Intraoperativeblood transfusion of one or two units of packed red blood cells isassociated with a fivefold risk of stroke in patients undergoingelective carotid endarterectomy. … [Read more...] about Intraoperativeblood transfusion of one or two units of packed red blood cells isassociated with a fivefold risk of stroke in patients undergoingelective carotid endarterectomy.