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  • Title: Large-bore aspiration catheter selection does not influence reperfusion or outcome after manual aspiration thrombectomy.
    Author: Tonetti DA, Desai SM, Casillo S, Zussman BM, Brown MW, Jadhav AP, Jankowitz BT, Jovin TG, Gross BA.
    Journal: J Neurointerv Surg; 2019 Jul; 11(7):637-640. PubMed ID: 30733300.
    Abstract:
    INTRODUCTION: Various large-bore catheters can be employed for manual aspiration thrombectomy (MAT); clinical differences are rarely explored. METHODS: Prospectively collected demographic, angiographic, and clinical data for patients with acute internal carotid artery, middle cerebral artery M1, or basilar occlusions undergoing MAT over 23 months at a comprehensive stroke center were reviewed. We excluded patients in stentriever-based randomized trials/registries. The four most commonly utilized aspiration catheters were analyzed, and multivariate logistic regression analyses were performed to determine the effect of primary aspiration catheter choice on first-pass success, final reperfusion, and modified Rankin Scale (mRS) score at 90 days. RESULTS: Of 464 large vessel thrombectomies, 180 were performed via MAT on the first pass with one of four catheters. First-pass success was achieved in 42% of cases overall; this rate did not differ significantly between catheters: 50% for Sofia, 45% for CAT6, 40% for 0.072 inch Navien, and 36% for ACE68, p=0.67. Final Thrombolysis in Cerebral Infarction 2b or 3 reperfusion was achieved in 94% of cases overall: 97% of cases with CAT6, 95% with Sofia, 92% with Navien, and 92% with ACE68, p=0.70. Mean number of passes for index thrombus (2.0 overall), median procedure time (32 min overall), 90-day good outcome (mRS 0-2, mean 36%), and 90-day mortality (mean 27%) did not differ significantly between patients treated with different initial catheters. CONCLUSION: Among large-bore aspiration catheters, catheter selection is not an independent predictor of first-pass success, final reperfusion, or clinical outcome.
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