Table 2.
Procedural details of the study population
| Total N = 305 | MVA <4.0 cm2 (n = 66) | MVA ≥4.0 cm2 (n = 239) | p value | |
|---|---|---|---|---|
| Type of clip used, n (%) | ||||
| Old gen | 100 (32.8) | 25 (37.9) | 75 (31.4) | 0.47 |
| NT classic | 20 (6.6) | 5 (7.6) | 15 (6.3) | 0.77 |
| NTW | 52 (17.0) | 10 (15.2) | 42 (17.6) | 0.49 |
| NTR | 24 (7.9) | 9 (13.6) | 15 (6.3) | 0.09 |
| XT | 16 (5.2) | 4 (6.1) | 12 (5.0) | 0.78 |
| XTW | 92 (30.2) | 11 (16.7) | 83 (34.7) | 0.10 |
| XTR | 42 (13.8) | 9 (13.6) | 33 (13.8) | 0.96 |
| Mean number of clips implanted (mean ± SD) | 1.5 ± 0.04 | 1.3 ± 0.07 | 1.5 ± 0.04 | 0.03 |
| Number of clips implanted, n (%) | ||||
| 0 | 3 (1.0) | 1 (1.5) | 2 (0.8) | 0.28 |
| 1 | 172 (57.0) | 45 (68.2) | 127 (53.8) | |
| 2 | 111 (36.8) | 18 (27.3) | 93 (39.4) | |
| ≥3 | 16 (5.3) | 2 (3.0) | 14 (5.9) | |
| Location of regurgitant jet, n (%) | ||||
| A2-P2 | 262 (87.0) | 62 (95.4) | 202 (85.6) | 0.76 |
| A3-P3 | 17 (5.6) | 4 (6.2) | 13 (5.5) | |
| A1-P1 | 11 (3.7) | 0 (0.0) | 11 (4.7) | |
| A2-P3 | 8 (2.7) | 2 (3.1) | 6 (2.5) | |
| A2-P1 | 3 (1.0) | 0 (0.0) | 3 (1.3) | |
| Fluoroscopy time, min (mean ± SD) | 22.7 ± 1.0 | 21.7 ± 1.7 | 22.9 ± 1.2 | 0.60 |
Notes. Values are represented as n (%); mean ± SD. Bold represents significant values (“p < 0.05”).
Abbreviations: MVA, mitral valve area; NT, narrow tissue clip; NTR, narrow tissue repair; NTW, narrow tissue wide clip; XT, extended tissue clip; XTR, extended tissue repair; XTW, extended tissue wide clip.