease in chronic renal disease: What do we know? What do we need to learn? Where do we go from here? Am J Kid Dis 1998; 32: 853-906</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">U.S. Renal Data System, USRDS 2003 Annual Data Report: Atlas of End-Stage Renal Disease in the United States, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, 2003: 560</mixed-citation><mixed-citation xml:lang="en">U.S. Renal Data System, USRDS 2003 Annual Data Report: Atlas of End-Stage Renal Disease in the United States, National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD, 2003: 560</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Wang AY, Wang M, Woo J et al. Cardiac valve calcification as an important predictor for all-cause mortality and cardiovascular mortality in long-term peritoneal dialysis patients: a prospective study. J Am Soc Nephrol 2003;14(1):159-168</mixed-citation><mixed-citation xml:lang="en">Wang AY, Wang M, Woo J et al. Cardiac valve calcification as an important predictor for all-cause mortality and cardiovascular mortality in long-term peritoneal dialysis patients: a prospective study. J Am Soc Nephrol 2003;14(1):159-168</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Sharma R, Pellerin D, Gaze DC et al. Mitral annular calcification predicts mortality and coronary artery disease in end stage renal disease. Atherosclerosis 2007; 191(2): 348-354</mixed-citation><mixed-citation xml:lang="en">Sharma R, Pellerin D, Gaze DC et al. Mitral annular calcification predicts mortality and coronary artery disease in end stage renal disease. Atherosclerosis 2007; 191(2): 348-354</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Mazzaferro S, Coen G, Bandini S et al. Role of ageing, chronic renal failure and dialysis in the calcification of mitral annulus. Nephrol Dial Transplant 1993; 8(4): 335-340</mixed-citation><mixed-citation xml:lang="en">Mazzaferro S, Coen G, Bandini S et al. Role of ageing, chronic renal failure and dialysis in the calcification of mitral annulus. Nephrol Dial Transplant 1993; 8(4): 335-340</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Raj Dominic SC, Somiah S, Mani K et al. Valvular dysfunction in uraemia. Indian J Med Res 1996;103:98-102</mixed-citation><mixed-citation xml:lang="en">Raj Dominic SC, Somiah S, Mani K et al. Valvular dysfunction in uraemia. Indian J Med Res 1996;103:98-102</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Bijak K, Matuszkiewicz-Rowinska J, Niemczyk S et al. Valvular and vascular calcifications in patients with chronic kidney disease: the role of dyslipidemia. Nephrol Dial Transpl 2006; 21 [suppl 4]: iv 404</mixed-citation><mixed-citation xml:lang="en">Bijak K, Matuszkiewicz-Rowinska J, Niemczyk S et al. Valvular and vascular calcifications in patients with chronic kidney disease: the role of dyslipidemia. Nephrol Dial Transpl 2006; 21 [suppl 4]: iv 404</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Волгина ГВ, Перепеченых ЮВ, Бикбов БТ. Кальцификация клапанов сердца у больных с терминальной хронической почечной недостаточностью. Нефрология и диализ 2001; 3(1)</mixed-citation><mixed-citation xml:lang="en">Волгина ГВ, Перепеченых ЮВ, Бикбов БТ. Кальцификация клапанов сердца у больных с терминальной хронической почечной недостаточностью. Нефрология и диализ 2001; 3(1)</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Volgina G, Tomilina N, Lebedev S et al. Cardiac valve calcification in dialysis patients. Nephrol Dial Transpl 2006; 21 [suppl 4]: iv 405</mixed-citation><mixed-citation xml:lang="en">Volgina G, Tomilina N, Lebedev S et al. Cardiac valve calcification in dialysis patients. Nephrol Dial Transpl 2006; 21 [suppl 4]: iv 405</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Шило ВЮ, Гендлин ГЕ, Перекокин ЮН и др. Кальциноз структур сердца у больных на программном гемодиализе: связь с факторами риска и показателями внутрисердечной гемодинамики. Нефрология и диализ 2003; 5(1) [приложение 1]: 58-66</mixed-citation><mixed-citation xml:lang="en">Шило ВЮ, Гендлин ГЕ, Перекокин ЮН и др. Кальциноз структур сердца у больных на программном гемодиализе: связь с факторами риска и показателями внутрисердечной гемодинамики. Нефрология и диализ 2003; 5(1) [приложение 1]: 58-66</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Rufino M, Garcia S, Jimenez A et al. Heart valve calcification and calcium x phosphorus product in hemodialysis patients: analysis of optimum values for its prevention. Kidney Int 2003; 85 [Suppl]:S115-118</mixed-citation><mixed-citation xml:lang="en">Rufino M, Garcia S, Jimenez A et al. Heart valve calcification and calcium x phosphorus product in hemodialysis patients: analysis of optimum values for its prevention. Kidney Int 2003; 85 [Suppl]:S115-118</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Raos V, Jeren-Strujic B, Antos M, Horvatin-Godler S. Frequency of mitral annular calcification in patients on hemodialysis estimated by 2-dimensional echocardiography. Acta Med Croatica 1996; 50(4-5):179-183</mixed-citation><mixed-citation xml:lang="en">Raos V, Jeren-Strujic B, Antos M, Horvatin-Godler S. Frequency of mitral annular calcification in patients on hemodialysis estimated by 2-dimensional echocardiography. Acta Med Croatica 1996; 50(4-5):179-183</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Wang AY, Woo J, Wang M et al. Association of inflammation and malnutrition with cardiac valve calcification in continuous ambulatory peritoneal dialysis patients. J Am Soc Nephrol 2001; 12(9): 1927-1936</mixed-citation><mixed-citation xml:lang="en">Wang AY, Woo J, Wang M et al. Association of inflammation and malnutrition with cardiac valve calcification in continuous ambulatory peritoneal dialysis patients. J Am Soc Nephrol 2001; 12(9): 1927-1936</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Ribeiro S, Ramos A, Brandao A et al. Cardiac valve calcification in haemodialysis patients: role of calcium-phosphate metabolism. Nephrol Dial Transplant 1998; 13(8): 2037-2040</mixed-citation><mixed-citation xml:lang="en">Ribeiro S, Ramos A, Brandao A et al. Cardiac valve calcification in haemodialysis patients: role of calcium-phosphate metabolism. Nephrol Dial Transplant 1998; 13(8): 2037-2040</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Levin A, Bakris GL, Molitch M et al. Prevalence of abnormal serum vitamin D, PTH, calcium, and phosphorus in patients with chronic kidney disease: results of the study to evaluate early kidney disease. Kid Int 2007; 71: 31-38</mixed-citation><mixed-citation xml:lang="en">Levin A, Bakris GL, Molitch M et al. Prevalence of abnormal serum vitamin D, PTH, calcium, and phosphorus in patients with chronic kidney disease: results of the study to evaluate early kidney disease. Kid Int 2007; 71: 31-38</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Jesri A, Braitman LE, Pressman GS. Severe mitral annular calcification predicts chronic kidney disease. Int J Cardiol 2007 Jul 19; [Epub ahead of print]</mixed-citation><mixed-citation xml:lang="en">Jesri A, Braitman LE, Pressman GS. Severe mitral annular calcification predicts chronic kidney disease. Int J Cardiol 2007 Jul 19; [Epub ahead of print]</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Ix JH, Shlipak MG, Katz R et al. Kidney function and aortic valve and mitral annular calcification in the Multi-Ethnic Study of Atherosclerosis (MESA). Am J Kidney Dis 2007; 50(3): 412-20</mixed-citation><mixed-citation xml:lang="en">Ix JH, Shlipak MG, Katz R et al. Kidney function and aortic valve and mitral annular calcification in the Multi-Ethnic Study of Atherosclerosis (MESA). Am J Kidney Dis 2007; 50(3): 412-20</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Baglin A, Hanslik Т, Vaillant J et al. Severe valvular heart disease in patients on chronic dialysis. A five-year multicenter French survey. Ann Med Interne Paris 1997; 148(8): 521-526</mixed-citation><mixed-citation xml:lang="en">Baglin A, Hanslik Т, Vaillant J et al. Severe valvular heart disease in patients on chronic dialysis. A five-year multicenter French survey. Ann Med Interne Paris 1997; 148(8): 521-526</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Otto CM, Lind BK, Kitzman DW et al. Association of aortic-valve sclerosis with cardiovascular mortality and morbidity in the elderly. N Engl J Med 1999; 341: 142–147</mixed-citation><mixed-citation xml:lang="en">Otto CM, Lind BK, Kitzman DW et al. Association of aortic-valve sclerosis with cardiovascular mortality and morbidity in the elderly. N Engl J Med 1999; 341: 142–147</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Moe SM, O’Neill KD, Duan D et al. Medial artery calcification in ESRD patients is associated with deposition of bone matrix proteins. Kidney Int 2002; 61: 638–647</mixed-citation><mixed-citation xml:lang="en">Moe SM, O’Neill KD, Duan D et al. Medial artery calcification in ESRD patients is associated with deposition of bone matrix proteins. Kidney Int 2002; 61: 638–647</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Mohler ER III, Gannon F, Reynolds C et al. Bone formation and inflammation in cardiac valves. Circulation 2001; 103: 1522–1528</mixed-citation><mixed-citation xml:lang="en">Mohler ER III, Gannon F, Reynolds C et al. Bone formation and inflammation in cardiac valves. Circulation 2001; 103: 1522–1528</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Raggi P, Bommer J, Chertow GM. Valvular calcification in hemodialysis patients randomized to calcium-based phosphorus binders or sevelamer. J Heart Valve Dis 2004; 13(1): 134-141</mixed-citation><mixed-citation xml:lang="en">Raggi P, Bommer J, Chertow GM. Valvular calcification in hemodialysis patients randomized to calcium-based phosphorus binders or sevelamer. J Heart Valve Dis 2004; 13(1): 134-141</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Ventura JE, Tavella N, Romero C et al. Aortic valve calcification is an independent factor of left ventricular hypertrophy in patients on maintenance haemodialysis. Nephrol Dial Transplant 2002; 17(10): 1795-1801</mixed-citation><mixed-citation xml:lang="en">Ventura JE, Tavella N, Romero C et al. Aortic valve calcification is an independent factor of left ventricular hypertrophy in patients on maintenance haemodialysis. Nephrol Dial Transplant 2002; 17(10): 1795-1801</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Huting J. Mitral valve calcification as an index of left ventricular dysfunction in patients with end-stage renal disease on peritoneal dialysis. Chest 1994; 105(2): 383-388</mixed-citation><mixed-citation xml:lang="en">Huting J. Mitral valve calcification as an index of left ventricular dysfunction in patients with end-stage renal disease on peritoneal dialysis. Chest 1994; 105(2): 383-388</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Malergue MC, Urena P, Prieur P et al. Incidence and development of aortic stenosis in chronic hemodialysis. An ultrasonographic and biological study of 112 patients. Arch Mal Coeur Vaiss 1997; 90(12): 1595-1601</mixed-citation><mixed-citation xml:lang="en">Malergue MC, Urena P, Prieur P et al. Incidence and development of aortic stenosis in chronic hemodialysis. An ultrasonographic and biological study of 112 patients. Arch Mal Coeur Vaiss 1997; 90(12): 1595-1601</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Ferramosca E, Bellas A, Muntner P et al. Aortic valve calcification as a marker of coronary artery disease in prevalent hemodialysis patients. Nephrol Dial Transpl 2006; 21 [suppl 4]: iv 438</mixed-citation><mixed-citation xml:lang="en">Ferramosca E, Bellas A, Muntner P et al. Aortic valve calcification as a marker of coronary artery disease in prevalent hemodialysis patients. Nephrol Dial Transpl 2006; 21 [suppl 4]: iv 438</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Jeren-Strujic B, Raos V, Jeren T, Horvatin-Godler S. Comparative study of mitral annular calcification (MAC) with cardiac arrhythmias in dialysis patients. Coll Anthropol 1997; 21(1): 167-174</mixed-citation><mixed-citation xml:lang="en">Jeren-Strujic B, Raos V, Jeren T, Horvatin-Godler S. Comparative study of mitral annular calcification (MAC) with cardiac arrhythmias in dialysis patients. Coll Anthropol 1997; 21(1): 167-174</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>
