Navigation Links
Irregular Heartbeat Poses Greater Stroke Risk for Women Than Men
Date:5/9/2012

By Steven Reinberg
HealthDay Reporter

TUESDAY, May 8 (HealthDay News) -- Older women with the irregular heartbeat known as atrial fibrillation face a 14 percent greater risk of stroke than men with the same condition, Canadian researchers report.

The raised risk remained higher even when women were taking the blood-thinner warfarin (Coumadin) to prevent stroke, the study authors noted.

"Previously, there was a common belief that women were undertreated, and this was the cause for the higher risk of stroke," said lead researcher Dr. Louise Pilote, director of the division of general internal medicine at McGill University and McGill University Health Center in Montreal.

"Our current paper shows that this is not the situation and, compared to men, women have higher risk for stroke regardless of warfarin prescriptions," she said. "This study should alert doctors treating patients with atrial fibrillation that women, especially older women, have a higher risk for stroke compared with men, and therefore sex should weigh in the decision to start a patient on blood-thinners and the dose should be followed closely."

The report was published in the May 9 issue of the Journal of the American Medical Association.

To see if there were differences in the risk of stroke between men and women with atrial fibrillation, Pilote's group collected data on more than 39,000 men and 44,000 women aged 65 and older.

Although both men and women were taking the blood-thinner warfarin, the researchers found more women (5.8 percent) than men (4.3 percent) suffered strokes.

The difference between men and women was particularly strong among those aged 75 and older, where women were more prone to stroke regardless of warfarin use or adherence to taking the blood-thinner, the investigators found.

Atrial fibrillation is a common cardiac arrhythmia that affects an estimated 2.2 million Americans, the researchers noted.

People with atrial fibrillation have a fivefold increase in the risk of stroke compared with the general population, which is why blood-thinners are prescribed for these patients, they explained.

Dr. Gregg Fonarow, a professor of cardiology at the University of California, Los Angeles, said that "a number of recent studies have suggested that women with atrial fibrillation are at even greater risk for stroke than men, and recent updates to stroke risk prediction tools in patients with atrial fibrillation have integrated this information."

The reasons for gender-based differences in stroke risk have not been entirely clear, but differences in use of blood-thinning treatment has been hypothesized.

"While determining the mechanisms accounting for this higher stroke risk in women requires further study, physicians should be aware of this especially high risk of stroke in women and optimize stroke prevention therapies," Fonarow said.

More information

For more on atrial fibrillation, visit the American Heart Association.

SOURCES: Louise Pilote, M.D., M.P.H., Ph.D., professor, medicine, James McGill Chair and director, division of general internal medicine, McGill University and McGill University Health Center, Montreal; Gregg Fonarow, M.D., professor, cardiology, University of California, Los Angeles; May 9, 2012, Journal of the American Medical Association


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

Related medicine news :

1. More Babies Today Have Irregular Head Shape: Expert
2. Stopping Blood Thinners Raises Stroke Risk for Patients With Irregular Heartbeat
3. Irregular Heartbeat May Predict Mental Decline in Some
4. Even When Silent, Irregular Heartbeat Linked to Stroke Risk
5. Nerve Snip Might Ease Dangerous Irregular Heartbeat
6. Obese Patients May Benefit the Most From Surgery for Irregular Heartbeat
7. Experimental Drug for Irregular Heart Rhythm Raises Death Risk: Study
8. Many With Irregular Heartbeat Unaware of Raised Stroke Risk
9. New Blood Thinner May Outperform Warfarin for Irregular Heartbeat
10. Study Pits New Blood Thinner Against Warfarin For Irregular Heartbeat
11. Smoking Linked to Raised Risk of Irregular Heartbeat, Study Finds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Irregular Heartbeat Poses Greater Stroke Risk for Women Than Men
(Date:7/20/2017)... ... July 20, 2017 , ... ... IT operations analytics and application performance monitoring (APM) solutions, has expanded its ... services providers. , According to Peter Ohrenberger, sales director at Nastel, “We’ve ...
(Date:7/20/2017)... ... July 20, 2017 , ... ... platform, in which their iMedSecure™ comes included with each system installation. RMT’s ... images to remote participants for real-time collaboration and immediate decision-making requirements. While ...
(Date:7/20/2017)... ... July 20, 2017 , ... Vixiar ... non-invasive devices and systems for monitoring cardiopulmonary diseases, announced today that it has ... to complete regulatory submissions and fund final engineering and initial production of the ...
(Date:7/20/2017)... , ... July 20, 2017 , ... The Dermatology Clinic ... Dr. Dunbar received his BS in Biology from LSU, graduating summa cum laude. He ... Class President. After his residency in St. Louis, Dr. Dunbar moved to New York ...
(Date:7/20/2017)... CA (PRWEB) , ... July 20, 2017 , ... ... A Guide to the Business Architecture Body of Knowledge (BIZBOK® Guide )v 6.0 ... members who contributed to this effort through Guild collaborative teams. , Non-members may ...
Breaking Medicine News(10 mins):
(Date:7/11/2017)...  Bayer has awarded grants totaling more than $2 million ... prestigious Bayer Hemophilia Awards Program (BHAP). Four U.S. clinicians and ... and Uniformed Services University of the Health Sciences in ... recipients were announced last night during a reception at the ... Berlin, Germany . ...
(Date:7/11/2017)... LINCOLNSHIRE, Ill. , July 11, 2017 /PRNewswire/ ... hematology and urinalysis diagnostic testing equipment as well ... latest innovation: a way to make quality assurance ... control processes. "Sysmex is well known for the ... SM Quality Monitor elevates quality assurance processes ...
(Date:7/11/2017)... Oramed Pharmaceuticals Inc. (NASDAQ: ORMP ) ( ... development of oral drug delivery systems, announced today that ... to schedule an End-of-Phase II meeting with Oramed for ... insulin capsule ORMD-0801 in the treatment of type 2 ... endpoints by indicating a statistically significant lowering of glucose ...
Breaking Medicine Technology: