Optimal site for proximal and distal anastomoses in AAAs repair.

The replacement of straight graft for vascular aortic reconstruction, in the elective treatment of aortic and aorto-iliac aneurysms, is advisable and requires only two anastomoses and a low surgical risk. In our report we have tried to identify the simplest vascular reconstruction for juxtarenal involvement (15% in our experience), reducing the surgical time and the operative (or postoperative) injuries. The decision to employ the tube or the bifurcated reconstruction depends on the surgeon's assessment of the degree of common iliac dilatation, the presence of an iliac aneurysm or the concomitance of occlusive disease of the iliac-femoral district. Some authors extend the bifurcated repair to prevent the possible future occlusive events or iliac dilatation. We have much information about the natural history of aortic aneurysms but we have also to define the indications for a valuable surgical reconstruction. We have considered a consecutive series of 20 patients who underwent elective aortic and aorto-iliac aneurysm repair in S. Rita private hospital; in 13 patients (65%) the aneurysms were treated with tube grafts, the other patients received bifurcate grafts: 3 (15%) aorto-bisiliac, 2 (10%) aorto-bifemoral and 2 (10%) right aorto-iliac and left aortofemoral bypass procedure. We employed Crawford's inclusion in the juxtarenal involvements, generally without the reimplantation of renal arteries, extending the tube repair in the aorto-iliac dilatation, obtaining a simplification of the surgical procedures. The use of straight graft allows a sensible decrease of surgical operating time, a reduction of hematic loss and a very low incidence of postoperative injuries; this solution became possible also in some selected forms of aneurysmatic involvement of renal arteries.(ABSTRACT TRUNCATED AT 250 WORDS)