Navigation Links
Secondhand Smoke May Harm Heart Function
Date:5/14/2012

MONDAY, May 14 (HealthDay News) -- For nonsmokers, exposure to low levels of secondhand smoke for just 30 minutes can cause significant damage to the lining of their blood vessels, the results of a new study indicate.

The findings could have major public health implications because this type of damage has been associated with atherosclerosis (hardening of the arteries), which can lead to heart attack or stroke.

"Breathing in very low levels of secondhand smoke -- the same amount many people and children would encounter out and about in the community -- appears to impair one's vascular function after just 30 minutes of exposure," the study's lead investigator, Dr. Paul Frey, of the division of cardiology at San Francisco General Hospital, said in a news release from the American College of Cardiology.

"These findings have significant public health implications," Frey added. "We saw a steep decline in vascular function even after a very short exposure to low levels of secondhand smoke, and that's very concerning."

The researchers used a smoking machine to produce specific particulate concentrations and measured its effects on 33 healthy nonsmokers ranging in age from 18 to 40 years old. The nonsmokers were divided into three groups and exposed to one of three levels of secondhand smoke: clean air; lower levels of lingering smoke found in smokers' homes or a restaurant; and high levels found in a smoky bar or casino.

"We were able to faithfully characterize the concentration of secondhand smoke people were exposed to and produce very low levels that have not often been studied," Frey explained.

The study, published in the May 22 issue of the Journal of the American College of Cardiology, revealed that a major blood vessel found in the upper arm, called the brachial artery, did not dilate properly in the people exposed to lingering secondhand smoke. This happened, the authors explained, because the inner lining of the blood vessels was not working properly.

The investigators noted that the effect on the participants' cardiovascular function may have been greater if the study repeated short exposure rather than measure a one-time interval. Repeated exposure would also more closely resemble everyday life, they pointed out in the news release.

The researchers concluded that more comprehensive policies are needed to ban public smoking. They also suggested that doctors should talk to their patients about whether or not they live with a smoker or are occasionally around or near people who smoke.

"Smoking remains one of the most preventable risk factors for cardiovascular disease," Frey said. "We hope this study will reinforce to smokers the danger their habit has -- not only on their own heart health, but also to other people -- even if they move to the next room or smoke for short durations."

Although the study uncovered an association between secondhand smoke and blood vessel damage, it did not prove a cause-and-effect relationship.

More information

The U.S. Centers for Disease Control and Prevention has more about secondhand smoke .

-- Mary Elizabeth Dallas

SOURCE: American College of Cardiology, news release, May 14, 2012


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

Related medicine news :

1. Exposure to secondhand smoke among children in England has declined since 1996
2. Research finds hazards from secondhand smoke in bars and restaurants
3. Secondhand Smoke Starts Damaging Arteries in Childhood
4. Secondhand Smoke Boosts Sinusitis Risk
5. Smoke-free air laws effective at protecting children from secondhand smoke
6. Secondhand Smoke May Put Kids at Risk for Diseases
7. Secondhand television exposure linked to eating disorders
8. Secondhand Smoke Tied to High Blood Pressure in Kids
9. Moderate levels of secondhand smoke deliver nicotine to the brain
10. Secondhand Smoke May Trigger Nicotine Craving
11. ADHD, Learning Issues May Be Linked to Secondhand Smoke
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Secondhand Smoke May Harm Heart Function
(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association (VNA) of Somerset Hills ... specialty vendors and unique items from across the nation, this holiday-themed event will raise ... offered by the VNA. The boutique will be open Saturday, November 4 (10:00 ...
(Date:10/13/2017)... ... , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has ... least understood books in the Holy Scriptures, Revelation. The Book of Revelation paints a ... centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins says that ...
(Date:10/13/2017)... ... 2017 , ... “The Journey: From the Mountains to the Mission Field”: the ... in the Philippines. “The Journey: From the Mountains to the Mission Field” is the ... She has taught all ages and currently teaches a class of ladies at her ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... treating sleep apnea using cutting-edge Oventus O2Vent technology. As many as ... disorder characterized by frequent cessation in breathing. Oral appliances can offer significant relief ...
(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 ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)...  Eli Lilly and Company (NYSE: LLY ... quarter of 2017 on Tuesday, October 24, 2017. Lilly ... with the investment community and media to further detail ... will begin at 9 a.m. Eastern time. Investors, media ... of the conference call through a link that will ...
(Date:10/2/2017)... , Oct. 2, 2017 Halo Labs announces the European ... system called the HORIZON at MIBio 2017 in Cambridge, ... and visible particulate matter in biopharmaceutical samples with unprecedented speed and ... the novel technique Backgrounded Membrane Imaging. ... The HORIZON subvisible particle analysis system ...
(Date:9/28/2017)... , Sept. 28, 2017 Hill-Rom Holdings, ... 2017 earnings conference call and webcast on Friday, November ... a.m. (EDT) and ending at approximately 8:30 a.m. (CDT) ... discussing the company,s 2017 financial performance and guidance for ... opportunities, initiatives to enhance operational performance, and long-range financial ...
Breaking Medicine Technology: