Worldwide practices in pulmonary function test reporting after lung transplantation

BACKGROUND: Spirometry interpretation after lung transplantation (LTx) is complex, requiring a clear understanding of reference values and normal thresholds globally. Abnormal values are typically based on general population reference standards. METHODS: In April 2025, a 10-question online survey was conducted among International Society of Heart and Lung Transplantation-members to determine the reference values and normal thresholds used worldwide for post-transplant spirometry interpretation. RESULTS: Responses from 58 centers, covering 22,080 lung transplant recipients and representing

• Gottlieb, J.
• Lease, E.
• Hellemons, M.
• Halloran, K.
• Martinu, T.