Advanced age and race are among the factors that can affect whether a patient dies or suffers a stroke after carotid-artery surgery, a UT Southwestern physician involved in a multicenter study has found. "This study identified 11 readily available, clinical risk factors that can help referring physicians, neurologists, surgeons and anesthesiologists better weigh the risks and benefits of carotid surgery for an individual patient," said Dr. Ethan Halm, new chief of the William T.

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