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The risk of perioperative stroke is increased in patients with a prior ischemic stroke, though optimal timing of surgery after stroke is unclear. In a database study including nearly 6 million patients, the risk of postoperative ischemic stroke was increased eightfold in patients who had a stroke within 30 days before surgery, compared with those who never had a stroke.1 The risk of recurrent stroke decreased and leveled off for surgery between 60 and 90 days after stroke, but remained elevated. The timing of surgery in patients with prior ischemic stroke should consider the risk of recurrent stroke and the risk of delaying surgery. We suggest delaying elective surgery for at least three months, and if possible up to nine months, after a stroke to reduce the risk of recurrence.

, et al
Association of Time Elapsed Since Ischemic Stroke With Risk of Recurrent Stroke in Older Patients Undergoing Elective Nonneurologic, Noncardiac Surgery

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