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Date Submitted: 02/26/2016 05:28 AM
A heart valve is present in arteries and veins and facilitates blood flow only in one direction through the heart. The four major valves in the heart are two atrioventricular valves known as bicuspid valve and tricuspid valve and two semilunar valves known as aortic valve and pulmonary valve. A heart valve separates the atria, ventricles and blood vessels from each other. A heart valve is pushed open to allow blood flow and it closes and prevents backflow of blood. This closing is sealed tightly by nodules present at the tip of the cusps, which are the opening leaflets of the heart valve. The dysfunction of the heart valve causes valvular heart disease. There are two types of valvular heart disease, regurgitation or valvular insufficiency where blood flows in wrong direction due to dysfunctional heart valve and the second is valvular stenosis (Severe Aortic Stenosis) where the heart valve becomes narrow. Injured and defective heart valves are repaired or replaced by artificial heart valves. Echocardiography is done to diagnose valvular heart disease. Transcatheter aortic valve replacement, also known as transcatheter aortic valve implantation is one of the treatment procedure for valvular heart disease wherein transcatheter heart valve is used to replace the damaged heart valve.
Transcatheter Heart Valve Replacement (TAVI) Market: Drivers & Restraints
Valvular heart disease is most prevalent among the population aged above 65 years. Around 5% of the global population aged above 65 years is at the risk of developing valvular heart disease. If heart valve is not replaced or repaired, 50% of the valvular heart disease patients would not survive. Transcatheter heart valve is used in transcatheter aortic valve replacement procedure for valvular heart disease patients who are unable to sustain open-heart surgery and it poses life threatening risks to the patient. For instance, patients having heart, lung kidney diseases or diabetic patients face...