Background
Recently, the Basilar Artery on Computed Tomography Angiography (BATMAN) score predicts
clinical outcome of acute basilar artery occlusion (BAO), yet there is no extensive
external validation. The purpose of this study was to validate the prognostic value
of BATMAN scoring system for the prediction of clinical outcome in patients with acute
BAO treated with endovascular mechanical thrombectomy by using cerebral digital subtraction
angiography (DSA).
Methods
We analyzed the clinical and angiographic data of consecutive patients with acute
BAO from March 2012 to November 2016. The BATMAN scoring system was used to assess
the collateral status and thrombus burden. Thrombolysis in Cerebral Infarction (TICI)
score 2b-3 was defined as successful recanalization. Receiver operating characteristic
(ROC) curve was used to determine the area under the curve (AUC) and the optimum cutoff
value. Multivariate regression analysis was used to identify the predictor of clinical
outcome.
Results
This study included 63 patients with acute BAO who underwent mechanical thrombectomy.
Of these patients, 90.5% (57/63) achieved successful recanalization (TICI, 2b-3) and
34.9% (22/63) had a favorable outcome (modified Rankin Scale score 0-2). ROC analysis
indicated that the AUC of the BATMAN score was .722 (95% confidence interval [CI],
.594-.827), and the optimal cutoff value was 3 (sensitivity = 72.73, specificity = 63.41).
In multivariate logistic regression analysis, the BATMAN score higher than 3 was associated
with favorable outcome (odds ratio, 5.214; 95% CI, 1.47-18.483; P = .011).
Conclusions
The BATMAN score on DSA seems to predict the functional outcome in patients of acute
BAO treated with mechanical thrombectomy.
Key Words
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Article info
Publication history
Published online: February 05, 2018
Accepted:
January 5,
2018
Received in revised form:
December 26,
2017
Received:
November 11,
2017
Footnotes
Grant support: This work was supported by the National Natural Science Foundation of China (Contract grant number: 81471390 to N.M., 81371290 to Z.R.M.), Beijing High-level Personnel Funds (Contract grant number: 2013-2-19 to Z.R.M.).
Identification
DOI: https://doi.org/10.1016/j.jstrokecerebrovasdis.2018.01.007
Copyright
© 2018 National Stroke Association. Published by Elsevier Inc. All rights reserved.
