AORTO-BIFEMORAL GRAFTING: FACTORS INFLUENCING LATE RESULTS

Lazar Davidovic, Slobodan Lotina, Bojan Vojnovic, Dusan Kostic, Dragan Markovic, Miroslav Markovic, Nenad Jakovljevic, Tijana Simic
Institute for Cardiovascular Diseases, Clinical Centre of Serbia,
Belgrade, Yugoslavia

The authors are presenting late results and respective determinant factors on basis of 283 consecutive aorto-bifemoral bypasses. The bifurcated PTFE graft was used in 136, while the knitted Dacron graft in 147 cases. There were 25 (8.8%) female and 258 (91.2%) male patients, average age of 56. 88 years (32-82). The mean follow up period was 3.6 years (one to 9.5 years). The intrahospital mortality rate was 11 (3.9%). Immediate graft patency was 96.4% for PTFE, and 99.4% for Dacron graft, while late patency rate was 94.9% and 96.6%, without statistically significant difference between two types of grafts (p>0.05). The location of distal anastomosis at the deep femoral artery and simultaneously performed femoro-popliteal bypass significantly increased graft patency (p<0.05), while occlusion of the superficial femoral artery decreased graft patency, however not significantly (p>0.05). The configuration of the proximal anastomosis did not influenced graft patency. There were 6 (2.1%) early and 14 (5.2%) late graft occlusions, 3 (1.05%) distal anastomotic pseudoaneurysms and 5 (1.7%) graft infection, also with no statistically difference between two types of grafts. The distal anastomotic stenosis caused by neointimal hyperplasia was statistically grater in patients with PTFE grafts.

P. 85-95

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