Features | Partner Sites | Information | LinkXpress
Sign In
Ampronix
Shuenn Bao Shing Corporation
Schiller

Fenestrated Endovascular Graft Repairs Aortic Aneurysms

By HospiMedica International staff writers
Posted on 04 Mar 2013
Image: The Zenith Fenestrated AAA Endovascular Graft (Photo courtesy of Cook Medical).
Image: The Zenith Fenestrated AAA Endovascular Graft (Photo courtesy of Cook Medical).
A customized endovascular stent graft can replace open invasive surgery in patients who have an abdominal aortic aneurysm (AAA) that involve the aorta and the iliac arteries.

The Zenith Fenestrated AAA Endovascular Graft is used to repair AAAs or aneurysms that involve both the abdominal aorta and the iliac arteries. The new graft is similar to the traditional endovascular graft, made of a polyester fabric encased by a stainless steel scaffold. However, it is different from the off-the-shelf graft because of two fenestrations fabricated in the graft to accommodate the renal arteries, which help to keep the graft in place, as well as a scallop-shaped cut to supply blood to the superior mesenteric artery, which carries blood to the intestines.

The graft has three parts - an upper main body, a lower main body, and one leg. An adjunctive alignment stent made of stainless steel is used to help keep the holes in the graft lined up with the arteries that supply the organs. Patients eligible for the new customized graft repair include those whose aneurysms approach within 5 millimeters of the renal arteries, and have large enough vessels to deliver the stent-graft to the appropriate location. The planning process itself includes modeling the patient's aorta using computed tomography (CT), with fabrication of each graft taking about five weeks. The Zenith Fenestrated AAA Endovascular Graft is a product of Cook Medical (Bloomington, IN, USA).

“We do a substantial amount of planning before the endovascular operation to ensure that the graft will be engineered correctly to match the patient's individual anatomy,” said vascular surgeon James Black, MD, of Johns Hopkins Hospital (Baltimore, MD, USA). “At Hopkins, we perform close to 100 open abdominal aortic aneurysm repairs each year for patients who are not eligible for the minimally invasive option. With the new fenestrated stent-graft, we will be able to spare many of those patients a big operation and a long recovery.”

An AAA is a localized dilatation (ballooning) of the abdominal aorta exceeding the normal diameter by more than 50%, and is the most common form of aortic aneurysm. Approximately 90% of AAAs occur infrarenally, but they can also occur pararenally (at the level of the kidneys) or suprarenally. Such aneurysms can extend to include one or both of the iliac arteries in the pelvis. The major complication of AAAs is rupture, which is life-threatening, as large amounts of blood spill into the abdominal cavity, and can lead to death within minutes.]Mortality of rupture repair in the hospital is 60%–90%.

Related Links:
Cook Medical
Johns Hopkins Hospital


Anetic Aid
Dunlee
CardioComm Solutions

Channels

Critical Care

view channel

Vitamin B Effects on Cognitive Performance Uncertain

A new study suggests that vitamin B12 and folate supplements may not actually reduce the risk of memory and thinking problems. Researchers at Wageningen University (The Netherlands) conducted a double-blind, randomized, placebo-controlled trial to investigate the effects of two-year folic acid and vitamin B12 supplementation... Read more

Women's Health

view channel

Women with PTSD Face Higher Pregnancy Risk

Suffering from post-traumatic stress disorder (PTSD) significantly increases a pregnant woman's risk of premature birth, according to a new study. Researchers at Stanford University (CA, USA) conducted a study to identify antenatal PTSD status and spontaneous preterm delivery in a retrospective cohort (2000-2012).... Read more

Health IT

view channel

Wikipedia Page Views Could Predict Disease Outbreaks

A new study suggests that Wikipedia access data could be an effective tool for forecasting disease outbreaks up to a month in advance. Researchers at the Los Alamos National Laboratory (NM, USA) reviewed access logs to disease-related Wikipedia pages between 2010 and 2013. They mapped the languages the information was... Read more

Hospital News

view channel

Unused US Medical Supplies Could Support Hospitals Abroad

Major hospitals across the United States collectively throw away at least USD 15 million a year in unused operating room (OR) surgical supplies that could be salvaged and used to ease critical shortages, improve surgical care, and boost public health in developing countries. Researchers at Johns Hopkins Hospital (JHH;... Read more

Business

view channel

Global Wound Care Market Rife With Opportunity

Strong relationships with end users and an effective post sales service strategy must be a priority for wound care companies. These are the latest findings of Frost & Sullivan (Frost; London, United Kingdom), an international market research firm. The global wound care market is at a growth stage, driven by the increasingly... Read more
 
Copyright © 2000-2014 Globetech Media. All rights reserved.