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Table 1:

Comparison of procedural ruptures in 196 very small aneurysms and 1099 larger aneurysms

196 Aneurysms ≤ 3 mm in 187 Patients1099 Aneurysms ≥ 4 mm in 1006 PatientsTotal 1295 Aneurysms in 1193 Patients
Procedural ruptures15 (7.7%)36 (3.6%)51 (3.9%)
Ruptured aneurysms15 (100%)32 (88.9%)47 (92.2%)
Poor condition at treatment (HH III–V)3 (20%)15 (41.7%)18 (35.3)
Poor outcome (GOS 1–3)5 (33.3%)11 (30.6%)16 (31.4%)
  • Note:—HH indicates Hunt and Hess grade; GOS, Glasgow Outcome Scale.