Breath Volatile Organic Compounds Patterns of Lung Transplant Patients With Chronic Lung Allograft Dysfunction

It's the aim of this study to clarify, whether the non-invasive assessment of breath can serve as a novel clinical tool to assist in the diagnosis of CLAD. If different stages of BOS can be discriminated by the level of certain VOCs than there would also be a potential to actually predict the development at an early stage and would enable an earlier intervention.

Inclusion Criteria:

• Outpatient bilateral lung transplant recipients including combined transplants

Exclusion Criteria:

• Active Smoking Oxygen therapy Infection with multi or pan-resistant bacteria