Clinical presentations of the patients
| Presentation | No. of Patients | % |
|---|---|---|
| Incidentala | 23 | 12 |
| Headache | 83 | 43.5 |
| Subarachnoid hemorrhageb | 31c,d | 16.2 |
| Previous SAH from another aneurysm | 19 | 10 |
| Visual findings due to mass effect | 28d | 14.7 |
| Othere | 8 | 4.2 |
| Total | 191d | 100 |
↵a Incidental group includes asymptomatic patients and patients with symptoms (excluding SAH) unrelated to the aneurysms treated with a PED (ie, index aneurysms).
↵b SAH from the aneurysm treated with a PED.
↵c Nine of these patients, 6 of whom were in the acute stage, were treated with the Pipeline as the first treatment; 22 patients had a PED in the retreatment.
↵d One of these patients had visual findings after the initial treatment and received a PED as a retreatment; this patient is cited in both groups.
↵e All symptoms (eg, ataxia, paresthesia, hemi-/quadriparesis, and so forth) other than those listed above, which may be due to mass effect and/or ischemia (such as perforator injury) and so forth.