Table 2. Demographics and Clinical Characteristics.
| Demographics | |
|---|---|
| Mean age (yrs) | 56.9 (STD 15.2) |
| Gender | 40 (69.0%) Female |
| 18 (31.0%%) Male | |
|
| |
| Clinical Characteristics | |
| Hunt and Hess Grade | n (%) |
| Grade 1 | 11 (19.0%) |
| Grade 2 | 11 (19.0%) |
| Grade 3 | 14 (24.1%) |
| Grade 4 | 11 (19.0%) |
| Grade 5 | 11 (19.0%) |
| Fisher Grade | n (%) |
| Grade 1 | 0 (0.00%) |
| Grade 2 | 0 (0.00%) |
| Grade 3 | 49 (84.5%) |
| Grade 4 | 9 (15.5%) |
| Location of Aneurysm | n (%) |
| Distal ICA | 14 (24.1%) |
| ACA | 6 (10.3%) |
| MCA | 7 (12.1%) |
| PCA | 2 (3.4%) |
| Acomm | 12 (20.1%) |
| Pcomm | 8 (13.8%) |
| Basilar | 4 (6.9%) |
| Other | 5 (8.6%) |
|
| |
| Total number of DIND events | 67 |
| Total number of DIND events with unanimous agreement between raters | 9/67 (13.4%) |
| Total number of DIND events where at least 3/5 raters agreed | 26/67 (38.8%) |
| Median delay from date of bleed to detection of DIND | 5 days |
|
| |
| Other clinical characteristics | n (%) |
| Hydrocephalus requiring EVD | 45 (77.6%) |
| Seizures on admission | 9 (15.5 %) |
| Post op stroke/ICH | 4 (6.9%) |
| Intra op re-rupture | 5 (8.6%) |
| Need for mechanical ventilation | 30 (51.7%) |
Abbreviations; ICA: internal carotid artery; ACA: anterior cerebral artery; MCA: middle cerebral artery; PCA: posterior cerebral artery; Acomm: anterior communicating artery; Pcomm: posterior communicating artery; EVD: external ventricular drain.