Summary of studies of patients with poor-grade subarachnoid hemorrhage treated with early endovascular coiling
| Study (yr) | No. of Patients | Methodology | Good Outcome (%) | Mortality Rate (%) |
|---|---|---|---|---|
| Bracard et al5 (2002) | 80 | Included HH grades 4 and 5, good outcome GOS 1 or 2, up to 1 year follow-up | 52.5 (GOS 1–2) 8.75 GOS 3 | 37.5 |
| van Loon et al6 (2002) | 11 | WFNS grade V, outcome measure GOS, mean follow-up 12 months | 36 | 18 |
| Weir et al7 (2003) | 27 | HH grades 4 and 5, outcome assessed by mRS, mean follow-up 23 months | 30 | 59 |
| Jain et al8 (2004) | 13 | Older than 70 yr, poor HH grades 4 and 5, outcome measure GOS | 15 | 47 |
| Bergui and Bradac9 (2004) | 45 | 48 | 44 | |
| Suzuki et al10 (2006) | 111 | HH grades 4/5, outcome by mRS, follow-up ≤24 mo | 35.1 | 32.4 |
| Pereiera et al11 (2007) | 51 | Outcome by GOS at 12 mo, GOS 1–3 considered good; 4–5, poor | 57 | 35 |
| Taylor et al12 (2011) | 47 | WFNS grades IV/V, 6-month GOS for outcome | 53 | 27 |
Note:—GOS indicates Glasgow Outcome Scale; HH, Hunt and Hess.