Recurrent Vasospasm of Internal Carotid Artery Causing Recurrent Ischemic Stroke

The etiology of ischemic stroke in young adults often remains unclear. Extracranial internal carotid artery (ICA) vasospasm is uncommon and has been reported in only a few cases. We present a case of migrainous headache and recurrent ischemic stroke due to recurrent extracranial ICA vasospasm without evidence of carotid artery dissection or fibromuscular dysplasia.

Relationship between velocity of middle cerebral artery,severity of disease and watershed infarction in patients with extracranial internal carotid artery stenosis or occlusion / 临床神经病学杂志

Objective To study the relationship between velocity of middle cerebral artery(MCA),severity of disease and watershed infarction(WSI) in patients with extracranial internal carotid artery(EICA) stenosis or occlusion.Methods Transcranial Doppler(TCD) was used to detect the mean velocity(MV) of MCA in 120 patients with EICA stenosis or occlusion.The National Institutes of Health Stroke Scale(NIHSS) was used to evaluated the patients′ condition.And CT or MRI was used to diagnosised the WSI.Results MV of MCA was severe reduced in 10 cases,middle reduced in 38 cases,and mild reduced in 42 cases,while there were 30 cases with normal MV.The scores of NIHSS in the four groups(12.5?4.7,3.9?4.8,3.2?4.7,2.4?4.9 respectively) had significant different(P