Long term prognosis of asymptomatic carotid artery occlusion.
Twenty six asymptomatic patients with internal carotid artery occlusion had ultrasound follow-up for a mean period of 34.3 months. During follow-up 3 patients (11.5%) reported transitory ischemic attacks (TIAs), one of these (3.8%) occurred in the vascular territory ipsilateral to the occlusion. There were not strokes. Annual TIA rate was 4% for all vascular territories, and 1.3% for the territory ipsilateral to the occlusion. Annual mortality was 9.4%. Our data on stroke risk in patients with asymptomatic carotid artery occlusion show a good prognosis in the long-term.
Nonino
F
F
Neurology Unit, Malpighi Hospital, Bologna, Italy.
D'Alessandro
R
R
Pazzaglia
P
P
Conti
E
E
Amato
A
A
Borgatti
E
E
D000328:Adult; D000368:Aged; D001157:Arterial Occlusive Diseases / Q000175:diagnosis / Q000503:physiopathology*; D001921:Brain / Q000098:blood supply / Q000503:physiopathology; D002339:Carotid Arteries / Q000000981:diagnostic imaging / Q000503:physiopathology*; D002560:Cerebrovascular Circulation; D006801:Humans; D002546:Ischemic Attack, Transient / Q000209:etiology / Q000503:physiopathology*; D008297:Male; D011379:Prognosis; D012189:Retrospective Studies; D012307:Risk Factors; D014463:Ultrasonography