Navigation Links
Preventing Second Stroke May Stave Off Dementia
Date:9/23/2009

Not all agree, though, that biggest risk factor is the brain attack itself

WEDNESDAY, Sept. 23 (HealthDay News) -- The way to reduce the chances of developing dementia such as Alzheimer's disease after a stroke is to prevent a second stroke by concentrating on all the known stroke risk factors, a new British study suggests.

Two major findings emerged from an analysis of 30 previous studies that involved more than 7,500 people who had suffered a stroke, said Dr. Sarah Pendlebury, a senior clinical fellow at the Stroke Prevention Research Unit of John Radcliffe Hospital in Oxford and lead author of a report published online Sept. 23 in The Lancet Neurology.

"First, there is a clear relationship between having multiple strokes and the risk of dementia," Pendlebury said. "If someone has multiple strokes at the same time, that person has a strong risk of becoming demented in the first month."

"Second, the data suggest that the presence of complications after stroke -- such as hypertension [high blood pressure], low oxygen saturation, cardiac events and seizures -- also increases the risk of developing dementia."

Because of this, Pendlebury said, the focus of stroke treatment units should be on all the risk factors for stroke. "So, to prevent worsening of damage to the brain, the patient must be maintained in as stable a condition as is possible," she said. "We must prevent either high or low blood pressure and maximize all other secondary prevention measures."

The study found that dementia rates in the first year after a stroke vary widely, ranging from 7.4 percent in population-based studies of stroke victims who did not previously have dementia to 41.3 percent in hospital-based studies that included people who had signs of dementia before a stroke.

But the study's conclusion that the risk of dementia was associated with the risk and number of strokes, rather than underlying risk factors for cardiovascular diseases, was contested in an accompanying editorial by Dr. Michael G. Hennerici, chairman of neurology at the University of Heidelberg in Germany.

"This study lumps together several studies that have been performed in the last 30 years," Hennerici said. "These studies are of very different quality. From these data, they draw the conclusion that stroke per se has a risk of post-stroke dementia. I question this finding because, according to the data, it is not stroke itself but rather an additional neurodegeneration that is ongoing, or additional changes in the brain in combination with stroke, that produces post-stroke dementia."

Hennerici's interpretation is that treatment of one major risk factor, hypertension, is essential to prevent both stroke and the underlying deterioration of brain function that leads to dementia.

"Hypertension is the best treatable risk factor for dementia and stroke," he said. "It should be addressed even in those patients who are not hypertensive but who have other risk factors, such as diabetes and advanced age. The aging population should be carefully treated with hypertensive agents and also should be advised about methods of dealing with other hypertension risk factors, such as reduced salt intake, exercise and lifestyle changes."

That recommendation drew no argument from Pendlebury. "Yet more aggressive treatment of high blood pressure can help prevent dementia, and also stroke," she said.

More information

The U.S. Centers for Disease Control and Prevention has more on preventing a stroke.



SOURCES: Sarah Pendlebury, M.D., senior clinical fellow, Stroke Prevention Research Unit, John Radcliffe Hospital, Oxford, England; Michael G. Hennerici, M.D., chairman, neurology, University of Heidelberg, Germany; Sept. 23, 2009, The Lancet Neurology, online


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Cost Savings Adds to Value of Preventing Chronic Disease
2. Joint Commission Alert: Effective Leadership Critical to Preventing Medical Errors
3. Study shows carvedilol is effective in preventing variceal bleeding in cirrhotic patients
4. Once Again, House Rejects Amendment Preventing Taxpayer Funding for Abortion
5. Preventing toxic shock syndrome and other severe diseases
6. Morehead Presents Webinar on Preventing Physician Disloyalty: Building Stability and Trust with 'At-Risk' Physicians
7. The Rasansky Law Firm Publishes Guide for Identifying, Preventing Childcare and Daycare Abuse
8. Report: Asbestos Litigation Disaster for Investors Could Be Repeated With Nanotechnology Unless SEC and FASB Close Eight Major Loopholes Now Preventing Honest Disclosures
9. JustAnswer(R) and Glaucoma Research Foundation Help Individuals See the Light in Preventing Blindness
10. Importance of preventing congestion in heart failure
11. Preventing Dangerous Slips and Falls: The American Foundation for the Blind Launches New Video Series on Staying Safe at Home
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Preventing Second Stroke May Stave Off Dementia
(Date:2/23/2017)... ... (PRWEB) February 23, ... the nation to come together to combine its favorite springtime ... its favorite fruit – apples! To celebrate National Nutrition Month, ... the “Apple Madness” bracket tournament – a five-week, five-round online ...
(Date:2/23/2017)... MN (PRWEB) , ... February 23, 2017 , ... HealthPostures, ... is sending an expert sit stand solutions representative to the Minneapolis Home and Garden ... Location for the event that is garnering national attention is the Minneapolis Convention Center. ...
(Date:2/22/2017)... ... 22, 2017 , ... Our high-octane society demands higher stands ... brain. , Power On, a mental performance enhancer from Modus Nutrition, provides scientifically ... capsule contains Cognizin® Citicoline, a branded form of the brain health nutrient citicoline ...
(Date:2/22/2017)... ... February 22, 2017 , ... Secure Exchange ... the largest network of hospitals, health information exchanges, physicians and patients, announced today ... Technology (ONC-HIT) 2015 Edition Health IT Module Certification via Drummond Group LLC, an ...
(Date:2/22/2017)... ... February 22, 2017 , ... ... advanced data analytics to accurately understand each Medicare Advantage member’s risk, identify ... given population. This new solution helps transform the HCC Risk Adjustment process ...
Breaking Medicine News(10 mins):
(Date:2/23/2017)... -- LG Innotek hat heute die weltweit erste 70 mw ... 1,5-fache des 45-mW-Moduls der Konkurrenz. UV-C LED ... 280 nm und eignet sich damit für Sterilisationsaufgaben. Es verhindert ... Das Produkt von LG Innotek erzeugt UV-Strahlung im Bereich ... ...
(Date:2/23/2017)... China , 23. Februar 2017 Im ... , eine nationale Wirtschaftszone in der südwestlichen chinesischen Provinz Guizhou, ... der Errichtung einer Innovationsplattform aktiv an der Entwicklung einer eingebetteten ... Continue Reading ... ...
(Date:2/23/2017)... COTTAGE, New York , February 23, 2017 /PRNewswire/ ... health implications arising from increasing caseload for varicose veins ... recorded across the globe are prompting the adoption of ... latest study on global endovenous laser therapy ... attention towards aftereffects of lifestyle choices and consequences of ...
Breaking Medicine Technology: