Featured Research

from universities, journals, and other organizations

Severe asymptomatic heart disease may accompany narrowing in leg arteries

Date:
January 4, 2010
Source:
Radiological Society of North America
Summary:
Results of a randomized, controlled clinical trial reveal that one in five patients with narrowing or blockage in arteries that supply blood to the legs and other parts of the body also have significant but silent coronary artery disease.

Results of a randomized, controlled clinical trial presented at the annual meeting of the Radiological Society of North America (RSNA) reveal that one in five patients with narrowing or blockage in arteries that supply blood to the legs and other parts of the body also have significant but silent coronary artery disease.

Peripheral arterial disease (PAD) occurs when plaque, a combination of fat, cholesterol and other substances, builds up in the arteries, limiting the flow of oxygen-rich blood throughout the body. PAD usually affects arteries that carry blood to the legs, causing poor circulation, discomfort and pain. More than eight million Americans have PAD, according to the American Heart Association.

According to the National Heart, Lung and Blood Institute, coronary artery disease is the most common type of heart disease and the leading cause of death in the U.S.

"PAD patients, including those experiencing no symptoms of heart disease, are known to be at high risk for cardiovascular events such as a heart attack or stroke," said Rozemarijn Vliegenthart Proenca, M.D., Ph.D., radiology resident at the University Medical Center Groningen in the Netherlands. "The purpose of our clinical trial was to investigate whether noninvasive imaging of the heart and subsequent treatment of PAD patients result in a decrease in cardiac events compared to standard care."

In the clinical trial, a total of 231 PAD patients from four participating hospitals in the Netherlands were divided into one of two groups: one in which 108 patients received standard care -- consisting of lifestyle changes and medication -- for their condition, and a second group in which 115 patients underwent cardiac imaging of the heart in addition to standard care.

"With new, noninvasive cardiac imaging techniques, asymptomatic coronary atherosclerosis can be readily detected and treated," Dr. Vliegenthart Proenca said.

Among the 115 patients who received cardiac imaging, computed tomography (CT) revealed that 53, or 46 percent, had at least one significant narrowing of a coronary artery. Of those 53 patients, 22 had significant narrowing in the left main coronary artery or its equivalent, and were referred for treatment. Eight of those patients subsequently had bypass surgery, and three underwent coronary angiography with stent placement. The remaining patients were treated with medication.

Cardiac stress MRI was then performed on 76 patients. Cardiac stress MRI, in which a drug is infused into the patient's bloodstream to make the heart work harder, helps determine if the heart muscle is receiving adequate blood flow. Results of the cardiac stress MRI exams identified two additional patients with signs of coronary artery disease, one of whom underwent angiography and stent placement.

In total, 24 (21 percent) of the 115 patients who underwent imaging had evidence of asymptomatic but severe coronary artery disease that required additional treatment.

"In PAD patients experiencing no cardiac symptoms, we found a strikingly high rate of severe coronary artery disease," Dr. Vliegenthart Proenca said. "The results of our trial stress that PAD patients without a history of cardiac symptoms should undergo extensive cardiovascular risk factor management."

Coauthors are Alexander de Vos, M.D., Ph.D., Matthijs Oudkerk, M.D., Ph.D., Mathias Prokop, M.D., Ph.D., Michiel Bots, M.D., Ph.D., Willem Mali, M.D., Ph.D., Annemarieke Rutten, M.D., Ph.D., Gonda de Jonge, M.D., Daniel Lubbers, M.D., Jan van den Dungen, M.D., Ph.D., Maarten Cramer, M.D., Ph.D., Pieter Doevendans, M.D., Ph.D., Benno Rensing, M.D., Ph.D., Hester van der Zaag-Loonen, M.D., Ph.D., and Felix Zijlstra, M.D., Ph.D.


Story Source:

The above story is based on materials provided by Radiological Society of North America. Note: Materials may be edited for content and length.


Cite This Page:

Radiological Society of North America. "Severe asymptomatic heart disease may accompany narrowing in leg arteries." ScienceDaily. ScienceDaily, 4 January 2010. <www.sciencedaily.com/releases/2009/12/091201084154.htm>.
Radiological Society of North America. (2010, January 4). Severe asymptomatic heart disease may accompany narrowing in leg arteries. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2009/12/091201084154.htm
Radiological Society of North America. "Severe asymptomatic heart disease may accompany narrowing in leg arteries." ScienceDaily. www.sciencedaily.com/releases/2009/12/091201084154.htm (accessed July 25, 2014).

Share This




More Health & Medicine News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. Video provided by Newsy
Powered by NewsLook.com
Condemned Man's US Execution Takes Nearly Two Hours

Condemned Man's US Execution Takes Nearly Two Hours

AFP (July 24, 2014) America's death penalty debate raged Thursday after it took nearly two hours for Arizona to execute a prisoner who lost a Supreme Court battle challenging the experimental lethal drug cocktail. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
Can Watching TV Make You Feel Like A Failure?

Can Watching TV Make You Feel Like A Failure?

Newsy (July 24, 2014) A study by German researchers claims watching TV while you're stressed out can make you feel guilty and like a failure. Video provided by Newsy
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