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Hypertension is common in patients with intracerebral hemorrhage (ICH) and is associated with hematoma expansion and worse outcomes. INTERACT3 demonstrated that a bundle of care including intensive blood pressure–lowering can improve outcomes after ICH. But questions remain about the optimal timing, intensity, and duration of blood pressure–lowering in the hyperacute setting after ICH and the precise nature of hematoma expansion along the causal pathway. Now, researchers have conducted an observational cohort study, including 312 adults (mean age, 70 years; 65% male) with intracerebral hemorrhage and initial systolic blood pressure ≥150 mm Hg who underwent brain computed tomography within 6 hours after onset at 4 centers over a 4.5-year per…