There are several disturbing statements in the paper by Schumacher et al. The paper is entitled "Right-Sided Brain Lesions. . ." but only eight patients who happened to have right-sided lesions after extracorporeal membrane oxygenation were discussed. The authors implied that intracranial hemorrhages were unusually distributed, with a unique predominance of right-sided lesions. What were the findings in the other 61 patients treated at the University of Michigan? Were there no left-sided or bilaterally distributed lesions in that population? How many infants had neuroimaging studies other than cranial sonography performed to document the presence of intracranial lesions? How can he infer that there is a predominance of right-sided lesions when the authors did not include the acute neurologic, neuroimaging, or followup data in the whole population treated.

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