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Northwestern study compares endovascular brain aneurysm repair devices
Date:4/3/2012

Approximately 6 million Americans have brain aneurysms, a condition that occurs when a weak or thin spot develops on a blood vessel in the brain causing it to balloon. Often, these do not cause symptoms and go undetected, but every year an estimated 30,000 Americans experience a ruptured aneurysm that bleeds into the brain causing a life threatening injury. Immediate medical treatment is necessary to prevent stroke, nerve damage or death, and includes surgery or coiling. Coiling is an approach that blocks blood flow to the aneurysm by filling it with platinum coils. While less invasive than surgery, the likelihood of future aneurysm recurrence and subsequent treatment is higher with coiling. In an effort to lower the risk for repeat aneurysm treatment after coiling, Northwestern Medicine researchers are examining a new type of gel-coated coil to determine if it is more effective than the standard bare coils in preventing aneurysm recurrence.

Aneurysms can be a very serious health threat, according to Bernard R. Bendok, MD, a neurosurgeon at Northwestern Memorial Hospital, who is the principal investigator for the new generation Hydrogel Endovascular Aneurysm Treatment Trial (HEAT). "When an aneurysm needs treatment, it is important to perform the safest, most effective and most durable treatment. This clinical research trial, called HEAT, will help us determine whether bare platinum coils, which have been used for years, or the newer gel-coated coils are more effective long-term," said Bendok, who is also an associate professor of neurological surgery and radiology at Northwestern University Feinberg School of Medicine.

Coiling involves inserting a catheter into an artery and threading it through the body using live x-rays as a guide to the site of the aneurysm. Coils are passed through the catheter and released into the aneurysm filling it to block blood from entering. Blood clots then form around the coil preventing the vessels from rupturin
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Contact: Megan McCann
memccann@nmh.org
312-926-5900
Northwestern Memorial Hospital
Source:Eurekalert

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