Oculoplethysmography. Evaluation of patients with transient ischemic attacks from internal carotid artery disease.
Oculoplethysmography was used to evaluate 66 patients with transient ischemic attacks prior to cerebral angiography. Fifty-eight (87.9%) symptomatic internal carotid arteries had anatomically significant stenosis. Only 69 per cent of these 58 arteries had positive OPG test. Thirty-one per cent of the arteries were well compensated hemodynamically with collaterals and had a false negative test. A negative OPG test does not rule out an anatomically significant internal carotid artery stenosis.
D001157:Arterial Occlusive Diseases / Q000150:complications / Q000175:diagnosis*; D001794:Blood Pressure; D002340:Carotid Artery Diseases / Q000150:complications / Q000175:diagnosis*; D002343:Carotid Artery, Internal / Q000503:physiopathology; D006801:Humans; D002546:Ischemic Attack, Transient / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D008297:Male; D009880:Ophthalmic Artery / Q000503:physiopathology; D010991:Plethysmography / Q000379:methods*