[Distal anastomosis using parachute technique with 4 stay-sutures for Stanford type A acute aortic dissection].

Objective: Distal anastomosis in total arch repair for type A acute aortic dissection is difficult because of fragile aortic wall and time-limiting procedure. Until 2008, distal anastomosis was performed with continuous suture technique at 20 ℃, and parachute technique with 4-stay sutures at 26 ℃ was introduced in our institution. This new technique was compared with previous distal anastomosis with continuous suture technique.

Methods: From May 1997 to December 2010, 40 patients underwent emergent arch repair for type A acute aortic dissection. Continuous suture technique was used in 23 patients (group C) and parachute technique with 4 stay-sutures was used in 17 patients( group P).

Results: Patient's demographics did not differ between the 2 groups and there was no difference in perioperative or hospital death in the 2 groups. Lower limb ischemic time, cardiac ischemic time, cardiopulmonary bypass time and operation time were significantly shorter in group P.

Conclusions: Distal anastomosis using parachute technique with 4-stay sutures in arch repair for type A acute aortic dissection seems to be useful compared with continuous suture technique.