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There were a total of 10 neurologic complications within 24 hours of angiography,5 of which were persistent.Onset of 5 of the deficits occurred during angiography,the other 3(3 persistent)were delayed.All complications occurred in patients being evaluated for stroke/transient ischemic attack or(in one case)asymptomatic bruit.A higher average age,longer average procedure time,and greater volume of radiographic contrast was noted in these patients than in the study population.Cerebral angiography was associated with a 1%overall incidence of neurologic deficit and a 0.5% incidence of persistent deficit.All complications occurred in patients presenting with a history of stroke/transient ischemic accident or carotid bruit,which may reflect the difficulty of performing angiography in this population at risk for atherosclerotic changes. |
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