Author Interviews, Radiology, Stroke / 17.09.2014
Carotid Stenosis: Using Cerebrovascular Reserve To Assess Stroke Risk
MedicalResearch.com Interview with:
Ankur Pandya, PhD
Assistant Professor of Healthcare Policy and Research
Departments of Healthcare Policy and Research
Weill Cornell Medical College
New York, NY 10065.
Medical Research: What are the main findings of the study?
Dr. Pandya: Asymptomatic carotid stenosis is a highly prevalent condition that can lead to ischemic stroke, which is a leading cause of death and healthcare costs in the U.S. Revascularization procedures are often performed on asymptomatic carotid stenosis patients, but experts have questioned whether the stroke prevention benefits outweigh the risks and costs of revascularization in these patients. Imaging-based stroke risk assessment has traditionally focused on the degree of artery narrowing, but there has been growing interest in using cerebrovascular reserve (CVR) assessment to stratify these patients into those that are more likely to have a stroke, and thus better candidates for revascularization, and those that would be better off with less invasive management strategies (such as medical therapy). We therefore developed a simulation model to evaluate whether the CVR-based decision rule could be used efficiently select the right patients for revascularization. We found that the CVR-based strategy represented the best value for money compared to immediate revascularizations or medical therapy-based treatment for all patients.
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