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Comment & Response
April 2017

Not All Middle Cerebral Artery M2 Segments Are the Same

Author Affiliations
  • 1Alpert Medical School, Brown University, Providence, Rhode Island
  • 2Comprehensive Stroke Center, Rhode Island Hospital, Providence, Rhode Island
JAMA Neurol. 2017;74(4):486-487. doi:10.1001/jamaneurol.2016.6168

To the Editor In the research article “Endovascular Therapy for Acute Ischemic Stroke With Occlusion of the Middle Cerebral Artery M2 Segment,” Sarraj and colleagues1 describe the advantage of endovascular therapy in addition to best medical therapy for patients with acute M2 occlusions. The article does not describe the distribution of the left- and right-sided lesions. It would be of interest to know whether the overall benefits hold true regardless of lesion lateralization or whether the results are primarily driven by benefits on one side.

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