Variable | All embolization procedures | First embolization procedure | Second embolization procedure | Third embolization procedure | Fourth/fifth embolization procedures |
Number of procedures | 1.3±0.6 (112) (1.0, 5.0) | N/A | N/A | N/A | N/A |
1 | 90/112 (80.4%) | N/A | N/A | N/A | N/A |
2 | 17/112 (15.2%) | N/A | N/A | N/A | N/A |
3 | 3/112 (2.7%) | N/A | N/A | N/A | N/A |
≥4 | 2/112 (1.8%) | N/A | N/A | N/A | N/A |
Catheter access site(s)* | |||||
Left femoral | 15/142 (10.6%) | 10/112 (8.9%) | 3/22 (13.6%) | 0/5 (0.0%) | 2/3 (66.7%) |
Right femoral | 129/142 (90.8%) | 103/112 (92.0%) | 20/22 (90.9%) | 5/5 (100.0%) | 1/3 (33.3%) |
Other | 1/142 (0.7%) | 1/112 (0.9%) | 0/22 (0.0%) | 0/5 (0.0%) | 0/3 (0.0%) |
Apollo microcatheter used | |||||
1.5 cm tip | 99/142 (69.7%) | 84/112 (75.0%) | 12/22 (54.5%) | 1/5 (20.0%) | 2/3 (66.7%) |
3.0 cm tip | 57/142 (40.1%) | 38/112 (33.9%) | 13/22 (59.1%) | 4/5 (80.0%) | 2/3 (66.7%) |
Total reflux (cm) | 3.1±2.8 (128) (0.0, 16.0) | 2.8±2.4 (102) (0.0, 13.2) | 4.0±3.7 (19) (0.0, 16.0) | 5.3±3.7 (4) (1.5, 10.0) | 5.0±6.1 (3) (1.0, 12.0) |
Gap present between reflux and proximal marker | 94/142 (66.2%) | 72/112 (64.3%) | 16/22 (72.7%) | 4/5 (80.0%) | 2/3 (66.7%) |
Catheter tip detached | 83/142 (58.5%) | 62/112 (55.4%) | 15/22 (68.2%) | 4/5 (80.0%) | 2/3 (66.7%) |
Unintentional | 2/83 (2.4%) | 1/62 (1.6%) | 0/15 (0.0%) | 0/4 (0.0%) | 1/2 (50.0%) |
Onyx formulation | |||||
34 LES | 51/130 (39.2%) | 41/102 (40.2%) | 8/20 (40.0%) | 2/5 (40.0%) | 0/3 (0.0%) |
18 LES | 99/130 (76.2%) | 76/102 (74.5%) | 16/20 (80.0%) | 4/5 (80.0%) | 3/3 (100.0%) |
Onyx volume (mL) | 2.4±2.4 (129) (0.1, 17.0) | 2.1±1.9 (101) (0.1, 9.4) | 3.3±3.7 (20) (0.5, 17.0) | 3.8±2.7 (5) (0.6, 7.5) | 3.3±4.9 (3) (0.5, 9.0) |
Fluoroscopy time (min) | 157.6±227.2 (142) (10.0, 1768.0) | 146.8±185.5 (112) (10.0, 985.0) | 224.6±386.3 (22) (24.0, 1768.0) | 156.8±214.8 (5) (44.0, 540.0) | 68.3±60.4 (3) (32.0, 138.0) |
Data are presented as count/sample size (%) or mean±SD (n) (min, max).
*Three patients had both left and right femoral catheter access, and in one patient the side was not specified.
LES, liquid embolic system.