[Electronic cigarette use in patients with asthma].

The proportion of patients whose asthma is poorly controlled due to their smoking remains high. Electronic cigarette (EC) is a new tool to help people stopping smoking, which substitutes a much less irritating aerosol to very toxic cigarette smoke, but it cannot be considered completely healthy. It represents a possible assistance for asthmatic smokers who wish using it to stop smoking. This article is a systematic review of the literature on the data concerning the relationships between EC use and asthma. There is a positive association between asthma symptoms, their severity and current use of CE in adolescents. The results are more contrasted in adult asthmatic CE users compared to cigarette smoking. CE should not be used by adolescents but can help, in exclusively use, adults with asthma stopping smoking.