Patient characteristics and diagnostic tests performeda

Characteristic
Women (%)18 (60.0)
Age (yr)64 (57–70)
Cerebrovascular risk factor, none (%)13 (43.3)
    Current smokers (%)b2 (6.7)
    Hypertension, treated (%)10 (33.3)
    Hyperlipidemia, treated (%)5 (16.7)
    Impaired glucose tolerance (%)1 (3.3)
    History of atrial fibrillation (%)5 (16.7)
    High-risk alcohol consumption (%)2 (6.7)
    Previous cerebrovascular event (%)3 (10.0)
Approximate duration of anterograde amnesia (hr)12 (4–17)
Previous episode of TGA (%)3 (10.0)
Documented triggering event, any (%)16 (53.3)
     Emotional (%)9 (30.0)
     Physical (%)7 (23.3)
CTP
    Delay from TGA onset (hr)6 (4–10)
    Anterograde amnesia still present (%)20 (66.7)
    Hippocampi well-visualized on CTP (%)14 (46.7)
EEG (%)23 (76.7)
    Delay from onset (hr)21 (7–27)
    Abnormalities (all nonspecific)10 (33.3)
DWI (%)10 (33.3)
    Delay from onset (days)2 (1–3)
    Punctate hippocampal lesions (%)2 (6.7)

  • Note:—EEG indicates electroencephalography.

  • ↵a Data are shown as No. (%) for categoric variables and median ± interquartile range for continuous variables.

  • ↵b Four additional patients (13.3%) did smoke in the past.