Probable risk factors for BOS | Potential risk factors for BOS |
Acute rejection | CMV infection (without pneumonitis) |
Lymphocytic | Community respiratory virus infection |
bronchitis/bronchiolitis | Donor antigen-specific reactivity |
CMV pneumonitis | Medical noncompliance |
Anti‐HLA pretransplantation | Gastro-oesophageal reglux |
Older donor age combined with longer graft ischaemic time |
CMV: cytomegalovirus
HLA: human leukocyte antigen