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  • Title: Three-month and long-term outcomes and their predictors in acute basilar artery occlusion treated with intra-arterial thrombolysis.
    Author: Jung S, Mono ML, Fischer U, Galimanis A, Findling O, De Marchis GM, Weck A, Nedeltchev K, Colucci G, Mordasini P, Brekenfeld C, El-Koussy M, Gralla J, Schroth G, Mattle HP, Arnold M.
    Journal: Stroke; 2011 Jul; 42(7):1946-51. PubMed ID: 21546481.
    Abstract:
    BACKGROUND AND PURPOSE: Intra-arterial thrombolysis can be used for treatment of basilar artery occlusion. Predictors of outcome before initiation of treatment are of special interest. METHODS: From 1992 to 2010, we treated 106 consecutive patients with basilar artery occlusion with intra-arterial thrombolysis. Baseline characteristics, treatment, clinical course, and 3-month and long-term outcomes (≥12 months) were assessed. Outcome parameters were vessel recanalization after treatment, complications, modified Rankin scale (mRS) score, and mortality after 3 months and in the long-term. RESULTS: At 3 months, clinical outcome was good (mRS score, 0-2) in 33.0% of the patients and moderate (mRS score, 3) in 11.3%. Mortality was 40.6%. Partial or complete recanalization was achieved in 69.8% of the patients, and symptomatic intracranial hemorrhage occurred in 1 patient (0.9%). Between 3-month and long-term follow-up, 22 survivors (40.8%) showed clinical improvement of at least 1 point on the mRS score, 29 (53.7%) were functionally unchanged, and 3 (5.7%) showed functional worsening (P<0.0001). Multivariate analysis identified diabetes as a predictor of poor vessel recanalization (P=0.028). Low baseline National Institutes of Health Stroke Scale score was identified as a predictor of good or moderate clinical outcome (P<0.0001) and survival (P=0.001) at 3 months, and younger age was identified as an additional predictor of survival (P=0.012). For prediction of long-term clinical outcome, age was also an independent predictor (P=0.018). CONCLUSIONS: In our series, intra-arterial thrombolysis as treatment of basilar artery occlusion was safe. National Institutes of Health Stroke Scale score at admission and age were identified as predictors of outcome, and these predictors should be considered for treatment allocation in future randomized trials.
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