In-Stent Stenosis of Stent-Assisted Coil Embolization of the Supraclinoid Internal Carotid Artery Aneurysm

tory was refer to our clinic for management of an incidental left posterior communicating artery (PCOM) aneurysm that was initially diagnosed on the basis of magnetic resonance imaging findings. Digital subtraction angiography (DSA), performed under local anesthesia, confirmed a 4.3 mm sized aneurysm of the left PCOM with 3.8 mm neck (Fig. After a discussion about management options-serial image follow-up, surgical clipping, or endovascular coil embolization-and associated risks, the patient elected to proceed with coil embolization. Because of unfavorable dome to neck ratio, a stent-assisted coil embolization was planned to cover the aneurysm neck and preserve the parent artery. The patient was pretreated for 5 days with 75 mg of clopidogrel daily and 100 mg of acetylsalicylic acid daily.