Table 3. Major adverse cardiovascular events and periodic echocardiography results in patients with pure aortic regurgitation.
| Characteristics | Preoperation | Discharge | Follow-up | |||||
|---|---|---|---|---|---|---|---|---|
| 1 month | 6 months | 1 year | 2 years | 3 years | 4 years | |||
| Peak velocity, m/s | 1.98 ± 0.21 | 1.91 ± 0.40 | 1.53 ± 0.27 | 1.81 ± 0.25 | 1.76 ± 0.25 | 1.63 ± 0.19 | 1.70 ± 0.14 | 1.68 ± 0.15 |
| Peak pressure gradient, mm Hg | 15.70 ± 3.28 | 14.93 ± 6.40 | 9.60 ± 3.39 | 13.33 ± 3.62 | 12.55 ± 3.43 | 10.65 ± 2.56 | 11.60 ± 1.98 | 11.78 ± 2.01 |
| Mean pressure gradient, mm Hg | 5.50 ± 1.29 | 8.50 ± 3.32 | 5.75 ± 2.22 | 7.75 ± 1.50 | 7.00 ± 2.16 | 6.25 ± 1.89 | 6.00 ± 0.82 | 5.50 ± 0.58 |
| Effective orifice area, cm2 | 2.53 ± 0.22 | 2.33 ± 0.39 | 2.08 ± 0.17 | 2.05 ± 0.25 | 2.53 ± 0.37 | 2.67 ± 0.41 | 2.68 ± 0.69 | 2.55 ± 0.62 |
| Perivalvular leakage, n (%) | ||||||||
| None/trivial | – | 4 (100.0) | 4 (100.0) | 4 (100.0) | 4 (100.0) | 4 (100.0) | 4 (100.0) | 4 (100.0) |
| Mild | – | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| Moderate/severe | – | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| Intra-prosthetic AR, n (%) | – | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| LVDd, mm | 61.50 ± 2.08 | 53.00 ± 3.74 | 53.50 ± 3.87 | 50.25 ± 5.25 | 45.00 ± 3.37 | 41.50 ± 4.12 | 44.00 ± 6.68 | 43.75 ± 8.73 |
| LVEF, % | 64.10 ± 4.43 | 59.73 ± 2.66 | 52.90 ± 3.33 | 59.70 ± 6.33 | 60.53 ± 2.67 | 60.75 ± 3.10 | 60.00 ± 4.69 | 61.00 ± 5.35 |
| Major adverse cardiovascular events, n (%) | – | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
Continuous variables were performed as mean ± standard deviation. Categorical variables were reported as number (percentage). The number of major adverse cardiovascular events was reported on the time point that the events occurred.
LVDd: left ventricular end-diastolic diameter; LVEF: left ventricular ejection fraction