Antico Elements relies on over 35 years of experience with manufacturing polyurethane architectural products. Attention to details is a hallmark of this business and we take great pride in creating rock panels, stacked stone, dry stack that rival the look and feel of natural materials but at a fraction of the cost.Cheap stone wall panels can be of high quality when manufactured correctly.ttention to details is a hallmark of this business and we take great pride in creating rock panels, stacked stone, dry stack that rival the look and feel of natural materials but at a fraction of the cost. Cheap stone wall panels can be of high quality when manufactured correctly.
1 Sometimes, a patient's own tissue can be used for valve replacement (called an autograft). 2  Patients with biological valves usually do not need to take blood-thinning medicines. 3  These valves are not as strong as mechanical valves, though, and they may need to be replaced every 10 years or so.
â Mitral valve prolapse â Mitral valve prolapse occurs when the mitral valve leaflet tissue is deformed and elongated so that the leaflets do not come together normally. This abnormal valve motion may allow blood to leak backwards from the left ventricle into the left atrium.