Procedural complications, clinical significance, and procedure-related mortality and morbidity
| GDCs | Matrix Coils | Total | |
|---|---|---|---|
| Complications | 38/194 (19.6)* | 19/123 (15.6) | 57/317 (18) |
| Mortality | 7/187 (3.7) | 3/120 (2.5) | 10/307 (3.3) |
| Morbidity | 5/187 (2.7) | 2/120 (1.7) | 7/307 (2.3) |
| Aneurysm rupture | 13/194 (6.7) | 6/123 (4.9) | 19/317 (6) |
| Mortality | 3/187 (1.6) | 1/120 (0.8) | 4/307 (1.3) |
| Morbidity | 1/187 (0.5) | 1/120 (0.8) | 2/307 (0.7) |
| Thromboembolic | 11/194 (5.7) | 7/123 (5.7) | 18/317 (5.7) |
| Mortality | 2/187 (1.1) | 1/120 (0.8) | 3/307 (1) |
| Morbidity | 2/187 (1.1) | 1/120 (0.8) | 3/307 (1) |
| Parent artery occlusion | 3/194 (1.6) | 1/123 (0.8) | 4/317 (1.3) |
| Mortality | 1/187 (0.5) | 0 | 1/307 (0.3) |
| Morbidity | 1/187 (0.5) | 0 | 1/307 (0.3) |
| Loop prolapse | 4/194 (2.1) | 3/123 (2.4) | 7/317 (2.2) |
| Mortality | 0 | 1/120 (0.8) | 1/307 (0.3) |
| Morbidity | 1/187 (0.5) | 0 | 1/307 (0.3) |
| Coil breakage | 4/194 (2.1) | 0 | 4/317 (1.3) |
| Mortality | 0 | 0 | 0 |
| Morbidity | 0 | 0 | 0 |
| Hemorhage following angioplasty | 1/194 (0.5) | 0 | 1/317 (0.3) |
| Mortality | 1/187 (0.5) | 0 | 1/307 (0.3) |
| Morbidity | 0 | 0 | 0 |
| ICA dissection | 2/194 (1) | 2/123 (1.6) | 4/317 (1.3) |
| Mortality | 0 | 0 | 0 |
| Morbidity | 0 | 0 | 0 |
Note:—GDC indicates Gugliemi detachable coil; ICA, internal carotid artery.
* Values in parentheses are percentages.