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      Accessory Mitral Valve Tissue: An Unusual Echocardiographic Finding

      case-report

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          Graphical abstract

          Highlights

          • •

            AMVT is a rare congenital cardiac malformation.

          • •

            AMVT can be an incidental finding.

          • •

            Endocarditis and embolic events are known complications.

          • •

            Transthoracic and transesophageal echocardiography are fundamental for its diagnosis.

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          Most cited references12

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          Accessory mitral valve in an adult population: the role of echocardiography in diagnosis and management.

          S Thanigaraj, Aleksandr Rovner, E. Perez Codina (2005)
          Accessory mitral valve is a rare congenital abnormality and is an unusual cause for subvalvular left ventricular outflow tract (LVOT) obstruction. It is detected first in children and is very rarely noticed in adults. The most common clinical presentation is symptomatic LVOT obstruction. We present a case series of 5 adult patients with varying clinical presentations in which the accessory mitral valve was diagnosed using echocardiography. Three patients presented with varying degrees of symptomatic LVOT obstruction, one presented with recurrent transient ischemic attack and stroke, and one patient was incidentally diagnosed during echocardiography to exclude endocarditis. Accessory mitral valve should be suggested in patients with LVOT obstruction.
          Article 0 comments Cited 15 times – based on 0 reviews     Review now
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            Accessory mitral valve tissue manifesting cerebrovascular thromboembolic event in a 34-year-old woman

            Ertan Yetkin, Hasan Turhan, Ramazan Atak … (2003)
            Accessory mitral valve tissue is an extremely rare congenital cardiac anomaly. Most of the cases reported in the medical literature were associated with left ventricular outflow tract obstruction. The majority of cases of accessory mitral valve tissue, causing left ventricular outflow tract obstruction, occur in association with other congenital cardiac anomalies. In this reported case, a patient with accessory mitral valve tissue complicated with thromboembolic cerebrovascular event is presented. The patient also had an associated idiopathic hypertrophic subaortic stenosis.
            Article 0 comments Cited 6 times – based on 0 reviews     Review now
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              Left ventricular outflow tract obstruction caused by accessory mitral valve tissue.

              Randall W McKenna, Rajan Sharma, P Elliott … (2006)
              This report describes the echocardiographic diagnosis of accessory mitral valve tissue causing left ventricular outflow tract obstruction in a symptomatic man. The accessory tissue was surgically removed and the mitral valve replaced with complete resolution of left ventricular outflow tract gradient and symptoms. The case illustrates the importance of transthoracic and transesophageal echocardiography in the diagnosis and preoperative evaluation of this rare but treatable cause of subaortic valve obstruction.
              Article 0 comments Cited 5 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): CASE (Phila)
                Journal ID (iso-abbrev): CASE (Phila)
                Title: CASE : Cardiovascular Imaging Case Reports
                Publisher: Elsevier
                ISSN (Electronic): 2468-6441
                Publication date PMC-release: 10 November 2017
                Publication date Collection: February 2018
                Publication date (Electronic): 10 November 2017
                Volume: 2
                Issue: 1
                Pages: 9-11
                Affiliations
                [1]Echocardiography Division, Pro Cardiaco Hospital, Rio de Janeiro, Brazil
                Article
                Publisher ID: S2468-6441(17)30189-5
                DOI: 10.1016/j.case.2017.09.004
                PMC ID: 6058923
                SO-VID: cb5a6e11-0be7-4181-9397-5258c624bd70
                Copyright © 2017 by the American Society of Echocardiography. Published by Elsevier Inc.
                License:

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                Categories
                Subject: Mitral Mystery

                Keywords: accessory mitral valve tissue,echocardiography,mitral valve,congenital heart disease
                Data availability:
                Keywords: accessory mitral valve tissue, echocardiography, mitral valve, congenital heart disease

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