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September, 2018:

Doctors want total ban on e-cigarettes

Several medical groups came together on Thursday to call for a total ban on electronic cigarettes, warning their sale would lead to an “epidemic” of teen vaping.

The groups – including the medical and dental associations – called on the government to end sales of e-cigarettes instead of merely regulating them.

They cited data from a US study that suggested use of e-cigarettes among high-school students had soared in recent years.

Dr David Lam, vice-president of the Medical Association, said cigarettes are evil products that contain nothing that is good for human health.

The groups acknowledged the argument against a total ban, as there is no such restriction on traditional cigarettes.
They said cigarettes have been around for a long time and if they were a new product being introduced, Hong Kong wouldn’t allow their import.

Lam said it had taken decades to cut down cigarette addiction, but modern day teens are not attracted to traditional tobacco products like earlier generations were. “Why are you allowing them to be addicted to these kind of things?” he asked, referring to e-cigarettes.

The joint call for a ban was issued by the Federation of Medical Societies of Hong Kong, the Hong Kong Dental Association, the Hong Kong Medical Association, and the Hong Kong Council on Smoking and Health.

At a separate event, the Hong Kong College of Cardiology said a survey it had carried out found that vaping is not useful in helping smokers to quit.

The college’s president, Dr Lau Yuk-kong, said their study also found that people are still unaware that those who smoke outside and then return indoors can still pose a threat to those near them through third-hand smoking – the residue that hangs onto their clothes.

‘Heat-not-burn’ cigarettes still damage lungs

(Reuters Health) – A new type of “heat-not-burn” cigarette may lead to just as much lung damage as traditional cigarettes, a recent study suggests.

So-called “heat-not-burn” devices are designed to heat disposable tobacco sticks and give users the taste of tobacco without the smoke or ash.

For the study, researchers analyzed data submitted by Philip Morris International to the U.S. Food and Drug Administration when the company was trying to win regulatory approval to market its I-Quit-Ordinary Smoking (IQOS) product as a safer alternative to traditional cigarettes.

The FDA has yet to weigh in on whether Philip Morris can sell its IQOS device as a lower-risk cigarette alternative. But an expert scientific panel convened by the FDA recommended against such a move earlier this year, and the new study offers fresh evidence of health risks associated with IQOS.

When smokers switched from traditional cigarettes to “heat-not-burn” devices, researchers didn’t find any evidence of improvements in lung function or reductions in inflammation that can signal tobacco-related blood vessel damage.

“Even if a patient could switch completely from regular cigarettes to heat-not-burn products, Philip Morris International’s own data shows that there will continue to be significant health risks associated with these products,” said lead study author Dr. Farzad Moazed of the University of California, San Francisco.

“Although quitting smoking is challenging, there are many other options for smoking cessation that are more effective and safer than the use of these products,” Moazed said by email.

There is evidence that IQOS may reduce exposure to certain harmful chemicals, Moazed said, a point Philip Morris emphasized in a statement released after the FDA advisory panel decision. (

Philip Morris also disputed the study authors’ conclusions.

“The totality of evidence available on IQOS supports that it is likely to present less risk of harm compared to continued smoking,” Philip Morris said in an emailed statement to Reuters Health. “This includes a significant reduction in inflammatory response and favorable changes in lung function.” (

“Heated tobacco products, also known as heat-not-burn products, generate a nicotine aerosol by heating sticks made up of tobacco and other chemicals without lighting them on fire,” Moazed said. “While this reduces the amount of some of the harmful chemicals associated with smoking, it increases the levels of other chemicals, and the evidence to date shows that these products continue to result in harm.”

While there’s limited data on the safety of IQOS relative to traditional cigarettes, and no long-term studies, the available evidence suggests that the devices are just as harmful to the lungs and immune system as traditional cigarettes, Moazed’s team concludes in Tobacco Control.

It’s also unclear from research to date whether IQOS might help smokers quit, a factor that might influence how scientists think about the safety of these devices and other tobacco products sold as alternatives to traditional cigarettes.

The human studies Philip Morris submitted to the FDA excluded people who were “dual users” of both traditional cigarettes and IQOS devices, the study authors note.

Any safety advantage relative to traditional cigarettes might be diminished if people continue to smoke traditional cigarettes once they start using IQOS devices, said Bonnie Halpern-Felsher, a tobacco prevention researcher at Stanford University School of Medicine in Palo Alto, California, who wasn’t involved in the study.

“We have no studies outside of Philip Morris on whether these IQOS will actually help people quit or on their relative safety,” Halpern-Felsher added. “People are unlikely to understand what “switching completely” means and that therefore they are likely to be misled,” by any safety claims that are contingent on smoking cessation.

SOURCE: Tobacco Control, online August 27, 2018.

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