The Zenith® Thoracic Dissection Study is a clinical trial to study the safety and effectiveness of the Zenith® Dissection Endovascular System in the treatment of dissections (length-wise tear) of the descending thoracic aorta. The Zenith® Dissection Endovascular System is comprised of the Zenith TX2® TAA Endovascular Graft and the Zenith® Dissection Endovascular Stent. Instead of making a large incision in the chest, the physician makes a small incision near each hip to insert, and guides the graft and the dissection stent into place in the aorta.
The purpose of this study is to evaluate the safety and effectiveness performance of the Zenith® Dissection Endovascular System in the treatment of aortic dissections involving the descending thoracic aorta.