Collateral Circulation

The RESCUE-BP is a multi-centered, prospective, randomized, open label, blinded endpoint (PROBE) phase III trial. In patients with acute ischemic stroke who have undergone endovascular treatment and achieved successful recanalization, the evaluation will compare a stratified blood pressure management strategy based on the collateral circulation status with the guideline-recommended conventional blood pressure management strategy. Within each stratum, participants will be randomized in a 1:1 ratio to either the stratified blood pressure management strategy group or the guideline-recommended conventional blood pressure management group. The goal is to determine whether this can improve good functional outcomes at 90 days (90-day Modified Rankin Scale \[mRS\] score 0-2). The study consists of four visits including the day of randomization, 24±4 hours after randomization, 7±1 days after randomization and 90±7 days after randomization. Demographic information, symptoms and signs, laboratory test, neuro-imaging assessment, neurological function rating scale will be recorded during the program. The primary outcome is the modified Rankin Scale (mRS) score of 0 to 2 at 90±7 days after randomization. The primary safety outcome is the incidence of sICH within 24±4 hours after randomization.