Table 1 Patient demographics.
| Total | Ruptured | Non-ruptured | ||||
|---|---|---|---|---|---|---|
| Number of cases | 10352 | 521 | 9831 | |||
| Preoperative data | Cases | Rate (%) | Cases | Rate (%) | Cases | Rate (%) |
| Female | 1920 | 18.5% | 112 | 21.5% | 409 | 4.2% |
| Age | ||||||
| (mean±SD) | 76.7±8.5 | 76.7±9.5 | 76.7±8.4 | |||
| <65 | 708 | 6.8% | 52 | 10.0% | 656 | 6.7% |
| 65–74 | 3022 | 29.2% | 159 | 30.5% | 2863 | 29.1% |
| 75–84 | 4850 | 46.9% | 180 | 34.5% | 4670 | 47.5% |
| 85≤ | 1772 | 17.1% | 130 | 25.0% | 1642 | 16.7% |
| Rupture | ||||||
| Rupture with enteric fistula | 21 | 0.2% | ||||
| Rupture without enteric fistula | 500 | 4.8% | ||||
| Non-rupture | 9831 | 95.0% | ||||
| Device usage | ||||||
| Main body+leg | 9707 | 93.8% | ||||
| Main body only | 309 | 3.0% | ||||
| Leg only | 186 | 1.8% | ||||
| Others | 150 | 1.4% | ||||
| Lesion for treatment | ||||||
| Abdominal aorta | 7278 | 70.3% | 381 | 73.1% | 6897 | 70.2% |
| Abdominal aorta-iliac artery | 3074 | 29.7% | 140 | 26.9% | 2934 | 29.8% |
| Dissection | ||||||
| Dissection | 322 | 3.1% | 15 | 2.9% | 307 | 3.1% |
| Non-dissection | 10030 | 96.9% | 506 | 97.1% | 9524 | 96.9% |
| Symptom | ||||||
| Symptomatic | 1151 | 11.1% | 478 | 91.7% | 673 | 6.8% |
| Asymptomatic | 9201 | 88.9% | 43 | 8.3% | 9158 | 93.2% |
| Pathogenesis | ||||||
| Degenerative | 10147 | 98.0% | 488 | 93.7% | 9659 | 98.3% |
| Inflammation | 80 | 0.8% | 7 | 1.3% | 73 | 0.7% |
| Aortitis | 5 | 0.0% | 0 | 0.0% | 5 | 0.1% |
| Infection | 62 | 0.6% | 18 | 3.5% | 44 | 0.4% |
| Connective tissue disorders | 6 | 0.1% | 0 | 0.0% | 6 | 0.1% |
| Others | 52 | 0.5% | 8 | 1.5% | 44 | 0.4% |
| Comorbidities | ||||||
| Respiratory disorder | 1608 | 15.5% | 88 | 16.9% | 1520 | 15.5% |
| Home oxygen therapy | 66 | 0.6% | 5 | 1.0% | 61 | 0.6% |
| Hypertension | 6906 | 66.7% | 340 | 65.3% | 6566 | 66.8% |
| Cerebrovascular disease | 1306 | 12.6% | 70 | 13.4% | 1236 | 12.6% |
| Hemodialysis | 452 | 4.4% | 18 | 3.5% | 434 | 4.4% |
| Coronary artery disease | 2238 | 21.6% | 62 | 11.9% | 2176 | 22.1% |
| Diabetes mellitus | 1482 | 14.3% | 57 | 10.9% | 1425 | 14.5% |
| Hostile abdomen | 968 | 9.4% | 49 | 9.4% | 919 | 9.3% |
| Renal function | ||||||
| Creatinine (mean±SD) (mg/dL) | 1.1±0.7 | 1.4±0.9 | 1.1±0.7 | |||
| eGFR (mean±SD) | 57.2±19.8 | 47.5±22.2 | 57.7±19.6 | |||
| Proximal fixation | ||||||
| Diameter (mean±SD) (mm) | 21.9±3.9 | 22.4±4.1 | 21.9±3.9 | |||
| Length (mean±SD) (mm) | 33.4±18.0 | 29.1±18.3 | 33.6±18.0 | |||
| Aneurysm diameter (mean±SD) (mm) | 51.6±11.7 | 66.5±17.3 | 50.8±10.8 | |||
| Distal landing zone (right) | ||||||
| Common iliac artery | 7585 | 73.3% | 390 | 74.9% | 7195 | 73.2% |
| External iliac artery | 2348 | 22.7% | 104 | 20.0% | 2244 | 22.8% |
| Others | 419 | 4.0% | 27 | 5.2% | 392 | 4.0% |
| Diameter (mean±SD) (mm) | 13.1±3.9 | 13.4±4.5 | 13.1±3.9 | |||
| Length (mean±SD) (mm) | 36.8±16.9 | 33.9±14.4 | 36.9±17.0 | |||
| Distal landing zone (left) | ||||||
| Common iliac artery | 8255 | 79.7% | 411 | 78.9% | 7844 | 79.8% |
| External iliac artery | 1643 | 15.9% | 76 | 14.6% | 1567 | 15.9% |
| Others | 454 | 4.4% | 34 | 6.5% | 420 | 4.3% |
| Diameter (mean±SD) (mm) | 13.3±3.7 | 13.5±4.1 | 13.3±3.7 | |||
| Length (mean±SD) (mm) | 39.8±17.7 | 39.6±17.2 | 40.0±17.7 | |||
SD: standard deviation; eGFR: estimated glomerular filtration rate