Table 6.
Use of the CrossBoss catheter for procedures in which antegrade dissection and reentry was utilized.
| Variable | Overall | CrossBoss | Wire-based techniques only |
|
|---|---|---|---|---|
|
Procedural
Characteristics and Outcomes |
n=458 | n=246 | n=212 | p |
| In-stent restenosis (%) | 13.5 | 15.9 | 10.6 | 0.10 |
| IVUS used (%) | 50.2 | 50.0 | 50.4 | 0.95 |
| Stenting (%) | 84.3 | 88.6 | 78.5 | 0.005 |
| Number of stents* | 2.9±1.1 | 2.9±1.1 | 3.0±1.2 | 0.48 |
| Hemodynamic support (LVAD) (%) |
4.4 | 2.6 | 6.7 | 0.07 |
| Fluoroscopy time (min)* | 58.1 (37.2-87.1) | 51.8 (31.4-80.4) | 63.8 (44.1-97.5) | <0.001 |
| Patient air kerma dose (Gray)* |
4.1 (2.6-6.0) | 3.9 (2.3-6.0) | 4.2 (2.8-6.2) | 0.06 |
| Procedure time (min)* | 156.5 (112.3- 216.8) |
144.5 (103.5- 203.8) |
175.5 (122.3- 235.3) |
<0.001 |
| Contrast volume (ml)* | 310 (226-411) | 300 (225-399) | 340 (240-450) | 0.03 |
| Technical success (%) | 86.9 | 89.8 | 83.5 | 0.045 |
| Procedural success (%) | 85.0 | 87.2 | 82.3 | 0.14 |
| MACE (%) | 2.9 | 3.7 | 1.9 | 0.40 |
| Death (%) | 0.4 | 0.4 | 0.5 | >0.99 |
| Myocardial infarction (%) | 0.9 | 0.8 | 1.0 | >0.99 |
| Stroke (%) | - | - | - | - |
| Emergency re-PCI (%) | 0.2 | 0.4 | 0 | >0.99 |
| Emergency CABG (%) | - | - | - | - |
| Emergency pericardiocentesis (%) |
1.8 | 2.5 | 1.0 | 0.30 |
CABG, coronary artery bypass graft surgery; IVUS, intravascular ultrasound; LVAD, left ventricular assist device; kerma, kinetic energy released per unit mass; MACE, major adverse cardiovascular events; PCI, percutaneous coronary intervention
*
mean±standard deviation or median (interquartile range).