In an aspect, there is a prosthetic valve modification device adapted for endovascular delivery to a cardiac valve. The valve includes first and second support elements each having a collapsed delivery configuration and a deployed configuration. There are at least two bridging members extending from the first support element to the second support element, the bridging members having a delivery configuration and a deployed configuration. The bridging members either extend radially inward from the first and second support elements in the deployed configuration or are entirely straight and devoid of any visible curvature when in said deployed configuration.