Bronchoscopic thermal vapor ablation using Uptake Medical Technology Inc.'s InterVapor System is indicated for treatment of patients with heterogeneous upper lobe emphysema. This study is a retrospective and prospective, observational, multi-center, post-market registry of patients prescribed InterVapor. The primary objective of the Registry is to describe the long-term impact of InterVapor treatment on patient quality of life (QOL) in a real-world setting. After InterVapor treatment, patients will be followed for 5 years as per the standard of care and safety and efficacy data (quality of life, pulmonary function, exercise capacity) collected as part of the registry.