Table 2.

Serious procedure-related adverse events as determined by the Clinical Events Committee

Adverse events	MCA M1 (n=126)	MCA M2 (n=57)	P value*
Procedure-related serious adverse events	4 (3.2%)	5 (8.8%)	0.1396
Postprocedural subarachnoid hemorrhage	2 (1.6%)	2 (3.5%)	0.5896
Vessel perforation	2 (1.6%)	0 (0%)	1.0000
Carotid artery dissection	0 (0%)	1 (1.8%)	0.3115
Cerebral artery occlusion	0 (0%)	1 (1.8%)	0.3115
Ischemic stroke (iatrogenic)	1 (0.8%)	0 (0%)	1.0000
Neurological decompensation	0 (0%)	1 (1.8%)	0.3115
Vessel puncture site hemorrhage	0 (0%)	1 (1.8%)	0.3115
Vessel puncture site thrombosis	0 (0%)	1 (1.8%)	0.3115
Symptomatic intracranial hemorrhage within 24 hours	6 (4.8%)	2 (3.5%)	1.0000
Procedure-related mortality (at 7 days postprocedure)	0	0	–

*For categorical variables, p values are generated using a χ² test or a Fisher’s exact test (due to expected cell sizes <5), as appropriate.

MCA, middle cerebral artery.