National Study on Emergency Department Visits for Transient Ischemic Attack, 1992–2001

The incidence and clinical predictors of acute infarction in patients with transient ischemic attack using MRI including DWI

“…A study in Canada found that only 3 % of patients with a TIA underwent MRI [9], and a study in the USA similarly reported that less than 5 % of patients with a TIA underwent MRI as part of their diagnostic evaluation [10]. Several MRI studies have shown that evidence of DWI lesions is frequently identified in patients with TIA and appears to have prognostic significance in predicting stroke recurrence after TIA [11][12][13][14][15].…”

Evaluation of Transient Ischemic Attack in an Emergency Department Observation Unit

“…Transient ischemic attack (TIA) is a common presentation to the Emergency Department (ED), accounting for 1-3 of every 1,000 ED visits in the United States [1]. The true incidence may be higher, because many patients with TIAs never come to medical attention [2,3].…”

Antiplatelet Therapy in Management of Transient Ischemic Attack: Overview and Evidence-Based Rationale

“…Between 1992 and 2001, an estimated 3 million emergency department (ED) visits for TIA occurred (14). Whereas CT scan of the brain was performed in 56% of TIA cases, MRI study was performed in fewer than 5%.…”

“…Patients undergoing a CT scan in the ED were more likely to be admitted to the hospital (odds ratio 1.7) (14). Of these 3 million visits, only 18% received aspirin from ED staff, 7% received other antiplatelet agents, and 6% were given heparin (14).…”