Featured Research

from universities, journals, and other organizations

Smokers more than double their risk of burst aneurysm

Date:
August 29, 2012
Source:
BMJ-British Medical Journal
Summary:
Smoking more than 20 cigarettes a day doubles the risk of a potentially fatal brain bleed as a result of a burst aneurysm, new research finds.

Smoking more than 20 cigarettes a day doubles the risk of a potentially fatal brain bleed as a result of a burst aneurysm, finds research published online in the Journal of Neurology Neurosurgery and Psychiatry.

If a smoker quits, the risk diminishes over time, but it still persists suggests the study.

An aneurysm is a bulge in a weakened artery, which, if it bursts causes blood to leak into the brain. The chances of surviving a ruptured aneurysm are only about 50% and those who do survive often live with disability for the rest of their life.

The researchers base their findings on 426 cases of brain bleeds (subarachnoid haemorrhage), drawn from 33 hospitals across Korea between 2002 and 2004, and a comparison group of 426 people, matched for age and sex, who had not sustained a haemorrhage.

Detailed information on lifestyle, medical history and smoking habits were obtained from all participants whose average age was 50.

The number of smokers was greater in the brain bleed group, as were the proportions of those with a family history of stroke and high blood pressure.

Just under 38% of those who had had a brain bleed were current smokers, compared with one in four (just over 24%) of those in the comparison group.

After taking account of influential factors, such as salt intake, working hours, weight and family history of diabetes, smokers were almost three times as likely to have a brain bleed as non-smokers.

The impact of smoking was cumulative: the longer and more heavily a person had smoked, the greater was their risk of a brain bleed.

Quitting smoking cut the risk of a ruptured aneurysm by 59% after five or more years -- bringing it down to the level of non-smokers. But this was not the case among heavy smokers.

Those who had smoked 20 or more cigarettes a day were still more than twice as likely to have a ruptured aneurysm as those who had never smoked.

The authors point out that previous long term research has indicated that the risk of an aneurysm in former smokers disappears after 10 to 15 years. But these studies either included only one gender and/or included too few people to draw firm conclusions.

In the short term, smoking thickens blood and drives up blood pressure, both of which can increase the risk of a brain bleed. These effects can be reversed by stopping smoking.

But smoking also induces permanent changes in the structure of artery walls, say the authors. These changes may be greater in heavy smokers, they say.


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. C. K. Kim, B. J. Kim, W.-S. Ryu, S.-H. Lee, B.-W. Yoon. Impact of smoking cessation on the risk of subarachnoid haemorrhage: a nationwide multicentre case control study. Journal of Neurology, Neurosurgery & Psychiatry, 2012; DOI: 10.1136/jnnp-2012-302538

Cite This Page:

BMJ-British Medical Journal. "Smokers more than double their risk of burst aneurysm." ScienceDaily. ScienceDaily, 29 August 2012. <www.sciencedaily.com/releases/2012/08/120829195212.htm>.
BMJ-British Medical Journal. (2012, August 29). Smokers more than double their risk of burst aneurysm. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2012/08/120829195212.htm
BMJ-British Medical Journal. "Smokers more than double their risk of burst aneurysm." ScienceDaily. www.sciencedaily.com/releases/2012/08/120829195212.htm (accessed October 1, 2014).

Share This



More Mind & Brain News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Do Video Games Trump Brain Training For Cognitive Boosts?

Do Video Games Trump Brain Training For Cognitive Boosts?

Newsy (Sep. 29, 2014) More and more studies are showing positive benefits to playing video games, but the jury is still out on brain training programs. Video provided by Newsy
Powered by NewsLook.com
Your Spouse's Personality May Influence Your Earnings

Your Spouse's Personality May Influence Your Earnings

Newsy (Sep. 26, 2014) Research from Washington University suggest people with conscientious spouses have greater career success. Video provided by Newsy
Powered by NewsLook.com
Can A Blood Test Predict Psychosis Risk?

Can A Blood Test Predict Psychosis Risk?

Newsy (Sep. 26, 2014) Researchers say certain markers in the blood can predict risk of psychosis later in the life. The test can aid in early treatment for the condition. Video provided by Newsy
Powered by NewsLook.com
Harpist Soothes Gorillas, Orangutans With Music

Harpist Soothes Gorillas, Orangutans With Music

AP (Sep. 25, 2014) Teri Tacheny, a harpist, has a loyal following of fans who appreciate her soothing music. Every month, gorillas, orangutans and monkeys amble down to hear her play at the Como Park Zoo in Minnesota. (Sept. 25) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins