Variable | Preoperatively | Postoperatively | % change* | p Value |
End diastolic volume (ml) | 335 (107) | 307 (103) | 18 (9) | 0.06 |
End systolic volume (ml) | 227 (101) | 237 (98) | −15 (14) | 0.03 |
Stroke volume (ml) | 58 (13) | 70 (21) | +12 (10) | 0.02 |
Ejection fraction (%) | 18 (5) | 24 (10) | +31 (24) | 0.03 |
Mitral inflow (l/mm) | 12.4 (5.3) | 5.4 (0.5) | −49 (22) | 0.02 |
Forward cardiac output (l/min) | 3.2 (1.0) | 4.7 (0.9) | +52 (38) | 0.01 |
Regurgitant volume (l/min) | 9.2 (5.4) | 0.8 (0.6) | 88.6 (10.1) | 0.01 |
Regurgitant fraction (%) | 70 (14) | 15 (11) | −79 (15) | < 0.001 |
Values are mean (SD). *Percentage change from preoperative study at 4–6 months postoperatively. NYHA class fell significantly from 3.9 (0.4) to 1.8 (0.5) (p < 0.001).
Reproduced from Bolling et al. J Thorac Cardiovasc Surg1998;115: 381-8. with permission of the publisher.