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A Regional Network Organization for Thrombectomy for Acute Ischemic Stroke in the Anterior Circulation; Timing, Safety, and Effectiveness

Abstract : BACKGROUND: Mechanical thrombectomy (MT) in association with intravenous thrombolysis is recommended for treatment of acute ischemic stroke (AIS), with large vessel occlusion (LVO) in the anterior circulation. Because MT is only available in comprehensive stroke centers (CSC), the challenge of stroke organization is to ensure equitable access to the fastest endovascular suite. Our aim was to evaluate the feasibility, efficacy, and safety of MT in patients initially managed in 1 CSC (mothership), compared with patients first managed in primary stroke center (PSC), and then transferred to the CSC for MT (drip-and-ship). METHODS: We retrospectively analyzed 179 consecutive patients (93 in the mothership group and 86 in the drip-and-ship group), with AIS secondary to LVO in the anterior cerebral circulation and a clinical-radiological mismatch (NIHSS ≥ 8 and DWI-ASPECT score ≥5), up to 6 hours after symptoms onset. We evaluated 3-month functional modified Rankin scale (mRS), periprocedural time management, mortality, and symptomatic intracranial haemorrhage (sICH). RESULTS: Despite significant longer process time in the drip-and-ship group, mRS ≤ 2 at 3 months (39.8% versus 44.1%, P = .562), Thrombolysis in cerebral infarction 2b-3 (85% versus 78%, P = .256), and sICH (7.0% versus 9.7%, P = .515) were similar in both group regardless of baseline clinical or radiological characteristics. After multivariate logistic regression, the predictive factors for favorable outcome were age (odds ratio [OR] -5years= 1.32, P < .001), initial NIHSS (OR -5points = 1.59, P = .010), absence of diabetes (OR = 3.35, P = .075), and the delay magnetic resonance imagining-puncture (OR -30min = 1.16, P = .048). CONCLUSIONS: Our study showed encouraging results from a regional protocol of MT comparing patients transferred from PSC or brought directly in CSC.
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https://hal.umontpellier.fr/hal-02569330
Contributeur : Amandine Michel-Avella <>
Soumis le : lundi 11 mai 2020 - 11:42:28
Dernière modification le : vendredi 15 mai 2020 - 12:22:09

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Isabelle Mourand, Pauline Malissart, Cyril Dargazanli, Erika Nogué, Stephane Bouly, et al.. A Regional Network Organization for Thrombectomy for Acute Ischemic Stroke in the Anterior Circulation; Timing, Safety, and Effectiveness. Journal of Stroke and Cerebrovascular Diseases, WB Saunders, 2019, 28 (2), pp.259-266. ⟨10.1016/j.jstrokecerebrovasdis.2018.09.051⟩. ⟨hal-02569330⟩

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