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(Stroke. 2008;39:268.)
© 2008 American Heart Association, Inc.

Advances in Stroke 2007

Advances in Interventional Neuroradiology 2007

From the University Hospital (D.M.P.), London Health Sciences Centre, Departments of Diagnostic Radiology and Nuclear Medicine, and Clinical Neurological Sciences, University of Western Ontario, London, Ontario, Canada; Department of Neurosurgery (E.I.L., L.N.H.), Millard Fillmore Gates Hospital, Kaleida Health; Departments of Neurosurgery and Radiology and Toshiba Stroke Research Center, School of Medicine and Biomedical Sciences, University at Buffalo, State University New York, Buffalo, New York, USA.

Correspondence to David M. Pelz, MD, FRCPC, Neuroradiology Section, University Hospital, London Health Sciences Centre, 339 Windermere Rd, London, Ontario, Canada, N6A 5A5. E-mail pelz@uwo.ca, or cathy.carlisle@lhsc.on.ca

Key Words: interventional neuroradiology • advances

An extract of the first 250 words of the full text is provided, because this article has no abstract.

The year 2007 brought further understanding of the risk for subgroups of patients undergoing carotid artery stenting (CAS). For symptomatic patients, both increasing age and treatment within 2 weeks of neurological symptoms were associated with increased risk of perioperative stroke or death.¹ Unfavorable anatomic factors for CAS among octogenarians included aortic arch elongation, calcification, great vessel origin stenosis, tortuosity, and severity of lesion stenosis,² and the combined perioperative stroke/ myocardial infarction/death rate was 10.8% for this group.² Diabetic patients 75 years undergoing CAS have 4.3x greater risk for any stroke/death and 12.0x greater risk for major stroke/death, whereas diabetics <75 years have no increased risk.³ Increasing age was also associated with higher rates of in-hospital stroke or death.⁴ There was no significant difference in periprocedural complications after CAS for patients with previous ipsilateral carotid endarterectomy (CEA).⁵

In an attempt to aid decision-making for surgical versus endovascular treatment of carotid artery disease, a single community-based hospital reviewed its contemporary experience with CEAs in 1900 patients.⁶ High-surgical-risk patients comprised 54% of the total. The perioperative stroke/death rate for this cohort was 1.6% compared with 1.3% for all patients. The 30-day stroke/myocardial infarction/death rate was 3.4%. Severe coronary artery disease and previous ipsilateral CEA were associated with increased risk for complications.⁶

A prospective randomized trial of CAS versus CEA for symptomatic patients reported that despite increased diffusion-weighted imaging lesions on brain MRI after CAS, similar numbers of patients in each treatment group experienced cognitive changes.⁷ A study evaluating brain MRI before . . . [Full Text of this Article]

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