RT Journal Article T1 Predictive Value of Immune Cell Functional Assay for Non-Cytomegalovirus Infection in Lung Transplant Recipients: A Multicenter Prospective Observational Study A1 Monforte, Victor A1 Ussetti, Piedad A1 Castejon, Raquel A1 Sintes, Helena A1 Luz Perez, Virginia A1 Laporta, Rosalia A1 Sole, Amparo A1 Manuel Cifrian, Jose A1 Marcos, Pedro J. A1 Redel, Javier A1 Los Arcos, Ibai A1 Berastegui, Cristina A1 Alonso, Rodrigo A1 Rosado, Silvia A1 Escriva, Juan A1 Iturbe, David A1 Pablo Ovalle, Juan A1 Manuel Vaquero, Jose A1 Lopez-Meseguer, Manuel A1 Mendoza, Alberto A1 Gomez-Olles, Susana K1 Immune cell assay K1 Immunosuppression K1 Infection K1 Lung transplant K1 Immunknow K1 Adenosine-triphosphate production K1 Recurrent hepatitis-c K1 Cylex immuknow assay K1 Working formulation K1 Allograft-rejection K1 Standardization K1 Experience K1 Risk AB Introduction: Immune cell functional assay (ImmuKnow (R)) is a non-invasive method that measures the state of cellular immunity in immunosuppressed patients. We studied the prognostic value of the assay for predicting non-cytomegalovirus (CMV) infections in lung transplant recipients.Methods: A multicenter prospective observational study of 92 patients followed up from 6 to 12 months after transplantation was performed. Immune cell functional assay was carried out at 6, 8, 10, and 12 months.Results: Twenty-three patients (25%) developed 29 non-CMV infections between 6 and 12 months post-transplant. At 6 months, the immune response was moderate (ATP 225-525 ng/mL) in 14 (15.2%) patients and low (ATP = 525 ng/mL). Only 1 of 14 (7.1%) patients with a moderate response developed non-CMV infection in the following 6 months compared with 22 of 78 (28.2%) patients with low response, indicating sensitivity of 95.7%, specificity of 18.8%, positive predictive value (PPV) of 28.2%, and negative predictive value (NPV) of 92.9% (AUC 0.64; p = 0.043). Similar acute rejection rates were recorded in patients with mean ATP >= 225 vs. = 225 vs. PB Elsevier espana slu SN 0300-2896 YR 2021 FD 2021-11-01 LK https://hdl.handle.net/10668/25753 UL https://hdl.handle.net/10668/25753 LA en DS RISalud RD Apr 12, 2025