Featured Research

from universities, journals, and other organizations

Diabetic stroke risk after AMI drops in 10 year period

Date:
August 31, 2013
Source:
European Society of Cardiology
Summary:
The risk of ischemic stroke after acute myocardial infarction in diabetics has dropped over a 10 year period, according to a new study of more than 173,000 AMI patients.

The risk of ischemic stroke after acute myocardial infarction in diabetics has dropped over a 10 year period, according to a study of more than 173,000 AMI patients in the Swedish RIKS-HIA register.

The findings were presented at the ESC Congress today by Ms Stina Jakobsson from Sweden. They reveal that reperfusion therapy and secondary prevention drugs produced the decline and brought stroke risk after AMI closer to that of non-diabetics.

Ms Jakobsson said: "Ischemic stroke following an acute myocardial infarction is a fairly uncommon but devastating event with high mortality. It has long been recognized that patients with diabetes mellitus are at a particularly high risk of complications after an AMI but until now, the risk of ischemic stroke after an AMI in patients with diabetes has been uncertain."

The study included 173,233 patients registered as having their first AMI during 1998-2008 in the Swedish Register of Information and Knowledge about Swedish Heart Intensive Care Admissions (RIKS-HIA). RIKS-HIA contains data on all patients admitted to Sweden's 74 coronary care units.

During 1998-2008, of the 33,503 (19%) patients in the register who had a previous diagnosis of diabetes, 5.5% had an ischemic stroke within one year after the AMI. This compared to a stroke rate of 3.5% in patients on the register who did not have diabetes and 0.3% in the Swedish general population (who were not on the register and had no history of AMI). Ms Jakobsson said: "We believe that an important mechanism behind the increased risk for ischemic stroke after an AMI, especially in diabetic patients, may be increased inflammation and platelet reactivity seen with an AMI."

Ischemic stroke rate decreased over time. During 1998-2000, 7.1% of diabetic patients had an ischemic stroke within one year after their first AMI, compared to 4.7% during 2007-2008. A smaller decline was observed in non-diabetic patients, from 4.2% in 1998-2000 to 3.7% in 2007-2008.

In the diabetics, prior reperfusion therapy with coronary angioplasty, coronary angioplasty during the AMI hospital stay, and prescription of the secondary preventive medications acetylsalicylic acid, P2Y12-inhibitors and statins when leaving hospital were independently associated with the reduced stroke risk over time.

Higher age, prior ischemic stroke, a specific type of myocardial infarction (ST-elevation MI) and atrial fibrillation during the hospitalization were found to be risk factors for an ischemic stroke within one year after AMI in patients with diabetes.

The study found that despite the greater improvements in stroke risk seen in diabetic patients, they were treated to a lesser extent than non-diabetic patients with reperfusion therapies during their initial hospital stay. They also left hospital with less standard medication for secondary prevention after an AMI. During the entire study period, the prescription of secondary preventive medication increased in both diabetic and non-diabetic patients.

Ms Jakobsson said: "The decreased ischemic stroke rate in both patient groups over time may be explained by a reduction in established risk factors for stroke and increased use of secondary preventive treatments after AMI. The larger reduction in stroke risk seen in diabetic patients may indicate that they gained more from the greater use of secondary preventive medication. But secondary preventive treatments are still underutilized in diabetic patients and there is room for increased use."


Story Source:

The above story is based on materials provided by European Society of Cardiology. Note: Materials may be edited for content and length.


Cite This Page:

European Society of Cardiology. "Diabetic stroke risk after AMI drops in 10 year period." ScienceDaily. ScienceDaily, 31 August 2013. <www.sciencedaily.com/releases/2013/08/130831110919.htm>.
European Society of Cardiology. (2013, August 31). Diabetic stroke risk after AMI drops in 10 year period. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2013/08/130831110919.htm
European Society of Cardiology. "Diabetic stroke risk after AMI drops in 10 year period." ScienceDaily. www.sciencedaily.com/releases/2013/08/130831110919.htm (accessed September 22, 2014).

Share This



More Health & Medicine News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Liberia Pleads for Help to Fight Ebola

Liberia Pleads for Help to Fight Ebola

AP (Sep. 22, 2014) Liberia's finance minister is urging the international community to quickly follow through on pledges of cash to battle Ebola. Bodies are piling up in the capital Monrovia as the nation awaits more help. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Global Ebola Aid Increasing But Critics Say It's Late

Global Ebola Aid Increasing But Critics Say It's Late

Newsy (Sep. 21, 2014) More than 100 tons of medical supplies were sent to West Africa on Saturday, but aid workers say the global response is still sluggish. Video provided by Newsy
Powered by NewsLook.com
Sierra Leone in Lockdown to Control Ebola

Sierra Leone in Lockdown to Control Ebola

AP (Sep. 21, 2014) Sierra Leone residents remained in lockdown on Saturday as part of a massive effort to confine millions of people to their homes in a bid to stem the biggest Ebola outbreak in history. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Sierra Leone's Nationwide Ebola Curfew Underway

Sierra Leone's Nationwide Ebola Curfew Underway

Newsy (Sep. 20, 2014) Sierra Leone is locked down as aid workers and volunteers look for new cases of Ebola. Video provided by Newsy
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:
from the past week

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