نتایج جستجو برای: aortic prosthesis

تعداد نتایج: 138157  

Journal: :The Turkish journal of pediatrics 2008
Selman Vefa Yildirim Ayten Gümüş Isa Coşkun Riza Türköz

Quadricuspid aortic valve is a rare congenital condition that occurs not only as an isolated anomaly, but also with other cardiac defects. We describe a 10-year-old boy whose aortic stenosis was diagnosed during infancy. Transthoracic echocardiography revealed dilation of the left ventricle, valvular and subvalvular aortic stenosis, bicuspid aortic valve, aortic regurgitation, and mitral valve ...

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: :JACC. Cardiovascular interventions 2013
Polykarpos C Patsalis Fadi Al-Rashid Till Neumann Björn Plicht Heike A Hildebrandt Daniel Wendt Matthias Thielmann Heinz G Jakob Gerd Heusch Raimund Erbel Philipp Kahlert

OBJECTIVES This study sought to evaluate whether supra-aortic angiography during preparatory balloon aortic valvuloplasty (BAV) improves valve sizing. BACKGROUND Current recommendations for valve size selection are based on annular measurements by transesophageal echocardiography and computed tomography, but paravalvular aortic regurgitation (PAR) is a frequent problem. METHODS Data of 270 ...

2017
Bruno Alvares de Azevedo Gomes Gabriel Cordeiro Camargo Jorge Roberto Lopes dos Santos Luis Fernando Alzuguir Azevedo Ângela Ourivio Nieckele Aristarco Gonçalves Siqueira-Filho Glaucia Maria Moraes de Oliveira

Background Due to the nature of the percutaneous prosthesis deployment process, a variation in its final position is expected. Prosthetic valve placement will define the spatial location of its effective orifice in relation to the aortic annulus. The blood flow pattern in the ascending aorta is related to the aortic remodeling process, and depends on the spatial location of the effective orific...

2016
Sina Ali Yakup Alsancak Mustafa Duran Mehmet Bilge

A 73-year old woman who had previous mechanical mitral valve replacement (MVR) presented with worsening symptoms of dyspnea. Echocardiographic evaluation revealed severe aortic stenosis with calcified trileaflet aortic valve (aortic valve area was 0.9 cm2, mean gradient was 42 mm Hg with 45% ejection fraction). Society of Thoracic Surgeons score of the patient was 8.9%, mean logistic European s...

2017
Róbert Novotný Jaroslav Hlubocký Tomáš Kovárník Petr Mitáš Zuzana Hlubocka Jan Rulíšek Sevim Ismihan Gulmez Shubjiwan Kaur Ghotra Jaroslav Lindner

We are presenting a case report of failed valve-in-valve treatment of severe aortic stenosis. A control ultrasonography after TAVI implantation revealed a severe aortic regurgitation of the graft which was subsequently unresolved with postimplantation dilatation. Second TAVI was implanted with cranial dislocation to the aortic root. Patient underwent a CT examination to clarify the TAVI in TAVI...

2016
Said Benlamkaddem Adnane Berdai Smael Labib Mustapha Harandou

Background. Heart disease is the leading cause of nonobstetric mortality in pregnant women. Because of high risk, medical management represents the first line of treatment. However, when medical treatment fails, cardiac surgery becomes necessary. Case Presentation. A 27-year-old female who underwent successfully cardiac surgery three times within 3 years. At the first time, she had an aortic va...

Journal: :Journal of biomechanics 2007
P N Watton X Y Luo X Wang G M Bernacca P Molloy D J Wheatley

Current artificial heart valves either have limited lifespan or require the recipient to be on permanent anticoagulation therapy. In this paper, effort is made to assess a newly developed bileaflet valve prosthesis made of synthetic flexible leaflet materials, whose geometry and material properties are based on those of the native mitral valve, with a view to providing superior options for mitr...

2017
Wenzong Luo Xinxin Wang Jing Li Yun Mu Yiming Ni

BACKGROUND Intermittent stuck valve after mechanical valve replacement surgery is a very rare and severe complication. CASE SUMMARY We present 1 case of a 53-year-old woman after aortic valve replacement for severe aortic valve stenosis combined with hypertrophy septum. She was diagnosed with intermittent stuck valve only 1 day after surgery by clinical symptoms, intraoperative transoesophage...

Journal: :The heart surgery forum 2005
Maqsood M Elahi Khalid A Osman Manoj Bhandari Ramana Rao V Dhannapuneni

BACKGROUND The incidence of conduction disorders requiring permanent pacing (PPM) in patients operated on for aortic valve replacement (AVR) has been reported to be 5.7%. However, perioperative risk predictors for PPM following AVR are not well characterized and debate exists regarding selection of the prosthesis-type most likely to minimize this incidence. The aim of the study was to assess wh...

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