Biochemical Aspirin Resistance and Recurrent Lesions in Patients with Acute Ischemic Stroke

117 consecutive patients admitted within 24 h of symptom onset with acute ischemic stroke confirmed by DWI, who underwent follow-up DWI within seven days after onset and received aspirin treatment.

Biochemical aspirin resistance (BAR) measured using the VerifyNow Aspirin Assay

Absence of biochemical aspirin resistance

Early recurrent ischemic lesions (ERILs) on follow-up DWI within seven days after onset, including overall ERILs and distant ERILs (outside the vascular territories of index stroke)surrogate