The blood pressure paradox in acute ischemic stroke

Abstract

Objective: To explore the association of poststroke baseline blood pressure with cerebral collateral flow and functional outcome in acute ischemic patients with large vessel occlusion/stenosis. Methods: Patients identified with large vessel occlusion/stenosis with baseline multimodal computed tomography, follow-up imaging, and complete clinical profiles were included. A 90-day modified Rankin Scale of 0–1 was defined as an excellent functional outcome. Cerebral collateral flow was quantified by the volume ratio of tissue within the delay time >3 seconds perfusion lesion with severely delayed contrast transit (delay time >3 seconds/delay time >6 seconds). Results: There were 306 patients incl..