1. Some swine descending aorta substitution experiments were carried out by use of the new devices and clinical assessment was done.

2. In contrast, dissections confined to the descending aorta are treated medically unless progression of dissection, intractable pain, organ malperfusion, or extra-aortic blood is demonstrated.

3. The pressure of ascending and descending aorta,() left pulmonary artery and pulmonary trunk was measured.

4. Objectives: We sought to demonstrate the long-term natural course of descending aorta dilation after acute aortic dissection (AD) and identify early predictors for late aneurysmal change.

5. It is important to intervene before the aorta reaches 6 cm in the ascending aorta and 7 cm in the descending aorta.

6. Family members of patients with aneurysms also tended to have their aneurysms in the same location of ascending or descending aorta.

7. Objective:To report a new surgical technique for treatment of type A dissection with intimal tears in the descending aorta.

8. Images 3, 4: Color Doppler images showing the sequestrated part of the lungs with its own arterial supply arising directly from the descending aorta .

9. A distinct de pressed pressure was found located at the intersection between aortic arch and descending aorta.

10. Right-sided refers to the position of the arch compared with the trachea, not to the position of the descending aorta.

11. Results Among the 14 cases, 13 cases were diagnosed as thoracic aortic dissections and 1 case as descending aorta pseudoaneurysm; 7 patients received aortic aneurysm endovascular graft exclusion.

12. Images 1, 2: Color Doppler images showing the sequestrated part of the lungs with its own arterial supply arising directly from the descending aorta.

13. The key of operation is extensively dissection of the descending aorta and aortic reconstruction was end-to-side anastomosis.

14. The ascending aorta was involved in 34 of these patients and the descending aorta in 31.