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  • Title: Outcome of forced-suction thrombectomy in acute intracranial internal carotid occlusion.
    Author: Hwang YH, Kang DH, Kim YW, Kim YS, Park SP, Suh CK.
    Journal: J Neurointerv Surg; 2013 May; 5 Suppl 1():i81-4. PubMed ID: 22544821.
    Abstract:
    OBJECTIVES: Ischemic stroke from acute intracranial distal internal carotid artery (ICA) occlusion usually carries a poor prognosis. Despite the intra-arterial revascularization therapies, the results are still unsatisfactory. The aim of this study was to compare the outcomes between two endovascular techniques, the modified Penumbra System (mPS) and mechanical clot disruption (MCD), and to confirm the influence of recanalization on the outcomes. METHODS: In a retrospective review of 39 consecutive cases of acute distal ICA occlusion, the recanalization rates and functional outcomes at 3 months of the two intra-arterial techniques during two consecutive periods (May 2006 to February 2009: MCD technique (n=19) vs March 2009 to August 2010: mPS technique (n=20)) were compared. Univariate and multivariate analyses were performed to determine the predictors of a favorable functional outcome. RESULTS: The rate of successful recanalization (Thrombolysis In Cerebral Infarction score 2 or 3) was significantly higher in the mPS group than in the MCD group (85% (17/20) vs 32% (6/19); p=0.001). Favorable outcomes at 3 months (modified Rankin Scale score 0-2) were achieved in 9/20 and 3/19 in the mPS and MCD groups, respectively (45% vs 16%; p=0.048). Binary logistic regression analysis showed that younger age and successful recanalization were independent predictors of a favorable functional outcome. CONCLUSIONS: Forced-suction thrombectomy using the mPS technique may be a viable option for acute distal ICA occlusion and could result in more successful recanalization and a more positive clinical outcome.
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