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.