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2025 article

Effects of Intensive Blood Pressure Lowering on Brain Swelling in Thrombolyzed Acute Ischemic Stroke: The ENCHANTED Results

4Citations signalées, ce qui n’est pas une note de qualité
12Institutions déclarées
4Pays d’affiliation déclarés

Rattachement africain : cn, au, gb, cl. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

BACKGROUND: Cerebral swelling in relation to cytotoxic edema is a predictor of poor outcome in acute ischemic stroke (AIS) and elevated blood pressure (BP) promotes its development. Whether intensive BP-lowering treatment reduces cerebral swelling is uncertain. We aimed to determine whether intensive BP lowering reduces the severity of cerebral swelling after thrombolysis for AIS. METHODS: A secondary analysis of the ENCHANTED (Enhanced Control of Hypertension and Thrombolysis Stroke Study), a partial factorial, international, multicenter, open-label, blinded end point, randomized controlled trial of alteplase dose and levels of BP control in thrombolyzed patients with AIS. Participants were randomly assigned to intensive (systolic target 130–140 mm Hg within 1 hour; maintained for 72 hours) or guideline-recommended (systolic target <180 mm Hg) BP management. Available serial brain images (baseline and follow-up, computed tomography, or magnetic resonance imaging) were centrally analyzed with standardized techniques (Apollo MIStar software) by expert readers blind to clinical details to rate swelling severity (from 0 no to 6 most severe swelling [midline shift and effacement of basal cisterns]) and other abnormalities. Primary outcome was any cerebral swelling (score, 1–6) in logistic regression models. RESULTS: Of 1477/2196 (67.3%) patients (mean age, 67.7 years; female, 39.6%) with sequential scans, the between-group mean systolic BP difference was 6.6 mm Hg over 24 hours. No significant difference was found in the treatment effect on any cerebral swelling between intensive and guideline-recommended BP management (22.12% versus 22.39%, adjusted odds ratio, 1.05 [95% CI, 0.81–1.36]; P =0.71). Results were consistent across different groups of swelling severity (swelling score 2–6, 3–6, and 4–6; and ordinal shift on swelling score). CONCLUSIONS: Modest early intensive BP lowering does not seem to alter cerebral swelling in thrombolyzed patients with AIS. Further research is needed to quantify brain edema to allow a better understanding of the complex relations of BP and outcomes from AIS. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01422616.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Effects of Intensive Blood Pressure Lowering on Brain Swelling in Thrombolyzed Acute Ischemic Stroke: The ENCHANTED Results
Date Crossref
01/06/2025
Éditeur
Ovid Technologies (Wolters Kluwer Health)
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

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Les sujets associés

Acute Ischemic Stroke ManagementTraumatic Brain Injury and Neurovascular DisturbancesS100 Proteins and Annexins

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