A 17-year-old girl ended up losing part of her lung after she vaped the equivalent of 400 cigarettes a week.
Kyla Blight collapsed and 'turned blue' while she was at a sleepover at a friend's house on 11 May, having thought that her vaping habit was mostly 'harmless'.
However, excessive vaping created and burst a small air blister on her lung, known as a pulmonary bleb.
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She almost went into cardiac arrest as a result, was rushed to hospital and spent five-and-a-half hours in surgery to remove part of her lung.
Kyla then had to stay in hospital for another two weeks before she was allowed to go home.
The 17-year-old has since said she's sworn off the vapes after her serious health scare, saying she 'wouldn't go near them' now and she's been 'scared out of them' by being hospitalised for two weeks.
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She said: "When I was 15 it started becoming a popular thing. All my friends were doing it. I just thought it would be harmless and that I would be fine.
"Everyday I would use the 4,000-puff ones and I would go through them in about a week.
"I honestly thought they were harmless and wouldn’t do anything to anyone, even though I had seen so many things about it. I just feel like everyone has that same view.
"But now I won’t touch them. I wouldn’t go near them. The situation has really scared me out of them.
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"I was terrified. We went in there thinking we were only going to be in there for a few hours but ended up being there for two weeks having surgeries and all this."
Her dad Mark said it was 'terrifying' and 'horrible to watch' his daughter suffer through a life-threatening experience.
"They said she went blue. They thought she’d gone," he said of what he'd been told about Kyla's condition.
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Even before this close shave, her vaping had put her in hospital before as last November she'd had a suspected heart attack, though an X-ray revealed it was a hole in her lung which was the result of a bleb forming.
She'd also been in hospital in February this year where she was told the hole had healed, only for her to have a life-threatening shock.
Her dad got the call at 4am that his daughter had turned blue, and said that because of the hole Kyla's lung had collapsed.
Mark said the surgeon told him he'd 'done a lot of operations like this'.