Zenith device

All patients underwent EVAR of AAA under general anesthesia or epidural anesthesia in an operating room equipped with a portable fluoroscopy unit (GE-OEC 9900; GE Healthcare, Salt Lake City, UT, USA). Bilateral cut-down of the common or superficial femoral artery was performed in all cases. We used the Zenith device (Cook Medical, Bloomington, IN, USA) in most cases. In 10 cases, we used Endurant aorto uni iliac devices (Medtronic Endovascular, Santa Rosa, CA, USA) because the diameter of aortic bifurcation was less than 17 mm.
If we noticed the immediate type Ia endoleak after stent graft deployment, we priorly repeated balloon dilation of the proximal seal zone with Coda balloon (Cook Medical). If type Ia endoleak persisted, Palmaz balloon expandable stent (Cordis, Miami Lakes, FL, USA) was performed to seal the proximal neck of AAA. All Palmaz stents were placed just below the level of the lowest renal artery, with minimal to no overlap onto the native aorta.

All EVARs were performed under general or epidural anesthesia in an operating room equipped with a portable fluoroscopy unit (GE-OEC 9900; GE Healthcare, Salt Lake City, UT, USA). Bilateral cut-down of the common or superficial femoral artery was performed in all cases. We used a Zenith device (Cook Medical, Bloomington, IN, USA) in all but 10 cases; in these cases, we used Endurant Aorto-Uni-Iliac devices (Medtronic Endovascular, Santa Rosa, CA, USA) because the diameter was less than 17 mm at the aortic bifurcation.