Table 1:

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

^aIncidental group includes asymptomatic patients and patients with symptoms (excluding SAH) unrelated to the aneurysms treated with a PED (ie, index aneurysms).

^bSAH from the aneurysm treated with a PED.

^cNine 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.

^dOne of these patients had visual findings after the initial treatment and received a PED as a retreatment; this patient is cited in both groups.

^eAll 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.