According to study results, the use of e-cigarettes in smokers who quit smoking altogether or alternate between the two has shown a significant decrease in exposure to toxic substances contained in cigarette smoke.
«We have found that using e-cigarettes over a 4 week period significantly reduces exposure to carbon monoxide and acrolein " said Hayden McRobbie, MB, PhD, a professor of public health interventions at the Wolfson Institute and preventive medicine at Queen Mary University in London in a press release. " The reduction was greatest in those who switched to e-cigarettes with total quitting, but even those who combined the two over a 4-week period reduced their carbon monoxide and acrolein exposures. »
McRobbie and his colleagues analyzed 33 adult smokers who wanted to quit smoking in order to assess exposure to carbon monoxide, nicotine and acrolein before and after 4 weeks of e-cigarette use.
Participants attended a medical check-up one week before the quit start date to provide baseline measurements and written consent to quit smoking. The participants were then able to smoke as much as they wanted until the scheduled date of total quit. At that time, participants received their e-cigarettes and instructions directing them to use it whenever they felt like it.
Sixteen participants totally stopped smoking and only used e-cigarettes, while the remaining participants combined both tobacco and e-cigarettes.
Exposure to carbon monoxide then decreased 80% (from 15 ppm to 3 ppm) for participants who only used the e-cigarette for 4 weeks (P <.001). Carbon monoxide also decreased 
participants who combined the two (from 23 ppm to 11 ppm is 52%) (P = 0,001.).
As for acrolein levels at 4 weeks it decreased to 1280 ng / mg creatinine (79% decrease) for those who have only used the e-cigarette and 1 474 ng / mg creatinine (60% decrease) for the smokers.
According to McRobbieAlthough the results are encouraging and favorable for the e-cigarette, more research is still needed. " These results suggest that e-cigarettes can reduce damage compared to tobacco, even for vapors, but longer-term studies are needed to confirm this."
It should be noted : McRobbie being Clinical Director at "The Dragon Institute". he reported receiving honoraria from " Johnson & Johnson As well as from Pfizer.
Source : healio.com
