Objective      To investigate the significance of aortic partition in endovascular repair of different types of thoracic aortic dissection.       Methods      From January 2009 to January 2015

a total of 208 patients successfully completed stent graft implantation via femoral artery

and bypasses were established between the ascending aorta and brachiocephalic artery or between the brachiocephalic arteries in 42 patients receiving hybrid procedure. According to the relationship between the aorta and brachiocephalic artery

the thoracic aorta was divided into 6 zones: zone -1

zone 0

zone 1

zone 2

zone 3 and zone 4. According to the position of dissection

individualized endovascular repair was employed. If the aortic dissection was located in the ascending aorta or descending aorta and the important branches were not involved (zone -1

zone 3

and zone 4)

single endovascular repair was adopted. If the important branches of the aorta were involved

the bypasses were established between the ascending aorta and brachiocephalic artery or between the brachiocephalic arteries

and then endovascular repair was performed.       Results      No death and severe complications occurred in the perioperative period. Blood flows in the stent grafts and bypass grafts were smooth. Endoleakage appeared in 2 patients who received hybrid procedure. The aortic intima of 1 patient was ruptured again at the distal stent graft in 1 month post-operatively

and true lumen was severely compressed. But the patient was recovered after another stent graft was implanted. The other patients showed good conditions without obvious symptoms. All patients were followed up in 3 months and 1 year after operation. The follow-up of 20 patients was lost after postoperative 1 year.       Conclusion      Individualized plan is selected according to the aortic partition of different types of aortic dissection

which is conducive to simplifying operation method and widening the application of endovascular repair in aortic dissection.