منابع مشابه
Preface: Heart valves.
Reference to this organ, which perhaps was not commonplace in the scientific literature 15 years ago, has become exceedingly prevalent in the past 5 years. The field of heart valve research has become contemporary due to a heightened awareness of the seriousness and frequency of heart valve disease. Indeed, valve therapies are still extremely limited for patients above the age of 75 or less tha...
متن کاملTissue-engineered heart valves.
Currently-used mechanical and biological heart valve prostheses have several disadvantages. Mechanical prostheses, based on carbon, metallic and polymeric components, require permanent anticoagulation treatment, and their usage often leads to adverse reactions, e.g. thromboembolic complications and endocarditis. Xenogenous and allogenous biological prostheses are associated with immune reaction...
متن کاملArtificial Heart Valves
The cardiovascular system is a closed circulatory system that ensures blood flow through the human body. Blood circulates through two systems; the first is responsible for pushing blood from the heart to the lungs to capture oxygen, and the second is responsible for distributing oxygenated blood to body organs. This system is composed of a double pump with branched tubes that leads blood from t...
متن کاملProsthetic Aortic Heart Valves
In this review, the anatomy and structure of the aortic valve and its prostheses are comprehensively discussed. Cardiac anatomy and function, human heart valves and their prostheses are also extensively discussed. The current status of prosthetic heart valves along with the next generation of these devices is broadly deliberated. Ather promising options such astranscatheter technologies (percut...
متن کاملProsthetic heart valves.
The first prosthetic valve was implanted by Hufnagel in 1952 in a patient with aortic insufficiency. Since then, prosthetic valves have evolved into various mechanical and bioprosthetic shapes and sizes. Despite the excitement surrounding the current development of prosthetic heart valves, surgically implanted valves remain the mainstay of current practice, and this article discusses the hemody...
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ژورنال
عنوان ژورنال: BMJ
سال: 1990
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.301.6749.443-a