Abstract
Background: Optimal Blood pressure management after thrombectomy for acute ischemic stroke and its association with clinical outcomes remains unclear. We performed this study to compare clinical outcomes between intensive systolic blood pressure (SBP) control (<120-140mmHg) and conventional SBP control (< 180mmHg). Methods: In September 2023, this registered systematic review (CRD42023464176) was performed using multiple databases for the following keywords: stroke, thrombectomy, and Blood Pressure from 2010 to present. Randomized control studies were included if they had the reported the outcome for adults aged >18 who underwent successful thrombectomy (defined as mTICI 2b or higher) for acute ischemic stroke. The primary outcome of interest was the rate of functional independence, defined as a modified Rankin scale of 0-2 at 90 days. The secondary outcomes of interest included rates of mortality, and symptomatic intracranial hemorrhage (sICH). For all outcome events, corresponding odds ratios (OR) and 95% confidence intervals (CI) were calculated using a random-effects meta-analysis model. Results: Four studies comprising 1497 patients were included. Compared to conventional SBP control, intensive SBP control was associated with lower rates of functional independence (OR 0.67, 95% CI 0.51- 0.88 p=0.0). There were comparable rates of sICH (OR 1.12, 95% CI 0.75-1.67; p = 0.56) and mortality (OR 1.21, 95% CI 0.90-1.64; p = 0.19) between intensive and conventional SBP control groups. Conclusions: Our findings suggest that intensive blood pressure control does not improve clinical outcomes. More robust data is needed to draw definite conclusions.
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