Angiography at 12 months
Lumen diameter results assessed using quantitative angiography were
consistent with the IVUS results. Fewer grafts became occluded within 12
months in patients randomised to the low pressure test compared to high
(4/62; 6% vs. 8/67; 12%; odds ratio OR (low:high) = 0.53, 95%CI 0.15,
1.88, p=0.32) and with pedicled harvest compared to conventional (4/66;
6% vs. 8/63; 13%; OR (pedicled: conventional) = 0.46, 95%CI 0.13,
1.62, p=0.22, Figure 3, Appendix Table A7, Figure A1 ).