Featured Research

from universities, journals, and other organizations

Asymptomatic Carotid Plaque Healing Mechanisms Observed

Date:
September 5, 2008
Source:
Boston University
Summary:
Researchers have observed a noninvasive MR imaging a healing mechanism for plaque rupture, a potentially life-threatening event in the cardiovascular system that can result in a fatal heart attack or debilitating stroke. The untimely death of well-known television journalist Tim Russert, was due to the sudden rupture of a vulnerable plaque in a critical location in a coronary artery.

Researchers at Boston University School of Medicine (BUSM) have observed a non-invasive MR imaging (MRI) a healing mechanism for plaque rupture, a potentially life-threatening event in the cardiovascular system that can result in a fatal heart attack or debilitating stroke.

The untimely death of well-known television journalist Tim Russert, was due to the sudden rupture of a vulnerable plaque in a critical location in a coronary artery. This study, which was published in the September 2 issue of Circulation, shows that not all plaque ruptures are symptomatic.

Atherosclerotic plaque often develops at branch points or curving portions along extracranial and intracranial arteries where blood flow is slowed and more turbulent. This is common in carotid arteries, arteries that supply the head and neck with oxygenated blood.

Researchers at BUSM report that a patient with severe blockages in both the left and right carotid arteries was examined prior to operations to remove the plaque. Two months after removal of the left carotid plaque, the patient experienced plaque rupture in the right carotid artery without showing any symptoms. A potentially fatal stroke did not occur because the blood clot did not grow enough to block the flow of blood to the brain.

"This illustrates the healing of silent atherosclerotic ulceration, which is a specific type of rupture detected by MRIs over a period of two months," explains project leader, James Hamilton, PhD, professor of biophysics and physiology at BUSM. "This has not been reported previously. In the past there had been evidence of plaques removed from the carotid and human coronary artery through postmortem specimens that small plaque ruptures may occur without notice."

Hamilton and his collaborator Alik Farber, MD, an associate professor of surgery at BUSM and chief of vascular and endovascular surgery at Boston Medical Center, pointed out that these hemorrhages 'disappear' into the plaques but make the plaque more vulnerable to future rupture.


Story Source:

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


Cite This Page:

Boston University. "Asymptomatic Carotid Plaque Healing Mechanisms Observed." ScienceDaily. ScienceDaily, 5 September 2008. <www.sciencedaily.com/releases/2008/09/080902095120.htm>.
Boston University. (2008, September 5). Asymptomatic Carotid Plaque Healing Mechanisms Observed. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2008/09/080902095120.htm
Boston University. "Asymptomatic Carotid Plaque Healing Mechanisms Observed." ScienceDaily. www.sciencedaily.com/releases/2008/09/080902095120.htm (accessed July 24, 2014).

Share This




More Health & Medicine News

Thursday, July 24, 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
China's Ageing Millions Look Forward to Bleak Future

China's Ageing Millions Look Forward to Bleak Future

AFP (July 24, 2014) China's elderly population is expanding so quickly that children struggle to look after them, pushing them to do something unexpected in Chinese society- move their parents into a nursing home. Duration: 02:07 Video provided by AFP
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