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We found ipsilateral infarcts in 32 patients(80%;99%confidence interval[ CI],64%to 96%)and contralateral infarcts in 12 patients(30%;99%CI,11%to 49%).Infarcts ipsilateral to the ICA occlusion were more likely to be cortical(odds ratio,9.33;99%CI,2.4 to 36.35)or subcortical infarcts 15 mm or greater(odds ration,16.71;99%CI,1.05 to 267.3).The prevalence of subcortical infarcts less than 15 mm did not differ between hemispheres. Symptomatic infarcts related to an ICA occlusion are more likely to be cortical or large subcortical infarcts.Small subcortical infarcts have the same prevalence in both hemispheres and therefore may be coincidental. |
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