A study looking at over 47,000 patients with carotid artery disease in New York and California found that stenting is equivalent to open surgery in asymptomatic patients but yields higher rates of in-hospital mortality in symptomatic patients. The findings were published online July 12, 2010, ahead of print in the Journal of Vascular Surgery.

An outside researcher, though, challenged the study results by claiming that they are subject to substantial bias.

Researchers led by K. Craig Kent, MD, of the University of Wisconsin School of Medicine and Public Health (Madison, WI), analyzed 47,752 patients treated with carotid artery stenting (CAS) and carotid ....

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