Table 3.
Treatment details and angiography follow-up outcomes of 1322 aneurysms
| Procedural characteristics | Frequency (N = 1322 aneurysms) |
|---|---|
| PED type* | |
| Classic PED | 596 (45.1%) |
| Flex PED | 723 (54.7%) |
| PED size | |
| Diameter (mm) | 4.07 ± 0.53 |
| Length (mm) | 25.37 ± 5.76 |
| PED + coiling | 637 (48.2%) |
| Loose packing | 504 (38.1%) |
| Dense packing | 133 (10.1%) |
| Balloon angioplasty | 31 (2.3%) |
| Multiple PEDs used | 75 (5.7%) |
| Single PED used | 178 (13.5%) |
| Blood thinners | |
| PrePED aspirin/clopidogrel > 3 days | 915/1171 (78.1%) |
| PostPED aspirin/clopidogrel > 6 months | 676/1171 (57.7%) |
| Previous treatment | 33/1171 (2.8%) |
| Coiling | 11/33 (33.3%) |
| Stent-assisted coiling | 22/33 (66.7%) |
| Clipping | 2/33 (6.1%) |
| Angiographic outcomes | |
| Number of covered collateral arteries | 927 (70.1%) |
| Status of covered collateral artery | |
| Patent | 627 (47.4%) |
| Stenotic | 54 (4.1%) |
| Occluded | 26 (2.0%) |
| 100% aneurysm occlusion at last follow-up* | 787 (81.4%) |
| Parent artery status | |
| Patent | 1211 (91.6%) |
| Stenotic | 93 (7.0%) |
| Occluded | 18 (1.4%) |
| Device deployment to the target site† | |
| Successful | 1241 (93.9%) |
| Successful after stent adjustment | 68 (5.1%) |
| Unsuccessful | 10 (0.8%) |
| Satisfactory occlusion immediately after PED treatment | |
| Complete occlusion | 193 (14.6%) |
| Incomplete occlusion | 1129 (85.4%) |
| Clinical outcomes | |
| mRS score | |
| PrePED mRS score | |
| 0–2 | 1060 (90.5%) |
| 3–6 | 111 (9.5%) |
| PostPED mRS score (< 30 days) | |
| 0–2 | 1094 (93.4%) |
| 3–6 | 77 (6.6%) |
| mRS score at follow-up | |
| 0–2 | 1111 (94.9%) |
| 3–6 | 60 (5.1%) |
| Mean imaging follow-up time (months) | 8.96 ± 7.50 |
| Imaging follow-up distribution (no. of patients)‡ | |
| 3 months | 250 (18.9%) |
| 6 months | 629 (47.6%) |
| 12 months | 211 (16.0%) |
| 24 months | 73 (5.5%) |
| 36 months | 44 (3.3%) |
| Imaging loss to follow-up | 313 (23.7%) |
| Clinical loss to follow-up | 0 (0.0%) |
Data are shown as n (%), n/N (%), or the mean ± SD
*A total of 858 patients with 967 aneurysms underwent angiography follow-up
†The total number of PEDs used was 1319
‡There was more than one follow-up visit for the same patient