Non-invasive procedures to screen patients with asymptomatic carotid ar tery bruits for angiography and surgery are now available. The use of Oculople tysmography (OPG) and Phonoangiography (PA) in 1120 arteries in 560 patients is reviewed; 101 patients (18%) had positive findings. Eighty five of these patients were available for 5 year follow up. None of these patients had surgery or other treatment. In this group there were 27 (32%) major cerebro vascular accidents (CVA) and 22 deaths. In this group of patients, screening and further work up and surgery where indicated in advised.
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