<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2023-39-3-121-127</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-1954</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>КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Показатели деформации левого желудочка у пациентов пожилого и старческого возраста с аортальным стенозом после транскатетерной имплантации аортального клапана</article-title><trans-title-group xml:lang="en"><trans-title>Parameters of left ventricular deformation in elderly and senile patients with aortic stenosis after transcatheter implantation of the aortic valve</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6056-835X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Матвеева</surname><given-names>М. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Matveeva</surname><given-names>M. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Матвеева Марина Георгиевна, канд. мед. наук, врач функциональной диагностики</p><p>121359, Российская Федерация, Москва, ул. Маршала Тимошенко, 15</p></bio><bio xml:lang="en"><p>Marina G. Matveeva, Cand. Sci. (Med.), Doctor of Functional Diagnostics</p><p>15, Marshala Timoshenko str., Moscow, 121359, Russian Federation</p></bio><email xlink:type="simple">mgmatveevf@yandex.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/0000-0001-6693-3944</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тер-Акопян</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ter-Akopyan</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тер-Акопян Армен Вигенович, д-р мед. наук, заведующий отделением рентгенохирургических методов диагностики и лечения</p><p>121359, Российская Федерация, Москва, ул. Маршала Тимошенко, 15</p></bio><bio xml:lang="en"><p>Armen V. Ter-Akopyan, Dr. Sci. (Med), Head of the Department of X-ray Surgical Methods of Diagnosis and Treatment </p><p>15, Marshala Timoshenko str., Moscow, 121359, Russian Federation</p></bio><email xlink:type="simple">terarmen@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/0000-0002-9725-7528</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алехин</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekhin</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алехин Михаил Николаевич, д-р мед. наук, профессор, заведующий отделением функциональной диагностики</p><p>121359, Российская Федерация, Москва, ул. Маршала Тимошенко, 15</p></bio><bio xml:lang="en"><p>Mikhail N. Alekhin, Dr. Sci. (Med), Professor, Head of the Department of Functional Diagnostics </p><p>15, Marshala Timoshenko str., Moscow, 121359, Russian Federation</p></bio><email xlink:type="simple">amn@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Центральная клиническая больница с поликлиникой Управления делами Президента Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Central Clinical Hospital with Outpatient Clinic of Department of Presidential Affairs</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>13</day><month>10</month><year>2023</year></pub-date><volume>38</volume><issue>3</issue><fpage>121</fpage><lpage>127</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Матвеева М.Г., Тер-Акопян А.В., Алехин М.Н., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Матвеева М.Г., Тер-Акопян А.В., Алехин М.Н.</copyright-holder><copyright-holder xml:lang="en">Matveeva M.G., Ter-Akopyan A.V., Alekhin M.N.</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.sibjcem.ru/jour/article/view/1954">https://www.sibjcem.ru/jour/article/view/1954</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: оценить показатели деформации миокарда левого желудочка (ЛЖ) (продольной, циркулярной и радиальной) у пациентов с симптоматически тяжелым аортальным стенозом (АС) с сохранной фракцией выброса левого желудочка (ФВ ЛЖ) после транскатетерной имплантации аортального клапана (ТИАК) в раннем послеоперационном периоде.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование был включен 31 пациент из 69 с симптоматически тяжелым АС, которым выполнена ТИАК. Эхокардиография (ЭхоКГ) с использованием технологии двухмерной спекл-трекинг выполнялась до ТИАК и в раннем послеоперационном периоде (в течение 5 ± 1,7 дней).</p></sec><sec><title>Результаты</title><p>Результаты. Достоверно значимых различий при анализе показателей деформации ЛЖ до ТИАК и в раннем послеоперационном периоде не было получено. Наблюдалась тенденция к увеличению продольной деформации ЛЖ, в том числе продольной деформации базальных, средних и апикальных сегментов у отдельных пациентов. Продольная деформация левого предсердия (ЛП) после ТИАК не изменилась.</p></sec><sec><title>Заключение</title><p>Заключение. У пациентов пожилого и старческого возраста с тяжелым АС и сохранной ФВ ЛЖ, но со сниженными показателями деформации ЛЖ (продольного, циркулярного и радиального) после малоинвазивной ТИАК в раннем послеоперационном периоде достоверных изменений показателей деформации не было. Наблюдается тенденция к увеличению глобальной продольной деформации ЛЖ.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim: To evaluate the parameters of left ventricle (LV) myocardial deformation (longitudinal, circular and radial) in patients with symptomatic severe aortic stenosis (AS) with preserved LV ejection fraction after transcatheter aortic implantation valve (TAVI) in the early postoperative period.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. The study included 31 patients after TAVI out of 69 with symptomatic severe AS. Echocardiography (EchoCG) using two-dimensional speckle tracking technology was performed before TAVI and in the early postoperative period (within 5 ± 1,7 days).</p></sec><sec><title>Results</title><p>Results. There were no significant differences in the analysis of deformation parameters before TAVI and in the early postoperative period. There was a tendency to increase the longitudinal deformation of the LV, including the longitudinal deformation of the basal, middle and apical segments in individual patients. The longitudinal deformation of the left atrium did not change after TAVI.</p></sec><sec><title>Conclusion</title><p>Conclusion. There were no significant changes in deformation parameters in elderly and senile patients with severe AS and preserved LV ejection fraction and with reduced LV deformation (longitudinal, circular and radial) after minimally invasive TAVI in the early postoperative period. There is a tendency to increase the global longitudinal deformation of the LV.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>аортальный стеноз</kwd><kwd>транскатетерная имплантация аортального клапана</kwd><kwd>деформация левого желудочка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>aortic stenosis</kwd><kwd>transcatheter aortic implantation valve</kwd><kwd>left ventricular deformation</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">Baumgartner H. Aortic stenosis: medical and surgical management. Heart (British Cardiac Society). 2005;91(11):1483–1488. DOI: 10.1136/hrt.2004.056176.</mixed-citation><mixed-citation xml:lang="en">Baumgartner H. Aortic stenosis: medical and surgical management. Heart (British Cardiac Society). 2005;91(11):1483–1488. DOI: 10.1136/hrt.2004.056176.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Al-Rashid F., Totzeck M., Saur N., Jánosi R.A., Lind A., Mahabadi A.A. et al. Global longitudinal strain is associated with better outcomes in transcatheter aortic valve replacement. BMC. Cardiovasc. Disord. 2020;20(1):267. DOI: 10.1186/s12872-020-01556-4.</mixed-citation><mixed-citation xml:lang="en">Al-Rashid F., Totzeck M., Saur N., Jánosi R.A., Lind A., Mahabadi A.A. et al. Global longitudinal strain is associated with better outcomes in transcatheter aortic valve replacement. BMC. Cardiovasc. Disord. 2020;20(1):267. DOI: 10.1186/s12872-020-01556-4.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Nishimura R.A., Otto C.M., Bonow R.O., Carabello B.A., Erwin J.P. 3rd, Guyton R.A. et al. 2014 AHA/ACC Guideline for the management of patients with valvular heart disease: executive summary: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines [published correction appears in Circulation. 2014;129(23):e650]. Circulation. 2014;129(23):2440–2492. DOI: 10.1161/CIR.0000000000000029.</mixed-citation><mixed-citation xml:lang="en">Nishimura R.A., Otto C.M., Bonow R.O., Carabello B.A., Erwin J.P. 3rd, Guyton R.A. et al. 2014 AHA/ACC Guideline for the management of patients with valvular heart disease: executive summary: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines [published correction appears in Circulation. 2014;129(23):e650]. Circulation. 2014;129(23):2440–2492. DOI: 10.1161/CIR.0000000000000029.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Nishimura R.A., Otto C.M., Bonow R.O., Carabello B.A., Erwin J.P. 3rd., Fleisher L.A. et al. AHA/ACC focused update of the 2014 AHA/ACC guideline for the management of patients with valvular heart disease: A report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. Circulation. 2017;135(25):e1159–e1195. DOI: 10.1161/CIR.0000000000000503.</mixed-citation><mixed-citation xml:lang="en">Nishimura R.A., Otto C.M., Bonow R.O., Carabello B.A., Erwin J.P. 3rd., Fleisher L.A. et al. AHA/ACC focused update of the 2014 AHA/ACC guideline for the management of patients with valvular heart disease: A report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. Circulation. 2017;135(25):e1159–e1195. DOI: 10.1161/CIR.0000000000000503.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">D’Ascenzi F., Cameli M., Iadanza A., Lisi M., Zacà V., Reccia R. et al. Improvement of left ventricular longitudinal systolic function after transcatheter aortic valve implantation: a speckle-tracking prospective study. Int. J. Cardiovasc. Imaging. 2013;29(5):1007–1015. DOI: 10.1007/s10554-012-0175-5.</mixed-citation><mixed-citation xml:lang="en">D’Ascenzi F., Cameli M., Iadanza A., Lisi M., Zacà V., Reccia R. et al. Improvement of left ventricular longitudinal systolic function after transcatheter aortic valve implantation: a speckle-tracking prospective study. Int. J. Cardiovasc. Imaging. 2013;29(5):1007–1015. DOI: 10.1007/s10554-012-0175-5.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">D’Andrea A., Padalino R., Cocchia R., Di Palma E., Riegler L., Scarafile R. et al. Effects of transcatheter aortic valve implantation on left ventricular and left atrial morphology and function. Echocardiography. 2015;32(6):928–936. DOI: 10.1111/echo.12808.</mixed-citation><mixed-citation xml:lang="en">D’Andrea A., Padalino R., Cocchia R., Di Palma E., Riegler L., Scarafile R. et al. Effects of transcatheter aortic valve implantation on left ventricular and left atrial morphology and function. Echocardiography. 2015;32(6):928–936. DOI: 10.1111/echo.12808.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Dusenbery S.M., Lunze F.I., Jerosch-Herold M., Geva T., Newburger J.W., Colan S.D. et al. Left ventricular strain and myocardial fibrosis in congenital aortic stenosis. Am. J. Cardiol. 2015;116(8):1257–1262. DOI: 10.1016/j.amjcard.2015.07.042.</mixed-citation><mixed-citation xml:lang="en">Dusenbery S.M., Lunze F.I., Jerosch-Herold M., Geva T., Newburger J.W., Colan S.D. et al. Left ventricular strain and myocardial fibrosis in congenital aortic stenosis. Am. J. Cardiol. 2015;116(8):1257–1262. DOI: 10.1016/j.amjcard.2015.07.042.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Weidemann F., Herrmann S., Störk S., Niemann M., Frantz S., Lange V. et al. Impact of myocardial fibrosis in patients with symptomatic severe aortic stenosis. Circulation. 2009;120(7):577–584. DOI: 10.1161/CIRCULATIONAHA.108.847772.</mixed-citation><mixed-citation xml:lang="en">Weidemann F., Herrmann S., Störk S., Niemann M., Frantz S., Lange V. et al. Impact of myocardial fibrosis in patients with symptomatic severe aortic stenosis. Circulation. 2009;120(7):577–584. DOI: 10.1161/CIRCULATIONAHA.108.847772.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Fung M.J., Thomas L., Leung D.Y. Alterations in layer-specific left ventricular global longitudinal and circumferential strain in patients with aortic stenosis: a comparison of aortic valve replacement versus conservative management over a 12-month period. J. Am. Soc. Echocardiogr. 2019;32(1):92–101. DOI: 10.1016/j.echo.2018.07.015.</mixed-citation><mixed-citation xml:lang="en">Fung M.J., Thomas L., Leung D.Y. Alterations in layer-specific left ventricular global longitudinal and circumferential strain in patients with aortic stenosis: a comparison of aortic valve replacement versus conservative management over a 12-month period. J. Am. Soc. Echocardiogr. 2019;32(1):92–101. DOI: 10.1016/j.echo.2018.07.015.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Ng A.C., Delgado V., Bertini M., Antoni M.L., van Bommel R.J., van Rijnsoever E.P. et al. Alterations in multidirectional myocardial functions in patients with aortic stenosis and preserved ejection fraction: a two-dimensional speckle tracking analysis. Eur. Heart J. 2011;32(12):1542–1550. DOI: 10.1093/eurheartj/ehr084.</mixed-citation><mixed-citation xml:lang="en">Ng A.C., Delgado V., Bertini M., Antoni M.L., van Bommel R.J., van Rijnsoever E.P. et al. Alterations in multidirectional myocardial functions in patients with aortic stenosis and preserved ejection fraction: a two-dimensional speckle tracking analysis. Eur. Heart J. 2011;32(12):1542–1550. DOI: 10.1093/eurheartj/ehr084.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Galli E., Leguerrier A., Flecher E., Leclercq C., Donal E. Increased valvulo-arterial impedance differently impacts left ventricular longitudinal, circumferential, and radial function in patients with aortic stenosis: A speckle tracking echocardiography study. Echocardiography. 2017;34(1):37–43. DOI: 10.1111/echo.13407.</mixed-citation><mixed-citation xml:lang="en">Galli E., Leguerrier A., Flecher E., Leclercq C., Donal E. Increased valvulo-arterial impedance differently impacts left ventricular longitudinal, circumferential, and radial function in patients with aortic stenosis: A speckle tracking echocardiography study. Echocardiography. 2017;34(1):37–43. DOI: 10.1111/echo.13407.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Naeim H.A., Abuelatta R., Alatawi F.O., Khedr L. Assessment of left ventricular mechanics in patients with severe aortic stenosis after transcatheter aortic valve implantation: 2-D speckle tracking imaging study. J. Saudi Heart Assoc. 2020;32(2):248–255. DOI: 10.37616/2212-5043.1065.</mixed-citation><mixed-citation xml:lang="en">Naeim H.A., Abuelatta R., Alatawi F.O., Khedr L. Assessment of left ventricular mechanics in patients with severe aortic stenosis after transcatheter aortic valve implantation: 2-D speckle tracking imaging study. J. Saudi Heart Assoc. 2020;32(2):248–255. DOI: 10.37616/2212-5043.1065.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Shiino K., Yamada A., Scalia G.M., Putrino A., Chamberlain R., Poon K. et al. Early changes of myocardial function after transcatheter aortic valve implantation using multilayer strain speckle tracking echocardiography. Am. J. Cardiol. 2019;123(6):956–960. DOI: 10.1016/j.amjcard.2018.12.008.</mixed-citation><mixed-citation xml:lang="en">Shiino K., Yamada A., Scalia G.M., Putrino A., Chamberlain R., Poon K. et al. Early changes of myocardial function after transcatheter aortic valve implantation using multilayer strain speckle tracking echocardiography. Am. J. Cardiol. 2019;123(6):956–960. DOI: 10.1016/j.amjcard.2018.12.008.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Delgado M., Ruiz M., Mesa D., de Lezo Cruz Conde J.S., Pan M., López J. et al. Early improvement of the regional and global ventricle function estimated by two-dimensional speckle tracking echocardiography after percutaneous aortic valve implantation speckle tracking after CoreValve implantation. Echocardiography. 2013;30(1):37–44. DOI: 10.1111/j.1540-8175.2012.01808.x.</mixed-citation><mixed-citation xml:lang="en">Delgado M., Ruiz M., Mesa D., de Lezo Cruz Conde J.S., Pan M., López J. et al. Early improvement of the regional and global ventricle function estimated by two-dimensional speckle tracking echocardiography after percutaneous aortic valve implantation speckle tracking after CoreValve implantation. Echocardiography. 2013;30(1):37–44. DOI: 10.1111/j.1540-8175.2012.01808.x.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Schattke S., Baldenhofer G., Prauka I., Zhang K., Laule M., Stangl V. et al. Acute regional improvement of myocardial function after interventional transfemoral aortic valve replacement in aortic stenosis: a speckle tracking echocardiography study. Cardiovasc. Ultrasound. 2012;10:15. DOI: 10.1186/1476-7120-10-15.</mixed-citation><mixed-citation xml:lang="en">Schattke S., Baldenhofer G., Prauka I., Zhang K., Laule M., Stangl V. et al. Acute regional improvement of myocardial function after interventional transfemoral aortic valve replacement in aortic stenosis: a speckle tracking echocardiography study. Cardiovasc. Ultrasound. 2012;10:15. DOI: 10.1186/1476-7120-10-15.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Lang R.M., Badano L.P., Mor-Avi V., Afilalo J., Armstrong A., Ernande L. et al. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. J. Am. Soc. Echocardiogr. 2015;28(1):1–39.t14. DOI: 10.1016/j.echo.2014.10.003.</mixed-citation><mixed-citation xml:lang="en">Lang R.M., Badano L.P., Mor-Avi V., Afilalo J., Armstrong A., Ernande L. et al. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. J. Am. Soc. Echocardiogr. 2015;28(1):1–39.t14. DOI: 10.1016/j.echo.2014.10.003.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Nagueh S.F., Smiseth O.A., Appleton C.P., Byrd B.F. 3rd, Dokainish H., Edvardsen T. et al. Recommendations for the evaluation of left ventricular diastolic function by echocardiography: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. Eur. Heart J. Cardiovasc. Imaging. 2016;17(12):1321–1360. DOI: 10.1093/ehjci/jew082.</mixed-citation><mixed-citation xml:lang="en">Nagueh S.F., Smiseth O.A., Appleton C.P., Byrd B.F. 3rd, Dokainish H., Edvardsen T. et al. Recommendations for the evaluation of left ventricular diastolic function by echocardiography: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. Eur. Heart J. Cardiovasc. Imaging. 2016;17(12):1321–1360. DOI: 10.1093/ehjci/jew082.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Kempny A., Diller G.P., Kaleschke G., Orwat S., Funke A., Radke R. et al. Longitudinal left ventricular 2D strain is superior to ejection fraction in predicting myocardial recovery and symptomatic improvement after aortic valve implantation. Int. J. Cardiol. 2013;167(5):2239–2243. DOI: 10.1016/j.ijcard.2012.06.012.</mixed-citation><mixed-citation xml:lang="en">Kempny A., Diller G.P., Kaleschke G., Orwat S., Funke A., Radke R. et al. Longitudinal left ventricular 2D strain is superior to ejection fraction in predicting myocardial recovery and symptomatic improvement after aortic valve implantation. Int. J. Cardiol. 2013;167(5):2239–2243. DOI: 10.1016/j.ijcard.2012.06.012.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Osnabrugge R.L., Mylotte D., Head S.J., Van Mieghem N.M., Nkomo V.T., LeReun C.M. et al. Aortic stenosis in the elderly: disease prevalence and number of candidates for transcatheter aortic valve replacement: a meta-analysis and modeling study. J. Am. Coll. Cardiol. 2013;62(11):1002–1012. DOI: 10.1016/j.jacc.2013.05.015.</mixed-citation><mixed-citation xml:lang="en">Osnabrugge R.L., Mylotte D., Head S.J., Van Mieghem N.M., Nkomo V.T., LeReun C.M. et al. Aortic stenosis in the elderly: disease prevalence and number of candidates for transcatheter aortic valve replacement: a meta-analysis and modeling study. J. Am. Coll. Cardiol. 2013;62(11):1002–1012. DOI: 10.1016/j.jacc.2013.05.015.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Spethmann S., Dreger H., Baldenhofer G., Stüer K., Saghabalyan D., Müller E. et al. Short-term effects of transcatheter aortic valve implantation on left atrial mechanics and left ventricular diastolic function. J. Am. Soc. Echocardiogr. 2013;26(1):64–71.e2. DOI: 10.1016/j.echo.2012.10.002.</mixed-citation><mixed-citation xml:lang="en">Spethmann S., Dreger H., Baldenhofer G., Stüer K., Saghabalyan D., Müller E. et al. Short-term effects of transcatheter aortic valve implantation on left atrial mechanics and left ventricular diastolic function. J. Am. Soc. Echocardiogr. 2013;26(1):64–71.e2. DOI: 10.1016/j.echo.2012.10.002.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Sarı C., Aslan A.N., Baştuğ S., Akçay M., Akar Bayram N., Bilen E. et al. Immediate recovery of the left atrial and left ventricular diastolic function after transcatheter aortic valve implantation: A transesophageal echocardiography study. Cardiol. J. 2016;23(4):449–455. DOI: 10.5603/CJ.a2016.0030.</mixed-citation><mixed-citation xml:lang="en">Sarı C., Aslan A.N., Baştuğ S., Akçay M., Akar Bayram N., Bilen E. et al. Immediate recovery of the left atrial and left ventricular diastolic function after transcatheter aortic valve implantation: A transesophageal echocardiography study. Cardiol. J. 2016;23(4):449–455. DOI: 10.5603/CJ.a2016.0030.</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>
