José Hureaux (JH): I would like to present the case of a 43-year-old patient who presented with bronchial syndrome associated with deterioration of pulmonary function tests (PFTs) after starting to use an electronic cigarette. He had a history of primary lung adenocarcinoma with a documented isolated brain metastasis (stage pT3N0M1b) treated by stereotactic brain radiotherapy, right upper lobectomy and chemotherapy. The patient had been under surveillance for 7 months. This patient, an active smoker (45 pack-years) undergoing smoking cessation with the assistance of his general practitioner based on a reduction strategy accompanied by nicotine replacement therapy (21 mg patch), continued to smoke about 20 cigarettes a day. In order to completely stop smoking, he decided to try an electronic cigarette on the advice of a friend.

Thierry Urban (TU): Smoking cessation is useful in all patients operated for lung cancer, and must be encouraged. The e-cigarette provides nicotine via the inhaled route from which it is rapidly absorbed by a modality corresponding to the usual actions of smoking, while reducing the exposure of individuals to carcinogenic substances present in tobacco smoke. However, the real place of e-cigarettes in the therapeutic aid to smoking cessation is unknown.

JH: He purchased an e-cigarette (‘La dynamique’ by CIGARTEX) and two …