Safety and effectiveness of mechanical thrombectomy for primary isolated distal vessel occlusions: A monocentric retrospective comparative study |
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Institution: | 1. GRC-14 BiosFast, Sorbonne University, Paris, France;2. Department of Neuroradiology, Pitié-Salpêtrière Hospital, Paris, France;3. Department of Neurology, Faculty of Medicine, Tanta University, Egypt;4. Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS Hôpital Pitié-Salpêtrière, Paris, France;5. AP-HP, Urgences Cérébro-Vasculaires, Hôpital Pitié-Salpêtrière, DMU Neuroscience, 75013, Paris, France;6. Department of Neurology, Faculty of Medicine, Alexandria University, Egypt |
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Abstract: | BackgroundDistal vessel occlusions represent about 25-40% of acute ischemic stroke (AIS), either as primary occlusion or secondary occlusion complicating mechanical thrombectomy (MT) for large vessel occlusion.ObjectiveOur aim was to evaluate safety and effectiveness of MT associated with the best medical treatment (BMT) in the management of AIS patients with distal vessel occlusion in comparison with the BMT alone.MethodsRetrospective analysis was conducted on AIS patients treated by MT+BMT for primary distal vessel occlusion between 2015 and 2020, and were compared with a historic cohort managed by BMT alone between 2006 and 2015 selected based on the same inclusion criteria. A secondary analysis was conducted using propensity score matching (PSM) including the following: NIHSS, age and treatment with intravenous thrombolysis (IVT) as covariates.ResultsOf 650 patients screened, 44 patients with distal vessel occlusions treated by MT+BMT were selected and compared with 36 patients who received BMT alone. After PSM, 28 patients in each group were matched without significant difference. Good clinical outcome defined as mRS≤2 was achieved by 53.6% of the MT+BMT group and 57% of the BMT group (OR, 0.87; 95%CI, 0.3–2.4; p = 1.00). The mortality rate was comparable in both groups (7% vs. 10.7% in MT+BMT and BMT patients, respectively; OR=0.64; 95%CI, 0.1-4; p = 1.00). Symptomatic intracranial hemorrhage (ICH) was seen in only one patient treated by MT+BMT (3.6%).ConclusionMechanical thrombectomy seems to be comparable with the best medical treatment regarding the effectiveness and safety in the management of patients with distal vessel occlusions. |
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Keywords: | MCA"} {"#name":"keyword" "$":{"id":"pc_1EZcQaG4r9"} "$$":[{"#name":"text" "_":"Middle cerebral artery |
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