Featured Research

from universities, journals, and other organizations

Studies unclear on role of pre-surgery beta blockers

Date:
February 23, 2010
Source:
University of Michigan Health System
Summary:
It's not unusual for patients to suffer a cardiac event before surgery, and in theory, beta blockers will reduce the risk by relieving stress on the heart. But the one-size-fits-all approach can harm some patients, and heart specialists report that clinical studies have been unclear about who should get perioperative beta blockers and at what dosage.

In a commentary appearing in the Journal of the American Medical Association, heart specialists at the University of Michigan Health System make a plea for clarity on the best approach for prescribing beta blockers before surgery.

It's not unusual for patients to suffer a cardiac event during surgery, and in theory, beta blockers will reduce the risk by slowing the heartbeat, reducing blood vessel constriction, lowering demand of the heart muscle for oxygen, and generally relieving stress on the heart. However, a one-size-fits-all approach for prescribing beta blockers can harm patients at low-risk for having a heart attack.

Future clinical studies using clear models of dose, duration and implementation could provide answers for doctors about the role of pre-surgery beta blockers, according to the U-M commentary.

Because of important design, treatment and analytical variations, previous clinical trials are hard to interpret.

For instance, the 2001 DECREASE I study included high-risk patients with known coronary blockages who faced high risk surgery. Importantly, the beta blockers were given based on individual heart rate and blood pressure. In contrast, the recent 2008's POISE study included a mixed group of patients undergoing major non-cardiac surgery and took a long-acting drug.

Given these important differences, the studies have not offered clear answers about who should get beta blockers, what the starting dose should be and how doses should be adjusted for patients.

"The time has come for clarity across perioperative beta blocker studies," the U-M authors write.

Authors: Vineet Chopra, M.D., a hospitalist at U-M Health System and clinical assistant professor of internal medicine at the U-M Medical School and Kim A. Eagle, M.D., director of the U-M Cardiovascular Center and the Albion Walter Hewlett Professor of Internal Medicine.


Story Source:

The above story is based on materials provided by University of Michigan Health System. Note: Materials may be edited for content and length.


Journal Reference:

  1. Vineet Chopra; Kim A. Eagle. Perioperative β-Blockers for Cardiac Risk Reduction: Time for Clarity. JAMA, 2010; 303 (6): 551-552 [link]

Cite This Page:

University of Michigan Health System. "Studies unclear on role of pre-surgery beta blockers." ScienceDaily. ScienceDaily, 23 February 2010. <www.sciencedaily.com/releases/2010/02/100209183135.htm>.
University of Michigan Health System. (2010, February 23). Studies unclear on role of pre-surgery beta blockers. ScienceDaily. Retrieved August 1, 2014 from www.sciencedaily.com/releases/2010/02/100209183135.htm
University of Michigan Health System. "Studies unclear on role of pre-surgery beta blockers." ScienceDaily. www.sciencedaily.com/releases/2010/02/100209183135.htm (accessed August 1, 2014).

Share This




More Health & Medicine News

Friday, August 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Republicans Vote to Sue Obama Over Healthcare Law

House Republicans Vote to Sue Obama Over Healthcare Law

Reuters - US Online Video (July 31, 2014) The Republican-led House of Representatives votes to sue President Obama, accusing him of overstepping his executive authority in making changes to the Affordable Care Act. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Despite Health Questions, E-Cigs Are Beneficial: Study

Despite Health Questions, E-Cigs Are Beneficial: Study

Newsy (July 31, 2014) Citing 81 previous studies, new research out of London suggests the benefits of smoking e-cigarettes instead of regular ones outweighs the risks. Video provided by Newsy
Powered by NewsLook.com
Dangerous Bacteria Kills One in Florida

Dangerous Bacteria Kills One in Florida

AP (July 31, 2014) Sarasota County, Florida health officials have issued a warning against eating raw oysters and exposing open wounds to coastal and inland waters after a dangerous bacteria killed one person and made another sick. (July 31) Video provided by AP
Powered by NewsLook.com
Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
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