forty-five patients with symptomatic ( 20 with transient ischemic attack , 25 with minor stroke ) greater than or equal to 75 % stenosis of the cervical internal carotid artery had no endarterectomy and received only medical therapy because the surgical risks ( severe cardiac disease , chronic obstructive pulmonary disease , hypertension or diabetes with systemic complications , aortic aneurysm ) were believed to be unacceptable .
C0007787
transient ischemic attack
C0038454
stroke