منابع مشابه
Dysfunction of bileaflet aortic prosthesis: accuracy of echocardiography versus fluoroscopy.
OBJECTIVES The authors sought to investigate the accuracy of transthoracic echocardiography (TTE)-derived parameters in the identification of bileaflet aortic prosthesis dysfunction, compared with fluoroscopy (FL). BACKGROUND Identification of bileaflet aortic prosthesis dysfunction is challenging, because high mean pressure gradient (MPG >20 mm Hg) is not proof of prosthetic obstruction (AVP...
متن کاملLeaflet migration in an aortic bileaflet mechanical prosthesis.
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متن کاملAccuracy of Doppler-echocardiographic parameters for the detection of aortic bileaflet mechanical prosthetic valve dysfunction.
AIMS In vitro and in vivo studies were performed to evaluate the diagnostic accuracy of the different Doppler-echocardiographic parameters proposed in the American Society of Echocardiography guidelines to identify dysfunction of bileaflet mechanical valves (BMV) in the aortic position. METHODS AND RESULTS Two models of BMV (St Jude HP, MCRI On-X) of different sizes (21;23;25;27 mm) were test...
متن کاملParoxysmal mechanical aortic valve prosthesis dysfunction: capturing the right moment
A 62-year-old female presented to the emergency room under suspicion of acute myocardial infarction. While shopping she suddenly experienced severe chest pain and nearly collapsed. Her medical history revealed aortic valve replacement (Medtronic Hall 22 mm) 8 years before and since 5 years repeated presentations to the emergency room because of intermittent chest pain. An initial electrocardiog...
متن کاملPreliminary results of 130 aortic valve replacements with a new mechanical bileaflet prosthesis: the Edwards MIRA valve.
We present a series of 130 consecutive patients operated for aortic valve replacement (AVR) using the standard MIRA prosthesis between January 1999 and March 2001. Most of the patients were male (sex ratio = 2) with a mean age of 61.5 +/- 9.5 years. The prosthesis was implanted using the continuous suture technique. The mean diameter of the implanted prostheses was 23 mm. This series was compos...
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ژورنال
عنوان ژورنال: JACC: Cardiovascular Imaging
سال: 2013
ISSN: 1936-878X
DOI: 10.1016/j.jcmg.2012.09.011