GORE® PRECLUDE® Pericardial Membrane, made of ePTFE membranes, is an effective solution for minimizing tissue attachment to the material in reconstructive procedures involving the pericardium. This kind of products are first choices of leading surgeons worldwide. During cardiac reconstructions or repair within the pericardial space, it is important that complications associated with the formation of tissue attachment to the material be minimized to facilitate re operation. it is important that complications associated with the formation of tissue attachment to the material be minimized to facilitate reoperation during cardiac reconstructions or repair within the pericardial space.