Use of beta-blocker helps achieve target heart rate level among patients in septic shock

Andrea Morelli, M.D., of the University of Rome, Italy, and colleagues conducted a study to investigate the effect of the short-acting beta-blocker esmolol on the heart rate of patients with severe septic shock and high risk of death.

Septic shock is associated with adverse effects on cardiac function. Beta-blocker therapy controls and may improve cardiovascular performance, but concerns remain that this therapy may lead to cardiovascular decompensation (inability of the heart to maintain adequate circulation), according to background information in the article.

The randomized phase 2 study was conducted in a university hospital intensive care unit (ICU) between November 2010 and July 2012. It recruited patients in with a heart rate of 95/min or higher requiring high-dose norepinephrine to maintain an average arterial pressure of 65 mm Hg or higher. The researchers randomly assigned 77 patients to receive a continuous infusion of esmolol to maintain heart rate between 80 beats per minute (BPM) and 94 BPM for the duration of their ICU stay and 77 patients to standard treatment. The primary outcome was a reduction in heart rate below the predefined threshold of 95 BPM and maintain a heart rate between 80 and 94 BPM over a 96-hour period.

The researchers found that the target range for heart rate was achieved in all in the esmolol group, which was significantly lower throughout the intervention period than what was achieved in the control group. In addition, the esmolol group had a 28-day mortality rate of 49.4 percent vs. 80.5 percent in the . Overall survival was higher in the esmolol group.

There was no clinically relevant differences between groups in other investigated cardiopulmonary variables nor in rescue therapy requirements.

"Further investigation of the effects of esmolol on clinical outcomes is warranted," the authors write.

More information: doi:10.l001/jama.2013.278477

Related Stories

Recommended for you

Cognitive impairment predicts worse outcome in heart failure

date May 24, 2015

Cognitive impairment predicts worse outcome in elderly heart failure patients, reveals research presented today at Heart Failure 2015 by Hiroshi Saito, a physiotherapist at Kameda Medical Centre in Kamogawa, Japan. Patients ...

1950s drug is future heart treatment

date May 22, 2015

Oxford University researchers have found a promising future treatment for heart disease, going back to a drug first developed in 1950.

Time is muscle in acute heart failure

date May 21, 2015

Urgent diagnosis and treatment in acute heart failure has been emphasised for the first time in joint recommendations published today in European Heart Journal.

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.