Research Article: Collateral Status Modification of the Association Between Blood Pressure Variation Within Hours After Endovascular Treatment and Clinical Outcome in Acute Ischemic Stroke: A Retrospective Cohort Study
Abstract:
Endovascular treatment (EVT) is an approved therapy for patients with acute ischemic stroke due to large vessel occlusion (LVO).– Although –% of patients could obtain complete recanalization, patients with poor baseline collateral status have a higher risk of increased infarct volume and a worse clinical outcome, regardless of recanalization status.– The potential mechanism may be that collateral circulation could maintain the perfusion of the ischemic penumbra, thus reducing ischemic necrosis of brain tissue.–, Previous studies have shown that blood pressure (BP) metrics within h after EVT were dissimilarly associated with clinical outcomes in different collateral status.– In patients with poor collateral status, higher systolic blood pressure (SBP) and larger SBP and DBP variations within hours after EVT were associated with worse neurological outcomes. Further studies revealed that in patients with poor collateral status, a mean SBP value of more than mmHg within hours after EVT was related to poor neurological function, and no significant correlation was observed in patients with good collateral status. However, available studies mainly focused on the relationship between blood pressure variation (BPV) and clinical outcome within hours after EVT in patients with LVO, and the relationship between BPV and clinical outcome within hours after EVT remains unclear. Therefore, this study intended to retrospectively collect LVO patients who received EVT and aimed to investigate the relationship between blood pressure variation within hours after EVT and clinical outcome under different collateral status.
Introduction:
Endovascular treatment (EVT) is an approved therapy for patients with acute ischemic stroke due to large vessel occlusion (LVO). – Although –% of patients could obtain complete recanalization, patients with poor baseline collateral status have a higher risk of increased infarct volume and a worse clinical outcome, regardless of recanalization status. – The potential mechanism may be that collateral circulation could maintain the perfusion of the ischemic penumbra, thus reducing ischemic necrosis of brain tissue. –…
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