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:10/13/2017)... ... 2017 , ... The Visiting Nurse Association (VNA) of Somerset Hills is proud ... and unique items from across the nation, this holiday-themed event will raise funds and ... the VNA. The boutique will be open Saturday, November 4 (10:00 a.m. – ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... viewers the lowdown on sciatica in a new episode of "Success Files," which ... current events and innovation and investigates each subject in-depth with passion and integrity. ...
(Date:10/12/2017)... ... 12, 2017 , ... First Healthcare Compliance (FHC), an industry ... a range of technology and learning solutions at the 68th Annual American Healthcare ... be held October 14–18, 2017 at the Mandalay Bay Resort in Las Vegas, ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( https://isocomforter.com ), one ... an innovative new design of the shoulder pad. The shoulder pad provides optimal ... controlling your pain while using cold therapy. By utilizing ice and water that is ...
(Date:10/12/2017)... ... October 12, 2017 , ... Dr. Parsa Mohebi, the Los ... article to the newly revamped Cosmetic Town journal section, featuring articles ... procedure known as Follicular Unit Extraction (FUE). , Dr. Mohebi says ...
Breaking Medicine News(10 mins):
(Date:9/25/2017)...   Montrium , an industry leader in ... IQPC Trial Master Files & Inspection Readiness Conference ... Clinical Services has selected eTMF Connect ... EastHORN, a leading European contract research organization (CRO), ... to enable greater collaboration with sponsors, improve compliance ...
(Date:9/23/2017)... Sept. 22, 2017 Janssen Biotech, Inc. (Janssen) ... letter from the U.S. Food and Drug Administration (FDA) ... sirukumab for the treatment of moderately to severely active ... clinical data are needed to further evaluate the safety ... active RA. ...
(Date:9/22/2017)... AVACEN Medical (AVACEN) announced that its CE-Marked ... those with the widespread pain associated with fibromyalgia in ... Essex, England commented, "I had ... no sleep at all, tremendous pain, with every movement ... [the AVACEN 100] enough, how this has and is ...
Breaking Medicine Technology: