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Evaluating a new way to open clogged arteries
Date:5/21/2013

CAMBRIDGE, MA -- Over the past few decades, scientists have developed many devices that can reopen clogged arteries, including angioplasty balloons and metallic stents. While generally effective, each of these treatments has drawbacks, including the risk of side effects.

A new study from MIT analyzes the potential usefulness of a new treatment that combines the benefits of angioplasty balloons and drug-releasing stents, but may pose fewer risks. With this new approach, a balloon is inflated in the artery for only a brief period, during which it releases a drug that prevents cells from accumulating and clogging the arteries over time.

While approved for limited use in Europe, these drug-coated balloons are still in development in the United States and have not received FDA approval. The MIT study, which models the behavior of the balloons, should help scientists optimize their performance and aid regulators in evaluating their effectiveness and safety.

"Until now, people who evaluate such technology could not distinguish hype from promise," says Elazer Edelman, the Thomas D. and Virginia W. Cabot Professor of Health Sciences and Technology and senior author of the paper describing the study, which appeared online recently in the journal Circulation.

Lead author of the paper is Vijaya Kolachalama, a former MIT postdoc who is now a principal member of the technical staff at the Charles Stark Draper Laboratory.

Evolution of technology

Until the late 1970s, the standard treatment for patients with blocked arteries near the heart was bypass surgery. Doctors then turned to the much less invasive process of reopening arteries with angioplasty balloons. Angioplasty quickly became the standard treatment for narrowed arteries, but it is not always a long-term solution because the arteries can eventually collapse again.

To prevent that, scientists developed stents metal, cage-like structures that
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Contact: Sarah McDonnell
s_mcd@mit.edu
617-253-8923
Massachusetts Institute of Technology
Source:Eurekalert

Page: 1 2 3

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