{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T23:18:26Z","timestamp":1780528706142,"version":"3.54.1"},"reference-count":7,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2021,12,1]],"date-time":"2021-12-01T00:00:00Z","timestamp":1638316800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,12,18]],"date-time":"2021-12-18T00:00:00Z","timestamp":1639785600000},"content-version":"vor","delay-in-days":17,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["JA Clin Rep"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>Mitral regurgitation after transcatheter aortic valve implantation (TAVI) can be caused by various etiologies.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Case presentation<\/jats:title>\n                <jats:p>An 81-year-old woman with mild mitral regurgitation and complete right bundle branch block was scheduled to undergo TAVI under general anesthesia. After the deployment of the prosthetic valve, electrocardiography depicted a wide QRS wave and bradycardia, suggestive of complete atrioventricular block. Although there was no lesion indicative of tissue injury to the valve itself, worsening of mitral regurgitation was identified on transesophageal echocardiography. The hemodynamic condition was stable, and no additional procedure was performed. Electrocardiography depicted a return to a narrow QRS wave 3 days after surgery, and the mitral regurgitation appeared comparable to the preoperative grade. We assumed that the worsening of mitral regurgitation was caused by dyssynchrony in the left ventricle due to the conduction disorder.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>Mitral regurgitation after TAVI needs observation, including the determination of the etiology and treatment principle.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s40981-021-00491-3","type":"journal-article","created":{"date-parts":[[2021,12,18]],"date-time":"2021-12-18T07:02:44Z","timestamp":1639810964000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Temporary worsening of mitral regurgitation due to conduction disturbance after transcatheter aortic valve implantation"],"prefix":"10.1186","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8336-3955","authenticated-orcid":false,"given":"Takeyuki","family":"Sajima","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taichi","family":"Onimaru","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shigehito","family":"Sawamura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,12,18]]},"reference":[{"issue":"7","key":"491_CR1","doi-asserted-by":"publisher","first-page":"942","DOI":"10.1016\/j.amjcard.2015.01.022","volume":"115","author":"T Chakravarty","year":"2015","unstructured":"Chakravarty T, Van Belle E, Jilaihawi H, Noheria A, Testa L, Bedogni F, et al. Meta-analysis of the impact of mitral regurgitation on outcomes after transcatheter aortic valve implantation. Am J Cardiol. 2015;115(7):942\u20139.","journal-title":"Am J Cardiol"},{"key":"491_CR2","doi-asserted-by":"publisher","first-page":"526","DOI":"10.1016\/j.jjcc.2016.02.001","volume":"67","author":"R Fojt","year":"2016","unstructured":"Fojt R, Mo\u0165ovsk\u00e1 Z, Budera P, Mal\u00fd M, Straka Z. Prognostic impact and change of concomitant mitral regurgitation after surgical or transcatheter aortic valve replacement for aortic stenosis. J Cardiol. 2016;67:526\u201330.","journal-title":"J Cardiol"},{"key":"491_CR3","doi-asserted-by":"publisher","first-page":"716","DOI":"10.1136\/heartjnl-2019-316238","volume":"106","author":"O Chehab","year":"2020","unstructured":"Chehab O, Roberts-Thomson R, Ng Yin Ling C, Marber M, Prendergast BD, Rajani R, et al. Secondary mitral regurgitation: pathophysiology, proportionality, and prognosis. Heart. 2020;106:716\u201323.","journal-title":"Heart."},{"key":"491_CR4","doi-asserted-by":"publisher","first-page":"557","DOI":"10.1093\/ejechocard\/jer086","volume":"12","author":"JL Zamorano","year":"2011","unstructured":"Zamorano JL, Badano LP, Brue C, Chan KL, Goncalves A, Harn RT, et al. EAE\/ASE recommendations for the use of echocardiography in new transcatheter interventions for valvular heart disease. Eur J Echocardiogr. 2011;12:557\u201384.","journal-title":"Eur J Echocardiogr"},{"key":"491_CR5","doi-asserted-by":"publisher","first-page":"1049","DOI":"10.1161\/CIRCULATIONAHA.117.028352","volume":"136","author":"V Auffret","year":"2017","unstructured":"Auffret V, Puri R, Urena M, Chamandi C, Rodriguez-Gabella T, Philippon F, et al. Conduction disturbances after transcatheter aortic valve replacement: current status and future perspectives. Circulation. 2017;136:1049\u201369.","journal-title":"Circulation."},{"issue":"42","key":"491_CR6","doi-asserted-by":"publisher","first-page":"3427","DOI":"10.1093\/eurheartj\/ehab364","volume":"2021","author":"M Glikson","year":"2021","unstructured":"Glikson M, Nielsen JC, Kronborg MB, Michowitz Y, Auricchio A, Barbash IM, et al. ESC Guidelines on cardiac pacing and cardiac resynchronization therapy Developed by the Task Force on cardiac pacing and cardiac resynchronization therapy of the European Society of Cardiology (ESC) With the special contribution of the European Heart Rhythm Association (EHRA). Eur Heart J. 2021;2021(42):3427\u2013520.","journal-title":"Eur Heart J"},{"key":"491_CR7","doi-asserted-by":"publisher","first-page":"1292","DOI":"10.1053\/j.jvca.2020.08.045","volume":"35","author":"JA Nelson","year":"2021","unstructured":"Nelson JA, Espinosa R, Michelena H, Rehfeldt K. Acute severe functional mitral regurgitation after non-mitral valve cardiac surgery-Left ventricular dyssynchrony as a potential mechanism. J Cardiothorac Vasc Anesth. 2021;35:1292\u20138.","journal-title":"J Cardiothorac Vasc Anesth"}],"container-title":["JA Clinical Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s40981-021-00491-3.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s40981-021-00491-3\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s40981-021-00491-3.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,12,18]],"date-time":"2021-12-18T07:07:00Z","timestamp":1639811220000},"score":1,"resource":{"primary":{"URL":"https:\/\/jaclinicalreports.springeropen.com\/articles\/10.1186\/s40981-021-00491-3"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,12]]},"references-count":7,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2021,12]]}},"alternative-id":["491"],"URL":"https:\/\/doi.org\/10.1186\/s40981-021-00491-3","relation":{},"ISSN":["2363-9024"],"issn-type":[{"value":"2363-9024","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,12]]},"assertion":[{"value":"29 August 2021","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"2 December 2021","order":2,"name":"revised","label":"Revised","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"4 December 2021","order":3,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"18 December 2021","order":4,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"Not applicable.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Written informed consent was obtained from the patient for the publication of this case report.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interest.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"87"}}