Mesh plug may be effective in treating different types of aneurysms

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Mesh plugs may be effective in treating different types of aneurysms

A new study finds that a device called the Woven EndoBridge (WEB) is equally effective for both types of aneurysms. Image credit: Mitrey/Pixabay

A mesh plug typically used to treat one type of brain aneurysm is also effective in dealing with another type of aneurysm, a new study says.

Aneurysms are bulges in blood vessels that can lead to life-threatening ruptures. They usually occur where a blood vessel bifurcates into two branches (bifurcations), but they can also occur on one side of the vessel.

The study found that a device called the Woven EndoBridge (WEB) is equally effective for both types of aneurysms.

A common treatment is to place tiny platinum coils into the aneurysm, but that has limitations, the study’s authors said.

The report was published Tuesday in the journal Radiology.

“If the neck of the aneurysm is wide, the coil may fall into the vessel, leading to clot formation and incomplete occlusion of the aneurysm,” lead author Dr. Nimer Adeeb said in a journal news release.

“A lot of times, you end up with a stent in the vessel to keep the coils from falling out and to keep them compact in the aneurysm. This can have its own complications and require the use of blood thinners,” said Adeeb, who is with the Division of Neurosurgery and Interventional Neuroradiology at Louisiana State University in Shreveport.

The WEB device was developed to overcome these limitations. It is placed inside the aneurysm, causing a blood clot to form. This will close the aneurysm and reduce the risk of bleeding without the use of stents or blood thinners.

The FDA approved the WEB device for wide-necked intracranial bifurcation aneurysms, but some experts use it to treat aneurysms that occur on one side of the vessel.

In this study, Adeeb and his colleagues analyzed more than 10 years of data from 23 academic institutions in North America, South America, Australia and Europe.

The WEB device was used in 572 patients with bifurcation aneurysms and 111 patients with sidewall aneurysms. After accounting for patient differences, the researchers compared 91 pairs of bifurcation and sidewall aneurysms.

“We found no significant difference in the use of the WEB device in sidewall aneurysms compared to bifurcation aneurysms,” Adeeb said.” The results suggest that the WEB device is safe and effective for use in collateral wall aneurysms.”

Adeeb said he hopes the findings will spark a discussion about expanding the indications for use of the WEB device to include certain sidewall aneurysms.

About 6.5 million Americans have an unruptured brain aneurysm, according to the Brain Aneurysm Foundation.

The American Stroke Association has more information on cerebral aneurysms.

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