Navigation Links
People with sleep apnea at higher risk for aggressive heart disease
Date:11/30/2010

CHICAGO People with obstructive sleep apnea (OSA), a sleep disorder associated with obesity, have more non-calcified or "bad" plaque in their coronary arteries, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).

"Our study reveals that individuals with obstructive sleep apnea are prone to developing an aggressive form of atherosclerosis that puts them at risk for impaired blood flow and cardiovascular events," said U. Joseph Schoepf, M.D., professor of radiology and medicine and director of cardiovascular imaging at the Medical University of South Carolina in Charleston, S.C.

OSA is caused by obstruction of the upper airway during sleep and is characterized by periodic pauses in breathing, which last for 10 or more seconds. OSA is also commonly associated with snoring.

According to the National Heart, Lung and Blood Institute, millions of Americans have OSA, and approximately half of them are overweight.

In the study, 49 obese patients, mean age 61, with OSA and a mean body mass index (BMI) of 33, and 46 obese patients without the disorder (mean age of 60 and mean BMI of 30) underwent coronary CT angiography (cCTA), which provides detailed pictures and information on plaque buildup and narrowing in the vessels. The OSA group included 26 men and 23 women, and the matched control group included 22 men and 24 women.

The imaging revealed that the amount of calcified plaque in the coronary arteries was not significantly different between the two groups, but the overall composition of vessel plaque was notably different.

"Compared to the non-OSA group, the patients with OSA had a significantly higher prevalence of non-calcified and mixed plaque," Dr. Schoepf said.

Non-calcified plaque is considered bad plaque, because it is more vulnerable to rupturing and causing a blood clot, which could lead to a heart attack or other cardiovascular event.

Patients with OSA also had a significantly higher prevalence of vessel narrowing and more extensive vessel involvement. Eighty-eight percent of OSA patients had narrowing in at least one vessel, compared to 59 percent of non-OSA patients. One-third of OSA patients had narrowing in four vessels.

"Coronary CT angiography is an effective way to noninvasively diagnose non-calcified and mixed plaque," Dr. Schoepf said. "With technological advancements that are lowering the radiation dose required for cCTA, this exam could become a screening tool for obese individuals at increased risk for cardiovascular disease."


'/>"/>

Contact: Linda Brooks
lbrooks@rsna.org
630-590-7762
Radiological Society of North America
Source:Eurekalert

Related medicine news :

1. New spinal implant will help people with paraplegia to exercise paralyzed limbs
2. Depression linked to HIV risk among South African young people, study shows
3. Sight of Meat Puts People at Ease, Study Suggests
4. APHA 2010: Health-care reform and people with disabilities
5. Could Anger Make People Want Things More?
6. Self awareness can help people navigate rocky seas of relationships
7. People with specific kind of lung cancer respond to new targeted treatment
8. Testing lifestyle changes to improve health for people with HIV infections
9. People Less Likely to Buy Junk Food When Paying Cash
10. People With Anorexia May Risk Serious Eye Damage
11. Research shows unemployment programs lacking for people with disabilities
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/23/2017)... ... February 23, 2017 , ... Rosica Communications, a national ... social media management, corporate communications, SEO and cause marketing, is opening an office ... New Hampshire, Massachusetts and Canada, Rosica will focus on expanding its footprint. ...
(Date:2/23/2017)... ... February 23, 2017 , ... ... host a diverse symposium on “Doping in Sport: How the Culture Might ... Richter & Hampton LLP. The symposium will be held at Pepperdine University in ...
(Date:2/23/2017)... ... 2017 , ... Pink Pig Publishing LLC announces the launch ... the world from different perspectives. By providing a place for people of all ... empathy, and find greater happiness. , "Our approach to structuring content is ...
(Date:2/23/2017)... ... February 23, 2017 , ... Current ... will soon begin franchising throughout the U.S. starting this spring. Current Meditation focuses ... practice of meditation mainstream. Current Meditation will be the first meditation concept in ...
(Date:2/23/2017)... ... February 23, 2017 , ... The Center ... Rhode Island Consortium for Autism Research and Treatment (RI-CART) and Cinemaworld to present ... spectrum disorder (ASD) to see films in an environment that accommodates their unique ...
Breaking Medicine News(10 mins):
(Date:2/23/2017)... -- According to a new market research ... Analog), MRI (Closed, Open), Ultrasound, CT, Nuclear Imaging (SPECT, ... (Hospitals, Imaging Centers) - Global Forecast to 2021", published ... the forecast period of 2016 to 2021. The market ... at a CAGR of 6.6% from 2016 to 2021. ...
(Date:2/23/2017)... Persistence Market Research has ... for intraoperative imaging, excerpts from which predict the ... million. According to the report, the demand for ... of increasing adoption of minimally-invasive surgeries and remarkable ... for neurosurgeries. The world,s leading medical research institutes ...
(Date:2/23/2017)... DUBLIN , Feb 23, 2017 Research ... Prosthetic Devices Market Analysis & Trends - Industry Forecast to 2025" ... ... to grow at a CAGR of around 9.2% over the next ... industry report analyzes the market estimates and forecasts for all the ...
Breaking Medicine Technology: