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Comment & Response
November 12, 2014

Time Since Stroke and Risk of Adverse Outcomes After Surgery

Author Affiliations
  • 1Department of Neurology, University of North Carolina, Chapel Hill
JAMA. 2014;312(18):1930. doi:10.1001/jama.2014.13422

To the Editor Dr Jørgensen and colleagues1 reported an increased risk of recurrent stroke within 30 days after surgery in patients with previous stroke compared with those without previous stroke and that the risk was higher the closer to the incident stroke that the surgery was performed. However, this study cannot be interpreted as showing that the risks of surgery are greater if performed closer to the incident stroke because it lacks a crucial control group with recent stroke who did not undergo surgery.

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