Features | Partner Sites | Information | LinkXpress
Sign In
Schiller
Ampronix
GLOBETECH PUBLISHING

Chimney Graft Aortic Repair Provides Excellent Results

By HospiMedica International staff writers
Posted on 27 Feb 2013
A new study shows that chimney grafts during endovascular aneurysm repair (EVAR) offers first-rate long-term stent-graft patency and stable aneurysms.

Researchers at St. Franziskus Hospital (Münster, Germany), University Hospital Zürich (Switzerland), and other institutions conducted a study to examine radiological follow-up data of 124 high-risk patients with complex pararenal aortic pathologies treated with chimney and periscope grafts during EVAR between January 2008 and December 2011 in two European sites. In all, 50 patients were treated in one site, and 74 at the other; of these, 40 patients completed computed tomography (CT) angiography follow-up at 24 months postoperatively.

The results showed that the overall technical success was 100%, with no procedure-related mortality; three (2.4%) patients had a perioperative type Ia endoleak that persisted. A type II endoleak was detected in seven (5.6%) patients. During the 2-year follow-up, significant shrinkage or stable aneurysm diameter was seen in 36 (90%) of the cases. Overall, mean aneurysm sac shrinkage was 12% and 10% for the two centers, respectively. The causes for sac progression in four (10%) of the patients were a type Ia endoleak, 2 type II endoleaks, and endotension. The study was published in the February 2013 issue of the Journal of Endovascular Therapy.

“The use of chimney and/or periscope endografts for pararenal aortic pathologies achieves and maintains successful exclusion of the aneurysm in 90% of the cases at 24 months of radiological follow-up,” concluded lead author Konstantinos Donas, MD, PhD, of St. Franziskus Hospital, and colleagues. “In centers experienced with this approach, the chimney technique may represent a reliable therapeutic modality in selected patients.”

When important branch vessels are involved in the aneurysm, covering them can lead to serious problems with major organs, such as the kidneys and intestines. A treatment to address this problem involves placing a chimney graft—a covered stent—between the aortic endograft and the aortic wall. The chimney graft begins in the undiseased aorta and runs parallel to the aortic stent-graft, ending at the opening of a covered branch vessel, delivering blood to the vessel and the organ it supplies.

Related Links:
St. Franziskus Hospital
University Hospital Zürich


Bovie Medical
Centurion Service
MinXray

Channels

Critical Care

view channel
Image: The Trellis peripheral infusion system (Photo courtesy of Covidien).

Thrombolytic Drug Delivery Device Dissolves Blood Clots

A redesigned peripheral infusion system enables focused treatment of blood clots to avoid potential post-thrombotic syndrome (PTS). The updated Trellis peripheral infusion system is a pharmacomechanical... Read more

Women's Health

view channel
Image: A prototype contraceptive implant (Photo courtesy of MicroCHIPS).

Contraceptive Implant Hails New Era of Birth Control

A fingernail-sized implant holds enough 30-microgram daily doses of levonorgestrel to provide contraception for 16 years. Developed by MicroCHIPS (Lexington, MA, USA), a MIT (Cambridge, MA, USA) startup,... Read more

Health IT

view channel

Wikipedia Dominates Internet Drug Information

Wikipedia, along with Google and WebMD, is where more than half of all Americans turn to for health information on prescription drugs. Researchers at the Blackstone Group (London, United Kingdom), Harvard Medical School (Boston, MA, USA), and other institutions selected new drug-safety communications related to prescription... Read more

Business

view channel

Spectranetics Completes Acquisition of AngioScore

Spectranetics (Colorado Springs, CO, USA) has completed the acquisition of AngioScore (Fremont, CA, USA), a leading developer, manufacturer, and marketer of cardiovascular specialty balloons. The transaction, for USD 230 million in cash and contingent commercial and regulatory milestone payments, will combine differentiated,... Read more
 
Copyright © 2000-2014 Globetech Media. All rights reserved.