Table 2 Angiographic and Procedural Characteristics
From: Comparison of bailout and planned rotational atherectomy for severe coronary calcified lesions
Planned RA(n = 138) | Bailout RA(n = 52) | P Value | |
|---|---|---|---|
Target vessel | 0.031 | ||
LM | 2 | 1 | |
LAD | 111 | 31 | |
LCX | 4 | 3 | |
RCA | 21 | 17 | |
Chronic total occlusion (%) | 5 (3.6%) | 4 (7.7%) | 0.135 |
ACC/AHA type B2/C (%) | 110 (79.7%) | 43 (82.7%) | 0.569 |
Predilatation (%) | 136 (98.6%) | 50 (96.2%) | 0.897 |
Burr size | 0.678 | ||
1.25 | 59 | 20 | |
1.5 | 73 | 30 | |
1.75 | 6 | 2 | |
More than 1 burr | 7 (5.1%) | 3 (5.8%) | 0.848 |
Number of balloons | 1.6 ± 0.8 | 2.7 ± 1.3 | <0.001 |
Number of stents | 2.0 ± 0.8 | 2.2 ± 0.8 | 0.224 |
Total stents length (mm) | 60.7 ± 24.1 | 62.1 ± 26.0 | 0.307 |
Postdilation(%) | 137 (99.3%) | 50 (96.2%) | 0.923 |
Procedure time (min) | 83.5 ± 26.2 | 100.8 ± 36.4 | 0.007 |
Procedure cost (Yuan) | 85,090 ± 22,171 | 93,801 ± 25,923 | 0.342 |
Fluoroscopy Volume (mGy) | 941 ± 482 | 1227 ± 872 | 0.012 |
Contrast amount (ml) | 237 ± 62 | 275 ± 90 | 0.003 |