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Table 2: Clinical outcomes
Outcome Procedure No. (%)
Periprocedural outcomes (within 30 days) 
 Major adverse events^{^a} 
  Death from subdural hemorrhage 1 (2.3)
  Cranial nerve palsy^{^b} 1 (2.3)
 Minor adverse events 
  Stroke/TIA 1 (2.3)
  Headache^{^b} 1 (2.3)
Postprocedure outcomes (30 days to 1 yr) 
 Major adverse events^{^a} 
  Pulsatile tinnitus (carotid cavernous fistula) 1 (2.3)
  Mass effect causing reduced visual acuity 1 (2.3)
↵a An ongoing clinical event at 7 days following the event.
↵b Same patient.

Outcome	Procedure No. (%)
Periprocedural outcomes (within 30 days)
Major adverse events^{^a}
Death from subdural hemorrhage	1 (2.3)
Cranial nerve palsy^{^b}	1 (2.3)
Minor adverse events
Stroke/TIA	1 (2.3)
Headache^{^b}	1 (2.3)
Postprocedure outcomes (30 days to 1 yr)
Major adverse events^{^a}
Pulsatile tinnitus (carotid cavernous fistula)	1 (2.3)
Mass effect causing reduced visual acuity	1 (2.3)