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Beta-blockers before surgery linked to lower risk of heart-related events

Date:
November 18, 2013
Source:
The JAMA Network Journals
Summary:
Giving beta-blocker medication to patients with heart disease undergoing noncardiac surgery appears to be associated with a lower risk of death and major adverse cardiovascular events 30 days after surgery in patients with heart failure or a recent myocardial infarction (MI, heart attack), according to a study.

Giving beta-blocker medication to patients with heart disease undergoing noncardiac surgery appears to be associated with a lower risk of death and major adverse cardiovascular events (MACE) 30 days after surgery in patients with heart failure (HF) or a recent myocardial infarction (MI, heart attack), according to a study published by JAMA Internal Medicine, a JAMA Network publication.

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The effect of beta-blockers on the cardiac risk of noncardiac surgery has been controversial, with clinical guidelines encouraging their use amidst criticism that the evidence supporting the practice is weak, the authors write in the study background. These are beta-blockers given by physicians to patients at the time of surgery, not the beta-blockers patients are prescribed to take as a maintenance medication to treat chronic heart disease.

Charlotte Andersson, M.D., Ph.D., of the University Hospital of Copenhagen, Denmark, and colleagues identified patients in nationwide Danish registries who had ischemic heart disease (prior heart attack, angina) with or without HF and with or without a history of MI who underwent noncardiac surgery between October 2004 and December 2009. Researchers measured the association between beta-blocker use and MACE and all-cause mortality.

Of the 28,263 patients with heart disease who had surgery, 7,990 (28.3 percent) had HF and 20,273 (71.1 percent) did not. Beta (β)-blockers were used in 4,262 (53.3 percent) patients with HF and in 7,419 (36.6 percent) patients without HF.

The study findings suggest that among patients with HF, using beta-blockers was associated with a lower risk of MACE and mortality, but among patients without HF there was no association between beta-blocker use and MACE or mortality. Among patients without HF, beta-blocker use was associated with a lower risk of MACE and mortality among those who had a recent MI within the last two years.

"In conclusion, use of β-blockers among patients with ischemic heart disease and HF or recent MI undergoing noncardiac surgery is associated with a substantially decreased risk of major adverse cardiovascular events and all-cause mortality within 30 days after surgery," the authors conclude.


Story Source:

The above story is based on materials provided by The JAMA Network Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. Charlotte Andersson, Charlotte Mérie, Mads Jørgensen, Gunnar H. Gislason, Christian Torp-Pedersen, Charlotte Overgaard, Lars Køber, Per Føge Jensen, Mark A. Hlatky. Association of β-Blocker Therapy With Risks of Adverse Cardiovascular Events and Deaths in Patients With Ischemic Heart Disease Undergoing Noncardiac Surgery. JAMA Internal Medicine, 2013; DOI: 10.1001/jamainternmed.2013.11349

Cite This Page:

The JAMA Network Journals. "Beta-blockers before surgery linked to lower risk of heart-related events." ScienceDaily. ScienceDaily, 18 November 2013. <www.sciencedaily.com/releases/2013/11/131118162813.htm>.
The JAMA Network Journals. (2013, November 18). Beta-blockers before surgery linked to lower risk of heart-related events. ScienceDaily. Retrieved November 25, 2014 from www.sciencedaily.com/releases/2013/11/131118162813.htm
The JAMA Network Journals. "Beta-blockers before surgery linked to lower risk of heart-related events." ScienceDaily. www.sciencedaily.com/releases/2013/11/131118162813.htm (accessed November 25, 2014).

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