Bloomberg News (3/22, Ostrow) reports, "Energy drinks, which have been linked to deaths and hospitalizations, may boost blood pressure and lead to an erratic heartbeat," according to a study presented at an American Heart Association meeting. Investigators looked at data from seven studies.
HealthDay (3/22, Dotinga) reports that, among the studies, "a total of 93 participants drank energy drinks and had their "QT interval" measured, while another 132 underwent blood pressure measurement. In most of the studies, the participants - aged 18 to 45 - drank one to three cans of Red Bull."
Heartwire (3/22) reports that "subjects had increased systolic blood pressure and, more troubling, they also had, on average, a 10-msec prolongation in their QT interval." Study leader Dr Sachin Shah told Heartwire, "The blood-pressure finding falls in line with what we would suspect because of the caffeine content," but the finding on QT prolongation is "a bit of a wake-up call for us investigators to start studying it a bit more thoroughly, and it needs to happen sooner rather than later."
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