Navigation Links
Study Hints at Why Heart Disease Is More Deadly for Blacks
Date:6/28/2011

TUESDAY, June 28 (HealthDay News) -- A new study hints at one reason that black Americans are at a higher risk of death from heart disease than whites: Blacks appear to have higher levels of a certain type of plaque that builds up in arteries and is not detected in standard screening.

This so-called "non-calcified plaque" -- which consists of soft deposits that accumulate deep in the walls of arteries -- can rupture and send out blood clots that can lead to heart attacks.

The new study looks specifically at non-calcified plaque, not calcified plaque, which is commonly monitored in coronary screening tests. The study authors said ordinary calcium screening tests such as CT scans may not be as valid for blacks since they miss the non-calcified plaque.

"For a long time, physicians have searched for explanations as to why African Americans have higher rates of heart disease and higher cardiac death rates, but less coronary artery calcium than Caucasians," said study co-author Dr. U. Joseph Schoepf, professor of radiology and medicine and director of cardiovascular imaging at the Medical University of South Carolina in Charleston, in a news release. "We show that one possible explanation for the discrepancy may be found in the higher rate of less stable, non-calcified plaque in the heart vessels of African Americans."

Federal statistics show that blacks are more likely than whites to be diagnosed with heart disease and die of it.

In the study, researchers screened 301 patients for both kinds of plaque using two kinds of technology: CT and contrast-enhanced coronary CT angiography technology. (The latter allows monitoring of different kinds of plaques.) Half the patients were black and half were white, and a third were male. The average age was 55.

Researchers found that non-calcified plaque was much more common in black patients: 64 percent of them had it, compared to 41 percent of whites. Blacks also had more of the plaque in their arteries.

Whites, on the other hand, were more likely to have higher levels of calcified plaque than blacks (45 percent vs. 26 percent).

Dr. Keith Ferdinand, chief science officer of the Association of Black Cardiologists, said it's important to remember that CT angiography is not a perfect test, especially in patients with diabetes and obesity, which are common among blacks.

Ferdinand added that it's difficult to pinpoint the specific effect that race has upon health -- as this study attempts to do -- considering how many differences that may exist between different racial groups.

The study appears in the journal Radiology.

More information

The U.S. Office of Minority Health has more on heart disease in African-Americans.

-- Randy Dotinga

SOURCES: Keith Ferdinand, M.D., chief science officer, Association of Black Cardiologists, Atlanta; Radiological Society of North America, news release, June 28, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Despite Treatment, Employees with Depression Generate Higher Absentee Costs, According to Thomson Reuters Study
2. American Council on Exercise (ACE) Study Reveals Kettlebells Provide Powerful Workout in Short Amount of Time
3. TV drama can be more persuasive than news program, study finds
4. Study carried out into biological risks of eating reptiles
5. Neuroimaging study may pave way for effective Alzheimers treatments
6. Study finds racial gaps continue in heart disease awareness
7. Luth Researchs IndicatorEDG(TM) Study Finds Americans Hopes of Achieving Their Dreams Are Fading
8. First blinded study of venous insufficiency prevalence in MS shows promising results
9. Soothing infants with food focus of childhood obesity study
10. People with anxiety disorder less able to regulate response to negative emotions, study shows
11. American Heart Association Rapid Access Journal Report: Study Finds Racial Gaps Continue in Heart Disease Awareness, Low Knowledge of Heart Attack Warning Signs Among Women
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/28/2016)... ... ... After a year and a half of planning the Multiple Pathways of Recovery Conference ... of Recovery Conference was held May 2 -4, 2016 at the Mystic Marriott Hotel ... to explore the many pathways individuals use to get into and sustain their recovery. ...
(Date:5/27/2016)... ... ... W.S. Badger Co. Inc ., the maker of certified organic and ... of the best small businesses for new dads by Fatherly, the digital lifestyle guide ... progressive benefits to new parents on the organization’s 2016 Best Places to Work ...
(Date:5/27/2016)... ... May 27, 2016 , ... In ... the many who are unaware of the plight of aphasia. In collaboration with ... the “Stroke Awareness” campaign. , The link between stroke and aphasia is relatively ...
(Date:5/27/2016)... ... May 27, 2016 , ... With a team of ... food industries. Aside from its GMP accreditation, Validation Center is also a registered ... products, services and staff. , Validation Center is ISO17025 accredited and only offers ...
(Date:5/26/2016)... St. Louis, Missouri (PRWEB) , ... May 26, ... ... optimal cost, quality and clinical outcomes, hosted members and suppliers for its inaugural ... with a focus on their mission of elevating the operational health of America’s ...
Breaking Medicine News(10 mins):
(Date:5/27/2016)... , May 27, 2016 ... biopharma company focused on the highly lucrative global ... substantial pipeline of potential first-in-class or best-in-class tyrosine ... in development with strategic partners. HCM,s profitable Chinese ... domestic market. We expect progress of the mid-to-late-stage ...
(Date:5/26/2016)... , May 26, 2016 According to ... Waste Management Market - U.S. Industry Analysis, Size, Share, Growth, ... market in the U.S. was valued at US$ 5.89 Bn ... of 3.4% from 2015 to 2023 to reach US$ 7.99 ... of current and emerging needle free drug delivery devices and ...
(Date:5/26/2016)... May 26, 2016 Since its ... into an essential life science tool for conducting genetic ... BCC Research reveals in its new report that the ... phase, one powered by a range of new applications ...      (Logo: http://photos.prnewswire.com/prnh/20140723/694805 ) , ...
Breaking Medicine Technology: