Table 4

Systolic Doppler indices in all patients with aortic valve prostheses during the three consecutive studies

Echo indices Pre- (n=41) Post (n=41) Follow up (n=36)
HR (beats/min)75 (17)87 (25)4-150 74 (16)
AoV (m/s)4.8 (0.7)2.6 (0.7)4-150 2.5 (0.4)4-151
MGR (mm Hg)59 (19)17 (10)4-150 14 (5)4-151
PGR (mm Hg)94 (29)31 (17)4-150 25 (8)4-151

  • Values are mean (SD).

  • ↵4-150 p < 0.05, early v late postoperative studies.

  • ↵4-151 p < 0.05 v preoperative study.

  • AoV, peak aortic velocity; HR, heart rate; MGR, mean pressure gradient; PGR, peak pressure gradient; Post, two weeks postoperatively; Pre-, preoperative study.