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A mortality rate of 32% at 2 years after carotid artery stenting (CAS) in a new study has raised concerns about the risk-benefit of this procedure, especially in older patients.

The researchers, led by Jessica J. Jalbert, PhD, Harvard Medical School, Boston, Massachusetts, say their findings "raise questions about whether carotid stenting is justified if periprocedural risks are too high or if patients do not live long enough to benefit from the main advantage of CAS, which is stroke prevention."

JAMA Neurol. Published online January 12, 2015. doi:10.1001/jamaneurol.2014.3638