Higher QT Interval After Energy Drink Consumption Vs. Caffeine

Share this content:
Higher QT Interval After Energy Drink Consumption Vs. Caffeine
Higher QT Interval After Energy Drink Consumption Vs. Caffeine

THURSDAY, April 27, 2017 (HealthDay News) -- Consumption of energy drinks is associated with significantly higher corrected QT interval and systolic blood pressure (BP) than consumption of caffeine alone, according to a study published online April 26 in the Journal of the American Heart Association.

Emily A. Fletcher, Pharm.D., from the David Grant Medical Center at Travis Air Force Base in California, and colleagues conducted a randomized controlled trial in 18 young, healthy volunteers. Participants consumed 946 mL of energy drink or caffeinated control drink, both of which contained 320 mg of caffeine. At baseline and one, two, four, six, and 24 hours after study drink consumption, electrocardiogram, peripheral BP, and central BP measures were obtained.

The researchers found that at two hours, the change in corrected QT interval from baseline was significantly higher in the energy drink arm than the caffeine arm (0.44±18.4 ms versus −10.4±14.8 ms, respectively). At other time points the QTc changes were not different. The systolic BP was initially raised in a similar fashion in the energy drink and caffeine arms, but at six hours systolic BP was significantly higher in the energy drink versus the caffeine arm (4.72±4.67 versus 0.83±6.09 mmHg, respectively).

"Larger clinical trials validating these findings and evaluation of noncaffeine ingredients within energy drinks are warranted," the authors write.

Abstract/Full Text

Share this content:

is free, fast, and customized just for you!

Already a member?

Sign In Now »


Sign up for myCME e-newsletters


Drug Lookup

Browse drugs by: BrandGenericDisease

More in Home

FDA Approves Actemra to Treat Giant Cell Arteritis

FDA Approves Actemra to Treat Giant Cell Arteritis

New indication provides the first FDA-approved therapy specific to this type of vasculitis

Trends in Teen Binge Drinking Still Raise Concerns

Trends in Teen Binge Drinking Still Raise Concerns

Even though frequent binge drinking among adolescents has dropped in past 25 years

ATS: First Abx Rx Doesn't Work for 25 of Pneumonia Cases

ATS: First Abx Rx Doesn't Work for ~25% ...

One in four adult patients do not respond to initial prescription of antibiotic treatment

is free, fast, and customized just for you!

Already a member?

Sign In Now »