Aortic valve gradient
At 6 weeks post-operatively, the PAR group had a significantly lower transvalvular peak gradient (PG) (8.69 vs 15.45, p<0.0001) compared to the CVG group, which persisted at 1 year (7.52 vs 13.70, p=0.001). None of the patients in either group were found to have more than mild aortic regurgitation.