Acute mitral valve dysfunction due to leaflet escape in a Tri-technologies bileaflet mechanical valve.
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.
Cianciulli
Tomás Francisco
TF
Researchers of the Secretary of Health, Government of the City of Buenos Aires, Argentina. tcianciulli@fibertel.com.ar
Lax
Jorge Alberto
JA
Saccheri
María Cristina
MC
Redruello
Héctor Jorge
HJ
Belforte
Sandro Mario
SM
Picone
Victorio Próspero
VP
Prezioso
Horacio Alberto
HA
D000208:Acute Disease; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000473:pathology*; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D011475:Prosthesis Failure; D012770:Shock, Cardiogenic / Q000209:etiology; D014463:Ultrasonography