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Case Reports
. 2008;35(3):324-6.

Accessory mitral valve without left ventricular outflow tract obstruction in an adult

Juan Carlos Rozo  1 , Dajhana Medina, Cesar Guerrero, Ana Maria Calderon, Andrés Mesa
Affiliations
Case Reports

Accessory mitral valve without left ventricular outflow tract obstruction in an adult

Juan Carlos Rozo et al. Tex Heart Inst J. 2008.

Abstract

Accessory mitral valve is a rare congenital abnormality and an unusual cause of subvalvular obstruction of the left ventricular outflow tract. Accessory mitral valves are usually detected in children due to symptomatic obstruction; isolated nonobstructive accessory mitral valve is rarely seen in adults. We describe the echocardiographic diagnosis of accessory mitral valve as an isolated congenital anomaly not associated with a substantial degree of obstruction of the left ventricular outflow tract in an asymptomatic adult patient. This case highlights the importance of transthoracic and transesophageal echocardiography in the diagnosis and follow-up of this uncommon congenital anomaly.

Keywords: Accessory mitral valve; echocardiography; heart murmurs; heart valve diseases/congenital/complications; left ventricular outflow obstruction/etiology/ultrasonography; mitral valve abnormalities/ultrasonography.

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Figures

None
Fig. 2 Two-dimensional color-flow Doppler echocardiogram (long-axis view) of the left ventricle at 140° shows color aliasing (high flow velocity) (arrow) without significant obstruction at the left ventricular outflow tract. AML = anterior mitral leaflet; Ao = aorta; LA = left atrium; LV = left ventricle; RV = right ventricle Real-time motion image is available at texasheart.org/journal.
None
Fig. 1 Multiplane transesophageal echocardiogram (long-axis view) of the left ventricle at 132° shows the accessory mitral valve (arrow) attached to the ventricular side of the proximal part of the anterior leaflet of the mitral valve, moving into the left ventricular outflow tract during systole. AML = anterior mitral leaflet; Ao = aorta; LA = left atrium; LV = left ventricle; RV = right ventricle Real-time motion image is available at texasheart.org/journal.
See this image and copyright information in PMC

Comment in

  • Two cases of accessory valves.
    Stainback RF. Stainback RF. Tex Heart Inst J. 2008;35(3):323. Tex Heart Inst J. 2008. PMID: 18941606 Free PMC article. No abstract available.

References

    1. Chevers N. Observations on diseases of the orifice and valves of the aorta. Guy's Hosp Rep 1842(7):387–452.
    1. MacLean J, Culligan J, Kane D. Subaortic stenosis due to accessory tissue on the mitral valve. J Thorac Cardiovasc Surg 1963;45:382–7.
    1. Prifti E, Frati G, Bonacchi M, Vanini V, Chauvaud S. Accessory mitral valve tissue causing left ventricular outflow tract obstruction: case reports and literature review. J Heart Valve Dis 2001;10(6):774–8. - PubMed
    1. Rovner A, Thanigaraj S, Perez JE. Accessory mitral valve in an adult population: the role of echocardiography in diagnosis and management. J Am Soc Echocardiogr 2005;18(5):494–8. - PubMed
    1. Prifti E, Bonacchi M, Bartolozzi F, Frati G, Leacche M, Vanini V. Postoperative outcome in patients with accessory mitral valve tissue. Med Sci Monit 2003;9(6):RA126–33. - PubMed

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