Table 1:

Major procedural complications

	Present	Absent	Percentage
Symptomatic cerebral hemorrhage	7	137	4.9%
Air emboli	2	142	1.4%
Emboli to new vascular territory	1	143	0.7%
Serious groin complication	4	140	2.8%
Vessel dissection	5	139	3.5%
Total number of patients	18	126	12.5%