Vaping can temporarily harm blood flow: Study

The study published in the medical journal Radiology found that vaping just once can temporarily change a user's cardiovascular function.
2:05 | 08/21/19

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Transcript for Vaping can temporarily harm blood flow: Study
Now to a new study raising concerns about e-cigarettes finding they can temporarily harm normal blood flow in the body even with minimal use. ABC's gio Benitez is here with more. Gio, seems like there is a new story every morning about e-cigarettes. We just keep talking about this. Amy, robin, George, good morning to you. Researchers at the university of Pennsylvania say one use of an e-cigarette finding it reduces blood flow and that's without nicotine. Now they want to know what this means for long-term use. Vaping, we see e-cigarettes just about everywhere but this morning a new study says that just vaping once, even without nicotine or thc can temporarily change your cardiovascular function. I don't think there is a single study I reviewed that hasn't established that vaping poses a health risk. It's just a question of how much and whether it causes other harmful effects like we're describing here. Reporter: The study published in the journal radiology recrewed 31 healthy people in their 20s and 30s. They were all nonsmokers. They each took 16 three-second puffs of e-cigarette liquid without nicotine and what they found was that it temporarily damaged that person's blood vessels. This is the artery before and this is it after. After vaping the blood flowed slowly and in some cases it lasted for minutes. The researchers are calling for more review to see if this behavior repeated enough over time could have lasting effects down the road. It is so clear there is a short-term risk that if you extrapolate it only makes sense to think there is a long-term risk certainly decreased circulation to the heart muscle will result in heart damage. Reporter: And this morning, e-cigarettemaker Juul says the study called for vaping that is unreal list lickty high in volume with limited time between puffs and the president of the American vaping association says short-term changes don't necessarily say anything about long-term use but, listen, everyone agrees, more research is needed here. No question about that. Thank you very much.

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