Results 181 to 190 of about 21,374 (239)

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

Developments in mechanical heart valve prosthesis

Sadhana, 2003
Artificial heart valves are engineered devices used for replacing diseased or damaged natural valves of the heart. Most commonly used for replacement are mechanical heart valves and biological valves. This paper briefly outlines the evolution, designs employed, materials being used,. and important factors that affect the performance of mechanical heart
Kalyani Nair, C. V. Muraleedharan, G. S. Bhuvaneshwar   +2 more
openaire   +1 more source

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

[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

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, anticoagulants and pregnancy].

Polski tygodnik lekarski (Warsaw, Poland : 1960), 1991
Patients with artificial valve prostheses require lifelong anticoagulation treatment. The risk of thrombotic complications increases greatly in pregnancy. Anticoagulant treatment in pregnant women with artificial heart valve prostheses in one of the most controversial problems in medical practice as anticoagulants which are beneficial and safe for the ...
L, Judkiewicz, M, Kasznicki
openaire   +1 more source

[Drug therapy following heart valve prosthesis].

Zeitschrift fur die gesamte innere Medizin und ihre Grenzgebiete, 1990
Patients with prostheses of the cardiac valve are, related to the total population, only a small part. But their number permanently increases. Alone in our clinic since 1973 3,250 patients have been provided with artificial cardiac valves. Thus more and more physicians are confronted with the problems of these patients.
H, Erbstösser, K, Kothe
openaire   +1 more source

Which Heart Valve Prosthesis?

The Lancet, 1985
openaire   +3 more sources

[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

[Choice of heart valve prosthesis--1985].

Zeitschrift fur Kardiologie, 1986
Improvement of materials, prosthetic function and perioperative treatment has led to positive results with regard to life expectancy, quality of life and complication rates in heart valve replacement. While mechanical valves are still associated with the risks of thromboembolism and anticoagulant bleeding, there is a continuing risk of early valve ...
H G, Borst, G, Frank, K, Frimpong-Boateng, P, Bednarski   +3 more
openaire   +1 more source