Abdominal Aortic Aneurysm Surgery in High-Risk Patient: Retrograde Anastomosis Using a Ringed Y-graft

Ｉｎ September 1986, Ⅰ developed a ringed Y-graft (RYG) . First, non-suture technique with RYG was applied to 20 high-risk patients with the conventional Y-graft (CYG) method (21 cases) . Aortic cross-clamp time was 37±3.4 minutes in the RYG group and 56±3.1 minutes In the CYG group. The RYG method reduced aortic cross-slamp time significantly(P＜0.001) . All the patients with both groups recovered and were discharged from the hospital. Next, retrograde anastomosis technique with RYG was applied to 9 high-risk patients with cardiac or renal complications, (eight men and one women) with a mean age of 74 years (range 65-82 years). The aortic cross-clamp time ranged from 6-18 minutes with an average of 9:09 minutes. None of the patients deveroped postperative complications and all of them have remained well after discharge. Ｉ succeeded in reducing the aortic cross-clamp time from 56 to 9 minutes by retrograde anastomosis technique, in which anastimosis is started at the peripheral end of the graft. The retrograde anastomosis technique using RYG is useful for high-risk abdominal aortic aneurysm repair.

Abdominal aortic aneurysm

High-risk patient

Ring graft

Retrograde anastomosis

Aortic cross-clamp time