Results 261 to 270 of about 137,505 (333)

A mitral valve prosthesis and a study of thrombosis on heart valves in dogs

Journal of Surgical Research, 1962
Summary o 1. A prosthesis for the atrioventricular heart valves has been designed which tends to imitate the natural mitral valve. The valve is cylindric in shape and is made of smooth polyurethane. The fixation ring is flexible, with Dacron mesh and polyurethane sponge provided for fixation. The sutures are shielded from the blood stream.
W, SEIDEL, T, AKUTSU, V, MIRKOVITCH, W J, KOLFF   +3 more
openaire   +2 more sources

Performance and outcomes of the SAPIEN 3 Ultra RESILIA transcatheter heart valve in the OCEAN-TAVI registry.

EuroIntervention
BACKGROUND Data on the performance of the latest-generation SAPIEN 3 Ultra RESILIA (S3UR) valve in patients who undergo transcatheter aortic valve replacement (TAVR) are scarce. AIMS We aimed to assess the clinical outcomes, including valve performance,
M. Yamamoto, Fumiaki Yashima, Shinichi Shirai, N. Tada, T. Naganuma, M. Yamawaki, F. Yamanaka, K. Mizutani, Masahiko Noguchi, Hiroshi Ueno, K. Takagi, Yohei Ohno, M. Izumo, H. Nishina, H. Suzuyama, Kazumasa Yamasaki, Kenji Nishioka, D. Hachinohe, Y. Fuku, Toshiaki Otsuka, M. Asami, Yusuke Watanabe, Kentaro Hayashida, on behalf of the OCEAN-TAVI investigators   +23 more
semanticscholar   +1 more source

[Heart valve prosthesis and pregnancy].

Archives des maladies du coeur et des vaisseaux, 1979
Sixteen pregnancies were followed up in 13 patients with prosthetic heart valves: 8 pregnancies went to term under oral anticoagulation, 4 under heparin and 4 without anticoagulation. 9 healthy normal children were delivered; there were 2 still births and 5 abortions.
M, Ben-Ismail, M, Fekih, M, Taktak, M, Chelli   +3 more
openaire   +3 more sources

Heart valve prosthesis

2012
A heart valve prosthesis comprising: a support structure comprising a framework deformable between an expanded state and a compressed state and vice versa; and a flow-control structure, supported by the support structure, for permitting blood flow in a first direction, and for restricting blood flow in a direction opposite to the first direction.
Gaetano Burriesci, Alexander M. Seifalian, Constantinos Zervides   +2 more
openaire   +1 more source

The porcine heart valve prosthesis.

Medical instrumentation, 1977
The development of the prosthetic heart valve has led to the evolution of cardiac intensive care units, a better understanding of cardiac function and biocompatible materials, and new surgical procedures. Initial efforts with formaldehyde-fixed valves did not have long-term success.
openaire   +1 more source

[Heart valve prosthesis, pregnancy and anticoagulant therapy].

Minerva ginecologica, 1991
The reproductive possibilities of cardiopathic patients with cardiac valvular prostheses have greatly improved in the past forty years. The correct management of this risk pregnancies remains a problem, however, especially as regards the chronic anticoagulant treatment to which these patients are subjected.
CASTINO PM, ACTIS DATO A., REVELLI, Alberto, PORRO MC, ACTIS DATO G.   +4 more
openaire   +2 more sources

Anticoagulant therapy and heart valve prosthesis

1994
The success of current heart valve surgery is largely due to the development of valve prostheses to replace damaged native valves. Since 1960, when Starr performed the first successful mitral valve replacement with a caged ball prostheses [2], some 60 different prosthesis have been developed in 30 years. Most prostheses fall within two broad categories:
C. Deville, F. Madonna, S. A. M. Nashef, C. Doutremepuich   +3 more
openaire   +1 more source

First percutaneous implantation of a completely tissue-engineered self-expanding pulmonary heart valve prosthesis using a newly developed delivery system: a feasibility study in sheep

Cardiovascular Intervention and Therapeutics, 2016
H. Spriestersbach, Antonia Prudlo, M. Bartosch, B. Sanders, T. Radtke, F. Baaijens, S. Hoerstrup, F. Berger, B. Schmitt   +8 more
semanticscholar   +1 more source

The flutter-by effect: a comprehensive study of the fluttering cusps of the Perceval heart valve prosthesis.

Interactive Cardiovascular and Thoracic Surgery, 2018
A. Aljalloud, M. Shoaib, S. Egron, J. Arias, L. Tewarie, H. Schnoering, S. Lotfi, A. Goetzenich, N. Hatam, D. Pott, Zhaoyang Zhong, U. Steinseifer, R. Zayat, R. Autschbach   +13 more
semanticscholar   +1 more source

[Heart valve prosthesis in congenital heart defects].

Kardiologiia, 1977
The experience of 68 cases of prosthetic valve replacement for congenital heart diseases is presented. The majority of the cases were 57 patients with the Ebstein anomaly and tetralogy of Fallot. In the patients with the Ebstein anomaly the tricuspid valve was replaced, in those with the tetralogy of Fallot--a plastic enlargement of the pulmonary ...
openaire   +1 more source