Sat, Feb 25, 2017 | updated 10:26 AM IST

Put down that energy drink as your heart is at risk

Updated: Aug 03, 2016 11:15 IST

Washington D.C, Aug 3 (ANI): Tempted to recharge by necking an energy drink? You should look elsewhere to get your "wings" as a case report has suggested that its high caffeine content can really make your heart go out of rhythm.

The case adds to previous reports of adverse cardiovascular events related to consuming energy drinks, including abnormal heart rhythms (arrhythmias).

The patient was a 28-year-old man seen in the emergency department after developing vomiting with blood. On examination, the only abnormality (other than obesity) was a very fast heart rate, about 130 beats per minute.

An electrocardiogram revealed an abnormal heart rhythm called atrial fibrillation: a common type of arrhythmia that can lead to serious complications if sustained. Further tests showed no other heart problems.

The patient said he routinely drank two Monster energy drinks per day, for a total caffeine content of 320 milligrams, along with two or three beers. No other common causes of his heart rhythm abnormality were apparent.

With medications, the atrial fibrillation resolved over 48 hours. Endoscopy showed a tear of the stomach and esophagus, probably caused by forceful vomiting. The patient was sent home in stable condition; at one year's follow-up, he had no further symptoms of arrhythmia.

Although several factors might have contributed to the patient's atrial fibrillation, lead author Maryam Sattari of University of Florida and colleagues wrote, "We believe that energy drink consumption played a key role." They point out the 160 mg caffeine content of a Monster energy drink is about four times higher than in a caffeinated soft drink.

A review of the medical research identified at least eight cases of cardiovascular events linked to energy drinks, such as Monster or Red Bull. The researchers discuss several mechanisms by which the high caffeine content of these products might lead to cardiovascular events. These include other ingredients, such as taurine, that might heighten the effects of caffeine; using energy drinks along with alcohol or illicit drugs; or high stress levels.

The study appears in Journal of Addiction Medicine. (ANI)

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