Table 2:
Procedural characteristics for the 12,911 patients.*
| Variable | % (n) |
|---|---|
| Any prior aortic surgery | 3.7 (478) |
| Urgency | |
| Elective | 89.1 (11,498) |
| Symptomatic | 7.3 (946) |
| Ruptured | 3.6 (467) |
| Aneurysm size | |
| <5.0 cm | 15.8 (2,040) |
| 5.0 – 5.4 cm | 29.5 (3,809) |
| 5.5 – 5.9 cm | 24.4 (3,151) |
| ≥6.0 cm | 30.3 (3,911) |
| Concomitant iliac artery aneurysm | 23.3 (3,011) |
| Procedure time, mean (SD), min | 13..7 (72.1) |
| Unfit for open repair | 17.3 (2,234) |
| Percutaneous access | 56.5 (1,630 / 2,886) |
| Left endpoint in external iliac artery | 5.3 (148 / 2,817) |
| Right endpoint in external iliac artery | 6.3 (176 / 2,818) |
| Volume of iodinated contrast used, mean (SD), mL | 103.0 (64.9; 12,309 / 12,911) |
| Anesthetic type | |
| General | 90.7 (11,708) |
| Regional | 4.8 (622) |
| Local | 4.5 (581) |
| Aortic neck length <1.5 cm | 15.8 (254 / 1,356) |
| Aortic neck diameter | |
| <2.0 cm | 14.1 (222 / 1,575) |
| 2.0-2.9 cm | 75.0 (1,181 / 1,575) |
| ≥3.0 cm | 10.9 (172 / 1,575) |
| Aorta to neck angle | |
| <45 degrees | 87.0 (1,285 / 1,477) |
| 45-60 degrees | 8.9 (131 / 1,477) |
| >60 degrees | 4.1 (61 / 1,477) |
| Neck to aneurysm angle | |
| <45 degrees | 80.8 (1,181 / 1,462) |
| 45-60 degrees | 12.3 (180 / 1,462) |
| >60 degrees | 6.9 (101 / 1,462) |
| Supra-renal fixation | 55.8 (7,204 / 11,943) |
| Endograft manufacturer | |
| Medtronic | 58.9 (7,607) |
| Gore | 18.8 (2,421) |
| Cook | 17.0 (2,195) |
| Endologix | 2.9 (377) |
| Trivascular | 1.2 (158) |
| Lombard | 0.2 (26) |
| Bolton | 0.1 (15) |
| Other | 0.9 (112) |
*
Denominators are given when less than 12,911
Legend: SD, standard deviation; min, minute; mL milliliter; cm, centimeter