Magazine article Clinical Psychiatry News

Cognition Improves after Carotid Stenting

Magazine article Clinical Psychiatry News

Cognition Improves after Carotid Stenting

Article excerpt

CHICAGO -- Carotid artery stenting appeared to improve cognitive function based on the results of what investigators said is the first study to look at perfusion and diffusion-weighted imaging before and after stenting.

"We found that stenting of the carotid artery significantly increased cognitive speed," Dr. Iris Grunwald said at the Radiological Society of North America annual meeting. Studies of brain function following carotid endarterectomy have produced mixed results, and there is no consensus in the literature as to whether carotid intervention improves cognition.

Dr. Grunwald and her colleagues at the Saarland University Clinic in Homburg, performed carotid artery stenting on 29 patients. Mean age was 68 years and mean degree of stenosis was 90%. People were excluded from the study if they had paresis in the upper extremity, impairment in eyesight, and/or hemianopsia. Those with psychiatric disease or insufficient command of language also were excluded.

Stents were implanted in the left carotid artery in 18 patients. All the patients were asymptomatic and right handed. Thus speech-related functions were primarily left-brain functions in these patients, Dr. Grunwald explained.

Perfusion and diffusion-weighted magnetic resonance imaging (MRI) was performed 24 hours before and 48 hours after intervention (see images). …

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