Results 11 to 20 of about 13,185 (241)

Laser Doppler anemometry measurements of steady flow through two bi-leaflet prosthetic heart valves

Brazilian Journal of Cardiovascular Surgery, 2013
INTRODUCTION: In vitro hydrodynamic characterization of prosthetic heart valves provides important information regarding their operation, especially if performed by noninvasive techniques of anemometry. Once velocity profiles for each valve are provided,
Ovandir Bazan, Jayme Pinto Ortiz, Francisco Ubaldo Vieira Junior, Reinaldo Wilson Vieira, Nilson Antunes, Fabio Bittencourt Dutra Tabacow, Eduardo Tavares Costa, Orlando Petrucci Junior   +7 more
doaj   +3 more sources

Starr-Edwards Mechanical Prosthesis for More Than 53 Years in the Mitral Position: A Case Report

International Journal of the Cardiovascular Academy
Valvular heart disease affects approximately 2.5% of the global population. Starr-Edwards (SE) prosthetic valves are commonly used in the aortic and mitral positions, with reported durability extending up to 40 years.
Roberto Carlos Macías Cervantes, Luis Miguel Alfonso Fernandez Gutierrez, Enrique Arana Martínez   +2 more
doaj   +2 more sources

Cinefluoroscopy for assessment of mechanical heart valves with suspected dysfunction

Frontiers in Cardiovascular Medicine, 2022
BackgroundMechanical heart valves (MHVs) are preferred prosthesis types in many, especially younger patients who need surgical valve replacement.
Anselm A. Derda, Marvin M. Marquardt, Andreas Martens, Elion Mirena, Jens Vogel-Claussen, Tibor Kempf, Axel Haverich, Johann Bauersachs, L. Christian Napp   +8 more
doaj   +2 more sources

Indications for echocardiography of replacement heart valves: a joint statement from the British Heart Valve Society and British Society of Echocardiography [PDF]

Echo Research and Practice, 2019
Echocardiography plays a vital role in the follow-up of patients with replacement heart valves. However, there is considerable variation in international guidelines regarding the recommended time points after implantation at which routine ...
John B Chambers, Madalina Garbi, Norman Briffa, Vishal Sharma, Richard P Steeds   +4 more
doaj   +2 more sources

Evolving technology: the TRIFLO tri-leaflet mechanical valve without oral anticoagulation: a potential major innovation in valve surgery

Frontiers in Cardiovascular Medicine, 2023
The aortic valve is the most frequently diseased valve and aortic stenosis (AS) is the most prevalent valvular heart disease in developed countries. The diseased native aortic valve can be replaced by either a biological or mechanical valve prosthesis ...
Thierry Carrel, Paul R. Vogt, Dominique Obrist, Hartzell Schaff   +3 more
doaj   +1 more source

Mechanical heart valve prosthesis in pregnancy – multicenter retrospective observational study [PDF]

, 2012
BackgroundMechanical heart valves carry significant risk during pregnancy.AimTo assess the risk of pregnancy and delivery for mother and child in women with mechanical heart valve prosthesis.MethodsMulticenter retrospective observational study of women ...
Ostřanský, Jiří, Zatočil, Tomáš, Vavera, Zdeněk, Rubáček, Miroslav, Lhotský, Jan, Popelová, Jana, Gebauer, Roman, Paleček, Tomáš   +7 more
core   +1 more source

Tissue Heart Valve Replacement at BSMMU- Initial Experience with Two Cases

Bangabandhu Sheikh Mujib Medical University Journal, 2010
Research on prosthesis to replace diseased heart valves began almost simultaneously with mechanical valves which are durable but with inherent thromboembolic complication requiring life-long anticoagulant therapy and tissue valves which are more prone to
Rezwanul Hoque, Mostafa Nuruzzaman, Sabrina Sharmeen Husain, Md Anwarul Islam, Magfur Rahman, Md Aftabuddin   +5 more
doaj   +1 more source

Transcatheter Aortic Valve Implantation in Dialysis Patients [PDF]

, 2012
Background/Aims: Transcatheter aortic valve implantation (TAVI) has emerged as a new therapeutic option for high-risk patients. However, dialysis patients were excluded from all previous studies.
Wessely, Matthias, Schoenermarck, Ulf, Rau, Simon, Fischereder, Michael, Steinbeck, Gerhard, Kupatt, Christian, Lange, Philipp   +6 more
core   +1 more source

Surgical pulmonary valve replacement at a tertiary adult congenital heart centre in the current era

International Journal of Cardiology Congenital Heart Disease, 2022
Background: Surgical pulmonary valve replacement (PVR) is the standard cardiac operation in adult patients with congenital heart disease (ACHD). We report recent experience at a large tertiary centre and examine the impact of prosthesis type on outcomes.
Kana Kubota, Gerhard-Paul Diller, Aleksander Kempny, Andreas Hoschtitzky, Yasushi Imai, Masaaki Kawada, Darryl Shore, Michael A. Gatzoulis   +7 more
doaj   +1 more source

Porcine pulmonary valve decellularization with NaOH-based vs detergent process: preliminary in vitro and in vivo assessments

Journal of Cardiothoracic Surgery, 2018
Background Glutaraldehyde fixed xenogeneic heart valve prosthesis are hindered by calcification and lack of growth potential. The aim of tissue decellularization is to remove tissue antigenicity, avoiding the use of glutaraldehyde and improve valve ...
Mathieu van Steenberghe, Thomas Schubert, Sébastien Gerelli, Caroline Bouzin, Yves Guiot, Daela Xhema, Xavier Bollen, Karim Abdelhamid, Pierre Gianello   +8 more
doaj   +1 more source