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Table 4: 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.