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. 2010;63(4):221-6.
doi: 10.1159/000279619. Epub 2010 Mar 11.

Diameter of the basilar artery may be associated with neurological deterioration in acute pontine infarction

Junya Aoki  1 , Yasuyuki Iguchi, Kazumi Kimura, Kensaku Shibazaki, Takeshi Iwanaga, Kenichiro Sakai
Affiliations

Diameter of the basilar artery may be associated with neurological deterioration in acute pontine infarction

Junya Aoki et al. Eur Neurol. 2010.

Abstract

Purpose: The present study investigated the factors related to neurological deterioration in pontine infarction.

Methods: Consecutive patients with acute pontine infarction without basilar artery (BA) occlusion were enrolled. Patients were classified into two groups (D, group with neurological deterioration; ND, group without neurological deterioration). After magnetic resonance angiography was performed to identify the diameters of internal carotid artery (ICA) and BA, the BA diameter/ICA diameter (BA/ICA) ratio was calculated. When the ischemic lesion on diffusion-weighted magnetic resonance imaging extended to the ventral basal pial surface, it was diagnosed as branch atheromatous disease (BAD).

Results: Neurological deterioration occurred in 16 (31%) of 51 patients. BAD was found in 13 (81%) of 16 patients of the D group and 14 (40%) of 35 in the ND group (p = 0.008). The BA/ICA ratio was 0.73 (0.59-0.84) in the D group and 0.64 (0.55-0.71) in the ND group (p = 0.049). Multivariate regression analysis demonstrated that BAD (OR 15.62, 95% CI 2.37-103.13, p = 0.004) and a BA/ICA ratio of >or=0.70 (OR 7.76, 95% CI 1.55-38.88, p = 0.013) were independent factors associated with neurological deterioration.

Conclusion: The BA diameter may be associated with neurological deterioration in acute pontine infarction.

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