As other contributors have mentioned, after carotid artery endarterectomy (which I assume is what you mean), there are no specific limitations. It s important to emphasize, though, that disease in one artery is a marker for disease in multiple other arteries, including the intracranial arteries (risk for stroke), coronary arteries (risk for heart attack), aorta, renal arteries, and peripheral arteries. Most patients who have had this procedure should, for the rest of their life, be on at least one antiplatelet agent (aspirin and/or clopidogrel) and one of the statins (cholesterol medicines - even if your cholesterol is normal ) as well as aggressive control of high blood pressure (to less than 135/85) and diabetes (with a hemoglobin A1c of preferably less than 7), along with smoking cessation and a healthy diet. The surgery treats one area of blockage; it does nothing for the ongoing disease in every artery in the body.