Heart has 4 chambers through which blood flows to the whole body. By coordinated series of contractions of the heart muscle, heart pumps blood through its four chambers and on the rest of the body. While the heart muscle is relaxing, it receives blood from venous system. In order to achieve this, pumped blood from each chamber during contraction should not return back during relaxation and enough volume of blood should enter each chamber during relaxation. Each heart valve plays a role in providing healthy blood circulation.
Heart valves are leaf-like structures composed of biological connective tissue membranes. There are four valves in the heart. Two of them are located at the beginning of major arteries leaving the heart; aorta and pulmonary artery which deliver blood to the body and the lungs respectively. The other two valves are located between the upper and lower chambers, the atria and the ventricles. Normally, the mitral valve; the one between left atrium and left ventricle has two leaflets and the other three has three leaflets.
In some cases, valve replacement procedure may only require a series of small incisions. Patients with an intermediate or high risk and severe aortic valve tightness can be good candidates for a minimally invasive valve replacement. Minimally Invasive Valve Replacement can be performed on certain people who can't undergo open-heart surgery. This approach is increasingly being used with the aim of reducing the “invasiveness” of the surgical procedure, while maintaining the same efficacy, quality and safety of a conventional approach.
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