Valor II: The Valiant Thoracic Stent Graft System Clinical Study

The aorta is a large blood vessel that carries blood away from the heart to the organs in the rest of the body. An aneurysm is a weakening in the artery wall that will become a bulge in the aorta. If left untreated, this bulge may continue to grow larger and may rupture (break open) with fatal consequences. In this research study we are investigating a device that can be placed in the aorta to exclude the weakened part of the artery wall and restore blood flow. Information will be collected on the performance of the device for 5 years.