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Table 1: 
Patient characteristics (demographics, cardiovascular risk, procedure features, and aortic arch type)
Patient Characteristics
Age (yr)
    Median (Interquartile range)55 (50–68)
Sex
    Female (No.) (%)20 (61%)
    Male (No.) (%)13 (39%)
Cardiovascular risk factorsa (No.) (%)
    012 (34%)
    16 (16%)
    ≥217 (50%)
Procedure type (No.) (%)
    Diagnostic/follow-up angiography23 (66%)
    Intracranial embolization9 (16%)
    Mechanical thrombectomy3 (8%)
Anesthesia (No.) (%)
    Conscious sedation26 (74%)
    General anesthesia9 (26%)
Noninvasive imaging for navigation (No.) (%)
    CTA12 (34%)
    MRA23 (66%)
Aortic arch type (No.) (%)
    I20 (57%)
    II8 (23%)
    III7 (20%)
    Bovine variant9 (26%)
  • ↵a We considered smoking, high blood pressure, high low-density lipoprotein and low high-density lipoprotein cholesterol levels, age, and obesity.