نتایج جستجو برای: aortic valve

تعداد نتایج: 181629  

2012
Júlia Čanádyová Aleš Mokráček

A standard approach in the surgical treatment of severe aortic regurgitation and/or aortic root dilatation is Bentall procedure, it means replacement of the aortic valve and ascending aorta with a composite graft including mechanical or biological valve. The original technique described by Bentall and De Bono in 1968 (5). This is a „safe“ method with low mortality, but patients have to accept t...

Journal: :Revista espanola de cardiologia 2007
Irene Méndez Belén Prado Pastora Gallego Antonio Castro José M Barquero Gerardo Brunstein Carlos Infantes José M Cruz-Fernández

Bicuspid aortic valve is the most common form of congenital heart disease. It is associated with both valvular pathology and aortic disease. Aortic regurgitation caused by a bicuspid aortic valve can be corrected by surgical valve repair, which has good short-term results. However, the significant rate of aortic regurgitation recurrence found on long-term follow-up remains a problem, partly bec...

2007
Diana Aicher Carmen Urbich Andreas Zeiher Stefanie Dimmeler Hans-Joachim Schäfers

Background. The pathogenesis of ascending aortic di-latation in the presence of a bicuspid valve is discussed controversially. Recent experimental evidence suggests that the expression of endothelial nitric oxide synthase (eNOS) may have an influence on aortic valve anatomy and aneurysmal dilatation of the aorta. We investigated the relationship among eNOS expression, valve anatomy, and aortic ...

Journal: :Interactive cardiovascular and thoracic surgery 2008
Paul P Urbanski Stefan Frank

Achievement of optimal valve geometry in valve-sparing aortic root repairs is a prerequisite for favorable valve function and, therefore, the simplification of these procedures is of utmost importance. The aim of the study was to determine the feasibility of the new vascular graft for aortic valve reimplantation technique and evaluate the early and intermediate functional results. Five patients...

2015
Cenk Sarı Serdal Baştuğ Hüseyin Ayhan Hacı Ahmet Kasapkara Tahir Durmaz Telat Keleş Murat Akçay Abdullah Nabi Aslan Nihal Akar Bayram Engin Bozkurt

INTRODUCTION Transcatheter aortic valve implantation for severe symptomatic aortic stenosis in patients with a previous mitral valve prosthesis is technically challenging, and pre-procedural comprehensive assessment of these patients before transcatheter aortic valve implantation is vital for an uncomplicated and successful procedure. AIM We want to share our experience with transcatheter aor...

Journal: :European heart journal 2002
C Piper R Hetzer R Körfer R Bergemann D Horstkotte

AIMS Secondary involvement of the mitral valve is well documented in primary aortic valve endocarditis. A poorly considered, but probably important causative mechanism, involving both left-sided valves, is 'mitral kissing vegetation'. This results from large aortic vegetations prolapsing into the left ventricular outflow tract and making contact with the ventricular aspect of the anterior mitra...

2013
Mustafa Tarık Ağaç Levent Korkmaz Hüseyin Bektas Zeydin Acar Hakan Erkan Ibrahim Halil Kurt Adem Adar Şükrü Çelik

OBJECTIVE To investigate the presence of myocardial fibrosis determined by fragmented QRS in patients with severe aortic valve stenosis. SUBJECTS AND METHODS Eighty-seven consecutive patients with severe aortic valve stenosis and 83 age- and gender-matched control subjects were enrolled into this study. Severe aortic valve stenosis was defined as an aortic valve area <1 cm(2), a Vmax >4 m/s, ...

Journal: :Circulation 2009
Raul Moreno David Dobarro Esteban López de Sá Mario Prieto Carmen Morales Luis Calvo Orbe Isidro Moreno-Gomez David Filgueiras Angel Sanchez-Recalde Guillermo Galeote Santiago Jiménez-Valero José-Luis Lopez-Sendon

Transcatheter aortic valve implantation is being established as an alternative treatment for some patients with symptomatic severe aortic stenosis who are not considered suitable for surgical aortic valve replacement because of prohibitive surgical risk.1–3 One of the potential complications is complete atrioventricular block requiring definitive pacemaker implantation. This complication occurs...

2011
Osman Ozdemir Rana Olgunturk Serdar Kula Fatma Sedef Tunaoglu

BACKGROUND The typical cardiac manifestations of Marfan syndrome are aortic regurgitation with progressive dilatation of the aortic root, which may cause dissection and rupture of the ascending aorta, mitral valve prolapse and mitral valve regurgitation. In this study, we aimed to show echocardiographic findings in 11 patients with Marfan syndrome. METHODS Diagnosis of Marfan syndrome was bas...

Journal: :European heart journal cardiovascular Imaging 2014
Yasir Parviz William Parker Peter Brown John N West

Bicuspid aortic valve configuration and aortopathy pattern might represent different pathophysiologic sub-strates. A, Byers PH et al. The bicuspid aortic valve: an integrated phenotypic classification of leaflet morphology and aortic root shape. Association of Bicuspid aortic valve morphology and aortic root dimensions: a sub-study of the aortic stenosis progression observation measuring effect...

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