Stroke risk increases after TBI

medical-operating-roomThe risk of ischemic stroke increased modestly but significantly following traumatic brain injury (TBI), according to a review of more than 400,000 cases.

TBI was associated with a 31% greater risk of stroke compared with trauma patients whose injuries did not affect the brain. A significantly increased risk persisted after adjustment for potentially confounding factors.

Although the absolute increase in risk was 0.2%, the higher prevalence of TBI in trauma patients translated into a bigger contribution to ischemic stroke than hypertension, the leading risk stroke risk factor, James F. Burke, MD, of the University of Michigan in Ann Arbor, and co-authors reported in the July 2 issue of Neurology.

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