Hey Les, JustDave here. My left carotid is 50% blocked as of last ultrasound. Next is scheduled for this August to check the status. I see a vascular surgeon and he said surgery was in order if the artery is 75% blocked (memory serve.) Surgery, endarterectomy, is the gold standard for occluded carodids. Strage your doc told you that. Do you have other medical problems that would preclude you from the surgery?