Minor and major haemorrhagic events
| Variable | Haemorrhagic events | P value | |
| Positive | Negative | ||
| Number of aneurysms | 32 | 116 | |
| Fisher grade (%) | |||
| Grade 1–2 | 5 (15.6%) | 17 (14.7%) | 0.79 |
| Grade 3–4 | 24 (75.0%) | 61 (52.6%) | |
| Mean | 3.4±0.8 | 3.3±0.9 | 0.99 |
| Hunt and Hess Scale (%) | |||
| Grade 1–2 | 10 (31.3%) | 29 (25.0%) | 0.78 |
| Grade 3–5 | 20 (62.5%) | 51 (44.0%) | |
| Mean | 3.0±1.1 | 3.0±1.1 | 0.93 |
| Ruptured aneurysm | 29 (90.1%) | 80 (69.0%) | 0.01 |
| Platelet count at admission | 234.6±57.5 | 241.6±63.7 | 0.50 |
| Delta platelet count 24 hours after the procedure | 17.2±54.4 | 19.9±49.4 | 0.77 |
| Platelet count ratio* | 0.94±0.20 | 0.93±0.19 | 0.94 |
| Haemoglobin at admission | 12.8±1.9 | 12.6±1.7 | 0.31 |
| Delta haemoglobin 24 hours after the procedure | 1.2±1.5 | 1.4±1.3 | 0.75 |
| Haemoglobin ratio* | 0.92±0.14 | 0.89±0.10 | 0.49 |
| Heparin dose | 2719±1276 | 3181±1591 | 0.16 |
| Time of tirofiban (min)† | 83.2±68.2 | 95.1±64.7 | 0.10 |
| Duration of tirofiban infusion (min) | 318.3±389.3 | 470.4±769 | 0.29 |
| Time of EVD (mean) (hour)‡ | 11.9 | 21.2 | 0.55 |
| Discharge to home | 7 (21.9%) | 59 (50.9%) | <0.01 |
*Ratio between admission and 24 hours concentration.
†Time between start of the procedure and initiation of the infusion of tirofiban and administration of DAPT.
‡Time between EVD placement and initiation of the infusion of tirofiban and administration of DAPT.
DAPT, dual antiplatelet therapy; EVD, external ventricular device.