Table II.
Anatomic/Procedural Characteristics of the included patients with juxta-/pararenal aortic aneurysms undergoing fenestrated EVAR
| Infraceliac Sealing zone (N=1246) | Supraceliac sealing zone (N=240) | p-value | |
|---|---|---|---|
|
| |||
| Large AAA-diameter (≥65mm) | 212 (17%) | 69 (29%) | <.001 |
| Preoperative AAA-Diameter (mm) | 58 [IQR 54, 62] | 60 [IQR 56, 67] | <.001 |
| Proximal Aneurysm Extent | <.001 | ||
| Zone 8 (Pararenal) | 737 (59%) | 174 (73%) | |
| Zone 9 (Juxtarenal) | 509 (41%) | 66 (28%) | |
| Proximal Sealing Zone | <.001 | ||
| Zone 5 | 0 (0%) | 147 (61%) | |
| Zone 6 | 90 (7.2%) | 93 (39%) | |
| Zone 7 | 786 (63%) | 0 (0%) | |
| Zone 8 | 370 (30%) | 0 (0%) | |
| Proximal Seal Extent (mean [zones; sd]) | 1.18 (0.79) | 2.89 (0.63) | <.001 |
| Repair type | <.001 | ||
| Commercial FEVAR | 1142 (92%) | 44 (18%) | |
| PMEG | 104 (8.3%) | 196 (82%) | |
| No. of Target vessels (mean[sd]) | 2.39 (0.71) | 3.69 (0.62) | <.001 |
| Celiac Trunk | 0 (0%) | 218 (91%) | |
| Superior Mesenteric artery | 772 (62%) | 234 (98%) | |
| Right renal artery | 1105 (89%) | 219 (91%) | |
| Left renal artery | 1098 (88%) | 215 (90%) | |
| Distal Sealing zone | .006 | ||
| Aortic | 63 (5.1%) | 24 (10%) | |
| Common iliac | 1051 (84%) | 186 (78%) | |
| External iliac or lower | 132 (11%) | 30 (13%) | |
| Celiac branch treatment | |||
| Fenestration | NA | 144 (60%) | |
| Scallop | NA | 74 (31%) | |
| Occluded | NA | 11 (4.6%) | |
| Purposely Covered* | NA | 11 (4.6%) | |
| Procedure time (min) | 186 [IQR 140, 250] | 238 [IQR 184, 307] | <.001 |
| Fluoro time (min) | 51 [IQR 37, 72] | 68 [IQR 51, 92] | <.001 |
| Blood Loss (cc) | 200 [IQR 100, 350] | 250 [IQR 100, 500] | <.001 |
| Contrast use (mL) | 105 [IQR 75, 148] | 100 [IQR 60, 160] | .42 |
| Center Volume Category | <.001 | ||
| Low volume (≤2) | 400 (32%) | 24 (10%) | |
| Medium volume (3-17) | 714 (57%) | 117 (49%) | |
| High volume (≥18) | 132 (11%) | 99 (41%) | |
| Physician Volume Category | <.001 | ||
| Low volume (<1) | 420 (33.7%) | 30 (12.5%) | |
| Medium volume (2-9) | 664 (53.3%) | 98 (40.8%) | |
| High volume (≥10) | 162 (13.0%) | 112 (46.7%) | |
FEVAR = fenestrated endovascular aneurysm repair; PMEG = physician modified endograft; mL = milliliter