Navigation Links
Stroke therapy window might be extended past nine hours for some
Date:2/9/2009

OAK BROOK, Ill. (Feb. 9, 2009) Some patients who suffer a stroke as a result of a blockage in an artery in the brain may benefit from a clot-busting drug nine or more hours after the onset of symptoms. The findings are published in the online edition of Radiology.

"Stroke is the third leading cause of death in the U.S.," said the study's lead author, William A. Copen, M.D., Director of Advanced Magnetic Resonance Neuroimaging at Massachusetts General Hospital (MGH) in Boston. "Every hour that we can add to the treatment window would allow vastly more stroke patients to be treated with potentially life-saving therapy."

The most common type of stroke is called ischemic stroke. These strokes occur when a blood clot blocks a blood vessel supplying blood to the brain. Some ischemic strokes can be treated with thrombolytic, or clot-busting, therapy using tissue plasminogen activator (t-PA), which helps dissolve the blockage. However, the window of opportunity to safely administer the medication is generally considered to be just three hours. Because few patients get to the hospital to be diagnosed and treated within that time frame, fewer than seven percent of patients receive the drug.

In this retrospective study, researchers analyzed the test results of 109 ischemic stroke patients at MGH. The testing methods included two different MRI scanning techniques: perfusion MRI, which measures blood flow in the brain, and diffusion MRI, which measures the movement of water molecules in tissue.

"Comparing the lesions that we see in these two MR images reveals which areas of the brain are threatened by a lack of blood flow, but could still be salvageable," Dr. Copen said. "A mismatch between the lesions suggests that a patient might still benefit from thrombolytic therapy."

In the study, most patients with blockage in a proximal artery, close to the base of the brain, continued to demonstrate a diffusion-perfusion mismatc
'/>"/>

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

Page: 1 2

Related medicine news :

1. Study, meta-analysis examine factors associated with death from heatstroke
2. High alcohol consumption increases stroke risk among Chinese men
3. Heavy Drinking Boosts Stroke Risk for Chinese Men
4. High alcohol consumption increases stroke risk, Tulane study says
5. Broad-based group of physicians calls for improvement in stroke treatment
6. Continued Statin Use Boosts Post-Stroke Outcomes
7. U.S. Initiative Seeks to Boost Hispanic Stroke Awareness
8. Stopping Statins After Stroke Doubles Death Risk
9. Can brain-injured, partially-blind stroke patients regain some of their lost vision?
10. REACH Registry Highlights That Patients With Peripheral Arterial Disease (PAD) Suffer High Rates of Heart Attack, Stroke, Hospitalization, and Death
11. Link Between Air Pollution, Stroke Gets Clearer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/1/2015)... (PRWEB) April 01, 2015 Health Advocate™, ... and a subsidiary of West Corporation, today launched its ... http://blog.healthadvocate.com and through the Health Advocate member ... consumers get, and stay, healthy. , “We’re pleased to ... to the public,” said Martin Rosen, Executive Vice President, ...
(Date:4/1/2015)... Atlanta, GA (PRWEB) April 01, 2015 ... Emergency Medicine Practice, Pediatric Emergency Medicine Practice, and ... it has partnered with AgileMD to provide the ... Practice , in a mobile application format available ... , “Our collaboration with AgileMD to develop ...
(Date:4/1/2015)... 01, 2015 The U.S. Department of ... than 123,000 patients who are waiting for a lifesaving ... this surprising statistic. , In the “Play ... Compton, a PGA TOUR golfer and two-time heart transplant ... to become organ donors. He inspires viewers by ...
(Date:4/1/2015)... April 01, 2015 Pricing Healthcare has ... several months, bring coverage to a third of all US ... of Massachusetts, Kansas, and Iowa, and the first dedicated eye center ... in Dallas, TX was also added. , In addition, the site ... and general interest in the platform continue to grow across the ...
(Date:4/1/2015)... Amercanex Corporation, today announced that Native Roots ... and will conduct its wholesale business thru Amercanex proprietary ... as one of the oldest and largest dispensaries in ... in 9 locations with plans of expansion to other ... to have Native Roots join Amercanex as they are ...
Breaking Medicine News(10 mins):Health News:Health Advocate Launches New Health and Wellness Blog 2Health News:EB Medicine Partners With AgileMD on Mobile Application for Emergency Medicine Clinicians 2Health News:EB Medicine Partners With AgileMD on Mobile Application for Emergency Medicine Clinicians 3Health News:Donate Life America and Genentech have Partnered to Develop the “Play Through with Erik Compton to Donate Life" Public Service Announcement 2Health News:PricingHealthcare.com Adds Facilities in 5 States, Hits 10,000 Monthly Users Milestone 2Health News:PricingHealthcare.com Adds Facilities in 5 States, Hits 10,000 Monthly Users Milestone 3Health News:Amercanex, Native Roots form Exclusive Relationship to facilitate Wholesale Business 2Health News:Amercanex, Native Roots form Exclusive Relationship to facilitate Wholesale Business 3
... people are turning to the Internet to find information, important ... sheer avalanche of facts// now available online. Key science sites ... results. ,New research funded by the Economic and ... Web to make their information available must now pay attention ...
... during the 85th General Session of the International ... reporting that they have developed an effective program ... an innovative school-based cavity prevention program, which provides ... exams, cleanings and preventive care. For children enrolled ...
... are non-carbonated and do not contain the acids that ... the March/April 2007 issue of General Dentistry. ... that the only concern is sugar content. Most choose ... diet drinks contain phosphoric acid and/or citric acid and ...
... A drug used to strengthen bone has been found to ... with Parkinson disease//, according to a study. ,The ... Tokyo, Japan. Half of the group received the drug risedronate ... D2. ,The study found the men taking ...
... of an epidemic if parents do not get their ... 119 lives in the state last year. ... get their wards immunized against Japanese encephalitis, the situation ... IANS. ,A massive vaccination program launched by ...
... center and cervical cancer screening program will be inaugurated Thursday ... of Tamil Nadu. ,Colposcopy is a diagnostic tool ... ,Pap smear is collection of cells from ... after George Papanicolaou an American anatomist. It is used ...
Cached Medicine News:Health News:Key Science Web Sites Buried in Information Avalanche 2Health News:Forsyth Scientists Wiping Out Tooth Decay Through School-based Cavities Prevention Program 2Health News:Scare in Assam Over Japanese Encephalitis Vaccine 2
(Date:4/1/2015)... 1, 2015  Philips Respironics, a division of Royal ... the Pico nasal mask is now available in ... of obstructive sleep apnea (OSA). Designed to maximize comfort and ... air pressure (CPAP) mask available on the market to treat ... solutions, will be on display at Medtrade Spring ...
(Date:4/1/2015)... 2015   Advocates for Responsible Care , a ... care professionals, patient advocates and human rights specialists, today ... go live at 9:00 a.m. today. Logo ... is a new campaign to limit rising out-of-pocket costs ... Advocates for Responsible Care, in partnership with the Specialty ...
(Date:4/1/2015)... , April 1, 2015  Galmed Pharmaceuticals ... biopharmaceutical company focused on the development and commercialization ... of liver diseases and cholesterol gallstones, today announced ... as Vice President of Clinical Operations. ... in clinical operations, development and regulatory affairs.  From ...
Breaking Medicine Technology:Philips Pico CPAP Nasal Mask Now Available in the United States 2Philips Pico CPAP Nasal Mask Now Available in the United States 3'Rx in Reach' Campaign Launches in Georgia 2'Rx in Reach' Campaign Launches in Georgia 3Galmed Pharmaceuticals Announces the Appointment of George Tonelli as Vice President of Clinical Operations 2Galmed Pharmaceuticals Announces the Appointment of George Tonelli as Vice President of Clinical Operations 3
... a minimally invasive, highly effective surgical alternative ... GYNECARE TVT is positioned close to the ... when needed, TVT provides tension-free support of ... procedure takes approximately 20 to 30 minutes, ...
...
...
...
Medicine Products: