Widespread usage of electronic cigarettes (e-cigarettes) has driven the recent epidemic of e-cigarette, or vaping, product use associated lung injury (EVALI). Recent reports have described a heterogeneous range of pneumonitis-related sequelae from nonregulated tetrahydrocannabinol (THC) oil extract products used through various e-cigarette devices, piloting an ongoing federal investigation into the chemical constituents involved in such cases. However, to the best of our knowledge, no published

more »

... reports to date have examined the impact of EVALI on post-discharge pulmonary function tests (PFTs), and the role of pulmonary rehabilitation in improving short-term functional outcomes. We describe the clinical course of an adolescent male with EVALI due to the use of an off-label THC based vaping pod. After a prolonged intubation period in the intensive care unit he exhibited exertional dyspnea at the outset of his rehabilitation. His initial PFTs were notable for a mixed obstructive and restrictive lung pattern and mildly decreased diffusion capacity. The patient had a slow and gradual improvement in his PFTs during pulmonary rehabilitation, as well as a stepwise improvement in his activities of daily living and resolution of substance abuse related stressors with continued supportive counseling.