Infectious risks in patients treated with extracorporeal photopheresis for graft-versus-host disease: A retrospective cohort study.

Background: Infections are common with significant mortality and morbidity in patients with graft-versus-host disease (GvHD). Extracorporeal photopheresis (ECP) is an advantageous treatment option for patients with GvHD because it is not immunosuppressive. The objective of this study was to assess the rate of infections and to determine risk factors in patients with GvHD.