Background
Methods
Study design and population
Data collection
Procedural details
Study endpoints and definitions
Statistical analysis
Results
Patients characteristics
Planned RA(n = 138) | Bailout RA(n = 52) | P Value | |
---|---|---|---|
Age (years) | 70.2 ± 8.3 | 69.3 ± 10.1 | 0.224 |
Male (%) | 86 (62.3%) | 36 (69.2%) | 0.376 |
BMI (kg/m2) | 25.0 ± 3.0 | 24.7 ± 2.6 | 0.352 |
Hypertension (%) | 111 (83.3%) | 38 (73.1%) | 0.272 |
DM (%) | 71 (51.4%) | 22 (42.3%) | 0.261 |
Dyslipidemia (%) | 35 (25.3%) | 18 (34.6%) | 0.205 |
Smoking (%) | 60 (43.5%) | 26 (50.0%) | 0.421 |
LVEF (%) | 65.1 ± 8.2 | 63.4 ± 9.4 | 0.289 |
Prior PCI (%) | 30 (21.7%) | 12 (23.1%) | 0.843 |
Prior CABG (%) | 3 (2.2%) | 2 (3.8%) | 0.521 |
eGFR<60 ml/min/1.73m2 (%) | 16 (11.6%) | 9 (17.3%) | 0.299 |
Clinical presentation | 0.812 | ||
SCAD | 31 (22.5%) | 11 (21.2%) | |
ACS | 107 (77.5%) | 41 (78.8%) | |
MVD (%) | 103 (74.6%) | 41 (78.8%) | 0.740 |
IVUS/OCT-guided (%) | 35 (25.4%) | 6 (11.5%) | 0.039 |
Lesion and procedural characteristics
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 |
Procedural complication characteristics
Planned RA(n = 138) | Bailout RA(n = 52) | P Value | |
---|---|---|---|
Procedural Success | 137 (99.3%) | 48 (92.3%) | 0.007 |
PCI-related MI | 7 (5.1%) | 4 (7.7%) | 0.688 |
Complications | 6 (4.3%) | 9 (17.3%) | 0.009 |
Bradycardia | 2 | 4 | |
slow-no-reflow | 2 | 1 | |
Dissection | 2 | 3 | |
Burr entrapment | 0 | 1 |