Pulmonary and Cardiac Effects of E-Cigarette Use in Pulmonary Patients Who Smoke Cigarettes

The purpose of this study is to compare the effects of e-cigarettes and continued smoking on pulmonary and cardiac outcomes in a population with established pulmonary disease.

Inclusion Criteria:Men and women 40 years of age or olderCurrent, every day smoker (5 or more cigarettes per day for one year or longer) confirmed with intake CO of 8ppm or greaterEstablished pulmonary disease (chronic obstructive pulmonary disease [COPD], chronic bronchitis, emphysema, or asthma-COPD overlap syndrome) confirmed by physician diagnosis and/or current prescription of medication for treatment (i.e., LABA, LAMA, +/- ICS, or combination)Lives and plans to remain in the greater Burlington, VT area for the next monthNo intention to quit smoking within the next monthSpeaks EnglishExclusion Criteria:Patients who are medically unstable (unstable symptoms, changes in medications or hospitalizations within last 3 months)Inability to conduct in-home measurements.