Electronic Cigarette-derived Oxidants and Cardiopulmonary Effects

This is a pilot study on the impact of switching from cigarettes to Electronic Cigarettes (EC) on disease-related clinical symptoms and biomarkers of harm in smokers with preexisting Chronic Obstructive Pulmonary Disease (COPD). The researchers hypothesize that the smokers who switch to EC completely or significantly will experience reduced COPD symptoms, risks of exacerbations, and decreased levels of oxidative stress and inflammation.