Table 1. Study characteristics.
| Author (Reference) | Year | Patients (N) | Age (yrs) | F/U (yrs) | F/U (pt-yrs) | Preop. AI (>2+) (%) | Marfan (%) | Bicuspid AV (%) |
|---|---|---|---|---|---|---|---|---|
| Aicher (4) | 2010 | 640 | 56 | 4.8 | 3,072 | NR | NR | 32 |
| Lansac (6) | 2010 | 144 | 54.4 | 2.2 | 317 | NR | 13 | 22.9 |
| Lansac (7) | 2006 | 83 | 49.3 | 1.4 | 116 | 32.9 | 20.5 | 4.8 |
| Boodhwani (8) | 2009 | 264 | 54 | 3.9 | 1,030 | 74.6 | NR | 34.1 |
| DePaulis (9) | 2010 | 278 | 56 | 4.3 | 1,195 | 48.9 | 15.1 | 11.1 |
| Settapani (10) | 2009 | 60 | 60 | 2.4 | 144 | 64 | 5 | 15 |
| Urbanski (11) | 2010 | 106 | 61 | 1.4 | 148 | 60 | NR | NR |
| Doss (12) | 2010 | 66 | 41.2 | 5.1 | 337 | 0 | NR | 100 |
| Badiu (13) | 2010 | 102 | 47 | 2 | 204 | 93.3 | 20.6 | 10.8 |
| Cameron (14) | 2009 | 85 | 33 | 15 | 1,275 | NR | NR | NR |
| Svensson (15) | 2010 | 129 | NR | 3 | 387 | 28.4 | 47.3 | NR |
| David (16) | 2010 | 289 | 48 | 7.3 | 2,110 | 51.2 | 34 | 8.3 |
| Izumoto (17) | 2006 | 40 | 61 | 3.6 | 144 | NR | NR | NR |
| Tanaka (18) | 2011 | 60 | 33 | 4.6 | 276 | 23.3 | 90 | NR |
| Oka (19) | 2011 | 101 | 49.7 | 5 | 505 | 70.3 | 23.8 | 11.9 |
| Kallenbach (20) | 2005 | 284 | 53 | 3.4 | 966 | 50.8 | 19 | 6 |
| Minakata (21) | 2004 | 160 | 55 | 4.2 | 672 | 60.3 | NR | 33.8 |
Preop. AI, preoperative aortic valve insufficiency; F/U, follow up; N, number; NR, not reported; yrs, years; pt-yrs, patient-years; AV, aortic valve