Table 1.
Characteristics of patients and treatments, and results after procedure
| JR-NET3 (n = 1211) | ||
|---|---|---|
| Mean ± SD or n (%) | ||
| Age | 59.5 ± 14.4 | |
| Sex | ||
| Female | 803 | 66.3% |
| Male | 408 | 33.7% |
| Treatment for ruptured aneurysm | ||
| Direct surgery | 703 | 58.1% |
| Endovascular embolization | 469 | 38.7% |
| Target vessel | ||
| Anterior circulation | 1079 | 89.1% |
| Posterior circulation | 91 | 7.5% |
| Both circulation | 32 | 2.6% |
| Distribution | ||
| Proximal vessel | 754 | 62.3% |
| Distal vessel | 329 | 27.2% |
| Diffuse type | 119 | 9.8% |
| Responsible doctor | ||
| Supervisory doctor | 368 | 30.4% |
| Specialist | 666 | 55.0% |
| Non-specialist | 177 | 14.6% |
| Anesthesia | ||
| General | 118 | 9.8% |
| Local | 1092 | 90.2% |
| Number of times | ||
| The first time | 879 | 72.6% |
| Over and second times | 331 | 27.3% |
| Timing (h) | ||
| <3 | 378 | 31.2% |
| 3–6 | 349 | 28.8% |
| >6 | 245 | 20.2% |
| Strategy | ||
| IA-vasodilators | 948 | 78.3% |
| PTA | 259 | 21.4% |
| Improvement on imaging study | 1171 | 96.7% |
| Neurological improvement | 670 | 55.3% |
| Complication | ||
| Mechanical hemorrhage | 4 | 0.3% |
| Non-mechanical hemorrhage | 11 | 0.9% |
| Ischemia | 19 | 1.6% |
| Dissection | 2 | 0.2% |
IA: intra-arterial, PTA: percutaneous transluminal angioplasty, SD: standard deviation.