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European Journal of Echocardiography 2007 8(1):63-66; doi:10.1016/j.euje.2005.12.007
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Copyright © 2005, The European Society of Cardiology

Acute mitral valve dysfunction due to leaflet escape in a Tri-technologies bileaflet mechanical valve

Tomás Francisco Cianciullia,b,*, Jorge Alberto Laxb, María Cristina Saccheria,b, Héctor Jorge Redruellob, Sandro Mario Belfortec, Victorio Próspero Piconec and Horacio Alberto Preziosob

aResearchers of the Secretary of Health, Government of the City of Buenos Aires, Argentina
bDepartment of Cardiology, Hospital del Gobierno de la Ciudad de Buenos Aires "Dr. Cosme Argerich", Buenos Aires, Argentina
cDepartment of Cardiovascular Surgery, Hospital del Gobierno de la Ciudad de Buenos Aires "Dr. Cosme Argerich", Buenos Aires, Argentina

Received 7 September 2005; received in revised form 14 November 2005; accepted after revision 4 December 2005.

* Corresponding author. Department of Cardiology, Hospital del Gobierno de la Ciudad de Buenos Aires "Dr. Cosme Argerich", Av. Alte. Brown 240 (/C1155ADP), Buenos Aires, Argentina. Tel.: +54114801 5510; fax: +54114801 4157. tcianciulli{at}fibertel.com.ar


  Abstract

Acute prosthetic valve dysfunction due to leaflet escape is a mode of structural valve failure of mechanical prostheses which is associated with a high mortality. In this report, we describe the case of a 32-year-old patient, who underwent mitral valve replacement with a Tri-technologies bileaflet valve three years ago, and was admitted to the hospital on August 2005, in cardiogenic shock. He discontinued oral anticoagulation therapy four months ago. Transthoracic and transesophageal echocardiograms showed acute-onset massive mitral regurgitation with normal left ventricular function. The patient underwent emergency surgery, during which one leaflet was found to be absent and the other leaflet was fixed due to prosthetic thrombus.

Keywords: Leaflet escape; Acute prosthetic valve dysfunction; Tri-technologies


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T. F. Cianciulli, M. C. Saccheri, J. A. Lax, R. Guidoin, Z. Zhang, J. E. Guerra, H. A. Prezioso, and L. A. Vidal
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