Featured Research

from universities, journals, and other organizations

University of Florida Surgeons Test Wire Stent-Graft To Repair Abdominal Aneurysms

Date:
September 25, 1997
Source:
University of Florida
Summary:
The new method could potentially lower the risk of death, eliminate the need for intensive care, shorten hospital stays and decrease health-care costs.

GAINESVILLE, Fla.---A 64-year-old Florida man is recovering afterUniversity of Florida surgeons and radiologists used a tiny metallic and fabric device to bolster the weakened wall of a major artery in his abdomen.

The man had been diagnosed with an aortic aneurysm, a balloon-like swelling of the aorta caused by the pressure of blood flowing through it. The aorta is the main vessel supplying blood to the lower body. Over time, an aneurysm can rupture and cause fatal blood loss.

During the experimental procedure, UF surgeons and radiologists inserted a small, flexible wire through a vessel in the man's leg, threading it toward the weak spot in the aorta, said Dr. James G. Caridi, an assistant professor of radiology at UF's College of Medicine. They then deployed the device, known as a stent-graft, through a small tube called a catheter. The heat-sensitive stent expands and attaches the fabric bypass graft to the artery by friction, sealing off the problem area while permitting normal blood flow to continue through the artery.

UF surgeons are studying whether they can safely and effectively repair abdominal aortic aneurysms through this minimally invasive approach withfewer complications than major surgery, which involves replacing the weakened section of the affected artery with an artificial bypass graft. The new method could potentially lower the risk of death, eliminate the need for intensive care, shorten hospital stays and decrease health-care costs.

"Surgery effectively repairs aneurysms without any question," said Dr. James M. Seeger, chief of vascular surgery at UF's College of Medicine. "The concern with the minimally invasive approach is how effective it will be in the long-term. No one knows the answer to that yet.

"The advantages of this new approach seem obvious," he added. "This can be done through a small incision in the groin and potentially the patient can go home in a couple days, having avoided the stress of majorsurgery, which can lead to heart attack, kidney failure or even death."

Up to 10 percent of patients experience significant complications after the standard surgery. Some are hospitalized for as much as 10 days and face up to a two-month recovery period afterward.

A subset of patients requiring aneurysm repair are at significantly increased risk because of associated heart, lung and kidney disease, or advanced age. Up to 10 percent of these patients may die from the surgery, and complications rates can be as high as 50 percent, Seeger said.

For the next five years, surgeons from UF and other universities nationwide will track 90 patients who undergo conventional surgery and235 who receive the stent-graft to repair aortic aneurysms. The study is sponsored by Meadox.

The risk of rupture increases with the aneurysm's size and with time. Virtually 100 percent of aneurysms greater than 7 cm to 8 cm in size rupture within five years. The death rate associated with aneurysm rupture is 80 to 90 percent. To qualify for the study, patients must have aortic aneurysms that are at least 4 cm in diameter.

"Abdominal aneurysms are a common problem and not an uncommon cause of death," said Seeger, who estimated 30 to 66 people per 1,000 will be diagnosed with an aneurysm. "Unfortunately, patients with aneurysms often have no symptoms and the aneurysms are found by accident.

"The risk of developing an aneurysm increases with age without any question; it's a disease of the elderly," he added. "That is one of the reasons to look for less invasive ways of treating aneurysms. Most people who have aneurysmal disease are elderly and have other medicalproblems that increase the risk of surgery."

Seeger and Caridi are working with UF College of Medicine colleaguesDr. Thomas S. Huber, assistant professor of surgery; Dr.Timothy C. Flynn, professor of surgery; and Dr. Dick Hawkins, professor of radiology.

-----------------------------------------

Recent UF Health Science Center news releases also are available on the UF Health Science Center Communications home page. Point your browser tohttp://www.vpha.health.ufl.edu/hscc/index.html

For the UF Health Science Center topic/expert list, point your browser tohttp://www.health.ufl.edu/hscc/experts.html


Story Source:

The above story is based on materials provided by University of Florida. Note: Materials may be edited for content and length.


Cite This Page:

University of Florida. "University of Florida Surgeons Test Wire Stent-Graft To Repair Abdominal Aneurysms." ScienceDaily. ScienceDaily, 25 September 1997. <www.sciencedaily.com/releases/1997/09/970925092915.htm>.
University of Florida. (1997, September 25). University of Florida Surgeons Test Wire Stent-Graft To Repair Abdominal Aneurysms. ScienceDaily. Retrieved September 1, 2014 from www.sciencedaily.com/releases/1997/09/970925092915.htm
University of Florida. "University of Florida Surgeons Test Wire Stent-Graft To Repair Abdominal Aneurysms." ScienceDaily. www.sciencedaily.com/releases/1997/09/970925092915.htm (accessed September 1, 2014).

Share This




More Health & Medicine News

Monday, September 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Get on Your Bike! London Cycling Popularity Soars Despite Danger

Get on Your Bike! London Cycling Popularity Soars Despite Danger

AFP (Sep. 1, 2014) Wedged between buses, lorries and cars, cycling in London isn't for the faint hearted. Nevertheless the number of people choosing to bike in the British capital has doubled over the past 15 years. Duration: 02:27 Video provided by AFP
Powered by NewsLook.com
We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Liberia Continues Fight Against Ebola

Liberia Continues Fight Against Ebola

AFP (Aug. 30, 2014) Authorities in Liberia try to stem the spread of the Ebola epidemic by raising awareness and setting up sanitation units for people to wash their hands. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

Reuters - US Online Video (Aug. 30, 2014) California lawmakers pass a bill requiring universities to adopt "affirmative consent" language in their definitions of consensual sex, part of a nationwide drive to curb sexual assault on campuses. Linda So reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins