Hello and thank you for your question! I understand your concern about surgery; seems that surgery is an important option (and generally is performed without frequent complications; I would say it is a routine intervention: you don t have to worry so much about that; of course another option is treatment with stent implantation; but you would need after that treatment with double anti-thrombotic therapy (aspirin plus clopidogrel) for a long time; the third option is to avoid the above two interventions and to be limited with the double anti-thrombotic therapy, but the incidence for developing stroke is high. I recommend you amongst the three options mentioned above surgery as a more safe and steady intervention; is is not needed to insert foreign accessories in your body (stents) and more safe than the conservative option. Hope to have been helpful to you! Greetings from Dr. Iliri