AKT-5366

AKT-5366

A 70-year-old woman presents with two episodes of right-sided, painless, transient monocular visual loss lasting up to a minute. Each episode was like a curtain descending from the upper visual field to affect the whole vision of her right eye. Neurological examination is normal. Her blood pressure is 120/80 mmHg. Erythrocyte sedimentation rate, glucose and lipids are all within the normal range. An electrocardiogram (ECG) shows sinus rhythm. Computed tomography brain is normal. Doppler of the carotid arteries shows 40% stenosis of the right internal carotid artery.
What is the most appropriate treatment for this patient?