TABLE 3.
Procedural characteristics and results (intention-to-treat population).
| JBT group (N = 143) |
JWT group (N = 141) |
Difference (95% CI)* |
P-value | |
| Transradial approach | 97.2% (139) | 95.0% (134) | 2.2 (–2.3, 6.7) | 0.34 |
| Nitroglycerin use | 32.9% (47) | 27.7% (39) | 5.2 (–5.5, 15.9) | 0.34 |
| Dopamine use | 0.7% (1) | 0% (0) | 0.7 (–0.7, 2.1) | 1.00 |
| MV | ||||
| Balloon pre-dilation | 100% (143) | 98.6% (139) | 1.4 (–0.5, 3.4) | 0.25 |
| Maximal diameter of pre-dilation balloon, mm | 2.3 ± 1.1 | 2.4 ± 1.6 | –0.1 (–0.4, 0.2) | 0.48 |
| Maximal inflation pressure with pre-dilation balloon, atm | 12.1 ± 2.5 | 11.9 ± 2.8 | 0.3 (–0.4, 0.9) | 0.38 |
| Dissection before MV stenting | 2.1% (3) | 4.3% (6) | –2.2 (–6.2, 1.9) | 0.33 |
| Number of stents in MV | 1.3 ± 0.5 | 1.3 ± 0.5 | 0.1 (–0.04, 0.2) | 0.56 |
| Stent diameter in MV, mm | 3.0 ± 0.4 | 3.0 ± 0.3 | 0.07 (–0.01, 0.15) | 0.09 |
| Stent diameter/distal main vessel diameter | 1.31 ± 0.29 | 1.36 ± 0.29 | –0.05 (–0.13, 0.02) | 0.13 |
| Total stent length in MV, mm | 26.8 ± 7.8 | 27.5 ± 8.8 | –0.7 (–2.7, 1.2) | 0.46 |
| Lesion success | 99.3% (142) | 99.3% (140) | –0.01 (–1.94, 1.96) | 1.00 |
| SB | ||||
| Balloon pre-dilation | 39.2% (56) | 34.0% (48) | 5.1 (–6.1, 16.3) | 0.37 |
| SB stenting | ||||
| Elective 2-stent strategy | 3.5% (5) | 0 (0) | 3.5 (0.5, 6.5) | 0.06 |
| Provisional SB stenting | 0.7% (1) | 2.1% (3) | –1.4 (–4.2, 1.3) | 0.37 |
| Number of stents in SB | 0.03 ± 0.18 | 0.04 ± 0.22 | 0 (–0.05, 0.05) | 0.98 |
| Jailed balloon technique | 94.4% (135) | 3.5% (5) | 90.9 (86.0, 95.7) | < 0.001 |
| Jailed balloon diameter, mm | 1.82 ± 0.24 | 1.80 ± 0.27 | 0.02 (–0.2, 0.24) | |
| Jailed balloon length, mm | 14.95 ± 0.61 | 15.00 ± 0.00 | –0.05 (–0.6, 0.49) | |
| Jailed balloon required inflation | 16.8% (24) | 1.4% (2) | 15.36 (8.94,21.79) | < 0.001 |
| Treatment after MV stent deployed | 45.5% (65) | 34.8% (49) | 10.7 (–0.7, 22.0) | 0.07 |
| Final kissing balloon inflation | 20.3% (29) | 18.4% (26) | 1.8 (–7.4, 11.0) | 0.69 |
| Lesion treated with POT | 32.1% (45) | 30.0% (42) | 2.1 (–8.7, 13.0) | 0.70 |
| Lesion treated with re-POT | 3.6% (5) | 1.4% (2) | 2.1 (–1.5, 5.8) | 0.45 |
| Lesion success | 93.7% (134) | 92.9% (131) | 0.8 (–5.0, 6.6) | 0.79 |
Values are mean ± SD or% (n). *The value is the difference between the intentional strategy group and the conventional strategy group. CI, confidence interval; RVD, reference vessel diameter; POT, proximal optimization technique; other abbreviations as in Table 2.