Go to the top

Chicago Neurosurgeon Performs Revolutionary Treatment for Complex Brain Aneurysms

Posted on June 16, 2011

 Demetrius Lopes, MD, endovascular-trained neurosurgeon at Rush University Medical Center in Chicago is performing a new and effective treatment to reduce the risk in patients suffering from complex brain aneurysms. The recently FDA-approved technology called the Pipeline Embolization Device (PED) gives Dr. Lopes the ability to treat some of the most complex and dangerous brain aneurysms using a minimally invasive, endovascular, technique.  The treatment is focused on reconstructing or remodeling a weakened blood vessel wall.  By mechanically reinforcing the section of the blood vessel harboring the aneurysm, the risk of rupture is significantly reduced.  To review animated video of the Pipeline Embolization Device, click here.

The types of complex brain aneurysms suited for treatment with the Pipeline Device include large or giant aneurysms, as well as those with a wide-neck.  Even though the risk of rupture is significant, patients previously presenting with these types of brain aneurysms had to elect open brain surgery or go without treatment.  Using the PED, Dr. Lopes can now offer these patients long-term outcomes and low complication rates.  As Dr. Lopes was part of the research team which evaluated the Pipeline Device for FDA-approval, he has one of the largest USA experiences.

Dr. Lopes and the endovascular team at Rush University Medical Center are the only specialists in Illinois and one of seven teams in the US. with the ability to offer treatment with PED.    Dr. Lopes and his team at Rush were invited to be part of this elite group because of their progressive, multidisciplinary team approach and significant clinical experience.  The endovascular team at Rush treats more than 100 patients with

Aneurysm remodeling devices allow Dr. Lopes to redirect the blood flow through the parent vessel.

aneurysms each year, more than any other Chicago-based institution.

It is estimated that one in 50 Americans have a brain aneurysm, an abnormal ballooning of a portion of an artery in the brain due to a weakened blood vessel wall.  Treatment for aneurysms can be tricky, especially when they are large or giant, wide-necked aneurysms, said Dr. Lopes, who is an assistant professor of neurological surgery at Rush University.  Large aneurysms, which are more than 10 mm in diameter and giant aneurysms, which are more than 25 mm in diameter are especially problematic.  If left untreated, they can result in compression of the brain and surrounding structures, bleed and cause ischemic strokes. 

 The PED is a new class of embolization device designed to divert blood flow away from the aneurysm.  Dr. Lopes guides the device through a catheter placed in the femoral artery in the leg up into the brain.  Once Dr. Lopes deploys the device across the neck of an aneurysm, the PED essentially rebuilds the diseased brain artery by rerouting blood flow away from the aneurysm and along the course of the normal, reconstructed blood vessel. 

If you have questions regarding the Pipeline Device or would like to request an appointment with Dr. Lopes, please email him at info@chicagostrokemd.com or call 312 942-6644.