Navigation Links
Calcium in Arterial Plaque is a Good Indicator for Risk of Stroke

A new study by researchers at the University of Virginia Health System suggests that composition of plaque deposits in the carotid arteries indicate// a patient’s risk of having a stroke.

Published in the March edition of Stroke, the study looked retrospectively at the composition of plaque deposits in the carotid arteries of 102 patients treated at UVa. Its findings suggest that, in determining who is most likely to have a stroke, physicians may want to take a closer look at the type of plaque building up in their patients’ arteries.

According to Dr. Christopher Kramer, a professor of Radiology and Medicine at UVa and study team member, risk assessments for stroke have traditionally focused on the degree to which arterial plaque has constricted blood flow. “You might say, we’ve been worried about the size of the river channel,” he explains. “This study and others like it indicate we also need to pay attention to the river bank and to the kind of silt that’s accumulating there.”

Using computed tomography (CT) angiogram images from UVa’s patient database, the researchers measured calcified and noncalcified plaque in carotid arteries as well as total plaque volume. “There’s a lot of controversy about whether calcium in plaque is a marker of stability or instability,” Dr. Kramer explains. “When plaque in the coronary and carotid arteries is unstable, it is thought to lead to heart attack and stroke, respectively.”

Study findings show that patients with plaque that is more than 45 percent calcified had a low risk of having preceding symptoms of stroke or aborted stroke known as a transient ischemic attack (TIA). “We found that it’s the proportion, rather than the percent blockage, of calcified plaque that is associated with stability in patients with narrowed arteries,” Dr. Kramer notes.

In current clinical practice, physicians look at the percent blockage in the carotid artery to identify candidates for plaqu e clearing surgery to prevent stroke. The new findings suggest that calcification percentages should also be considered. According to Dr. Kramer, prospective studies of patients who have not yet developed symptoms are needed to confirm the diagnostic value of calcified plaque measurements.

The UVa researchers believe that improved risk assessments for stroke will lead to better decisions about when to intervene surgically. Even though plaque-removal procedures save many lives each year, they can cause complications and in some cases result in stroke or death.

The study included images taken with multidetector computed tomography (MDCT) from January 2004 to May 2006. MDCT is considered a promising method for evaluating atherosclerotic plaque because of its high resolution and ability to assess calcium. Since it is noninvasive, MDCT may be an effective way to screen patients with significant blockages to determine who requires preventive surgery and who does not.

The researchers assessed MDCT images of patients with artery blockages of 50 percent or more. The study group included 35 patients who had suffered a stroke or had other neurological symptoms. The remaining 67 had no history of symptoms.



Source-Erekalert
PRI
'"/>




Related medicine news :

1. Dangers of Low Calcium Intake
2. Calcium reduces colon cancer risk
3. Calcium-blocker delays atherosclerosis than beta-blockers
4. Can Calcium Help Reduce Weight?
5. The Role Of Calcium In The Formation Of Kidney Stones
6. The Role Of Calcium In The Formation Of Kidney Stones
7. The Role Of Calcium In The Formation Of Kidney Stones
8. The Benefits Of Calcium Supplements
9. Calcium-rich Diet Good For Youngsters
10. Calcium and Vitamin D Supplements Could Be Effective In Treating Patients With Osteoporosis
11. Calcium and Vitamin D reduces risk of Premenstrual syndrome
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/24/2016)... , ... June 24, 2016 , ... Global law firm ... 2016 Legal Elite. The attorneys chosen by their peers for this recognition are considered ... Seven Greenberg Traurig Shareholders received special honors as members of this year’s Legal Elite ...
(Date:6/24/2016)... ... 2016 , ... Comfort Keepers® of San Diego, CA is excited to announce ... program to drive cancer patients to and from their cancer treatments. Comfort Keepers ... of life and ongoing independence. Getting to and from medical treatments is one ...
(Date:6/24/2016)... ... June 24, 2016 , ... People across the U.S. are sharpening their ... Award, an essay contest in which patients and their families pay tribute to a ... the 2016 National Society of Genetic Counselors (NSGC) Annual Education Conference (AEC) this September. ...
(Date:6/24/2016)... York, NY (PRWEB) , ... June 24, 2016 ... ... publication Haute Living, is proud to recognize Dr. Barry M. Weintraub as a ... that “the most beautiful women in the world, and the most handsome men, ...
(Date:6/24/2016)... ... June 24, 2016 , ... Strategic Capital ... area economy by obtaining investment capital for emerging technology companies. SCP has ... have already resulted in more than a million dollars of capital investment for ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... DUBLIN , June 23, 2016 ... the "Surgical Procedure Volumes: Global Analysis (United States, ... Australia, Canada)" report to their offering. ... an essential tool for healthcare business planners, provides surgical ... looks at surgery trends with an in-depth analysis of ...
(Date:6/23/2016)... YORK , June 23, 2016 ... waters, but it continues to present great opportunities to ... companies for today: Intrexon Corp. (NYSE: XON ... Arena Pharmaceuticals Inc. (NASDAQ: ARNA ), and ... more about these stocks and receive your complimentary trade ...
(Date:6/23/2016)... DIEGO , June 23, 2016 ... programs that address medical conditions resulting from a ... it has appointed Greg Doyle as ... of Leading BioSciences, executive management team and board ... and chief financial officer. He will provide continued ...
Breaking Medicine Technology: