{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,15]],"date-time":"2025-08-15T00:04:55Z","timestamp":1755216295915,"version":"3.43.0"},"reference-count":37,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2025,7,14]],"date-time":"2025-07-14T00:00:00Z","timestamp":1752451200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Transfusion"],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Several studies show that extracorporeal photopheresis (ECP) might benefit chronic lung allograft dysfunction (CLAD). A standard ECP cycle consists of two consecutive procedures regardless of the technique employed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design and Methods<\/jats:title><jats:p>Evaluation of ECP cycle (from two to one procedure) modification due to pandemic restrictions in 25 patients with CLAD under chronic treatment by off\u2010line ECP in the 6\u2009months preceding cycle modification (one procedure processing 1.5 patients blood volumes [1.5 ECP]). Assessment of any significant change in lung function decline and the relationship with product characteristics compared to pre\u2010ECP cycle modification.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>ECP patients (23 obstructive and two mixed) were enrolled in 2020 during the COVID pandemic. Two hundred and thirty five ECP procedures followed the standard protocol and 121 the 1.5 ECP. There was little or no variation in lung function during the study period. The mean number of mononuclear cells (MNC) per kg administered over time was higher in the 1.5 ECP than in the standard ECP protocol (<jats:italic>p<\/jats:italic>\u2009=\u2009.014). No association was found between respiratory function and MNC infused. Persistent Forced Expiratory Volume in 1\u2009s decline &gt;10% was observed in two patients over the 6\u2009months preceding 1.5 ECP (due to CLAD progression) and in three patients after 1.5 ECP initiation (one for CLAD progression, two for bronchial colonization).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our study shows that respiratory function is maintained over time and is comparable between both ECP strategies in responders. The shift from two to one procedure per cycle may be reasonable in CLAD patients treated by off\u2010line ECP.<\/jats:p><\/jats:sec>","DOI":"10.1111\/trf.18318","type":"journal-article","created":{"date-parts":[[2025,7,14]],"date-time":"2025-07-14T11:33:48Z","timestamp":1752492828000},"page":"1490-1501","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["One versus two: How much does it matter? A single\u2010center retrospective study evaluating 1\u2010day extracorporeal photopheresis schedule for treating patients with chronic lung allograft rejection"],"prefix":"10.1111","volume":"65","author":[{"given":"Claudia","family":"Del Fante","sequence":"first","affiliation":[{"name":"Immunohaematology and Transfusion Service Fondazione IRCCS Policlinico San Matteo  Pavia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6933-3220","authenticated-orcid":false,"given":"Valentina","family":"Vertui","sequence":"additional","affiliation":[{"name":"Cardiothoracic and Vascular Department, Unit of Respiratory Diseases Fondazione IRCCS Policlinico San Matteo  Pavia Italy"},{"name":"Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna  Bologna Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Catherine","family":"Klersy","sequence":"additional","affiliation":[{"name":"Biostatistics and Clinical Trial Centre Fondazione IRCCS Policlinico San Matteo  Pavia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristina","family":"Mortellaro","sequence":"additional","affiliation":[{"name":"Immunohaematology and Transfusion Service Fondazione IRCCS Policlinico San Matteo  Pavia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Domenica Federica","family":"Briganti","sequence":"additional","affiliation":[{"name":"Cardiothoracic and Vascular Department, Unit of Respiratory Diseases Fondazione IRCCS Policlinico San Matteo  Pavia Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Letizia Corinna","family":"Morlacchi","sequence":"additional","affiliation":[{"name":"Internal Medicine Department, Respiratory Unit and Cystic Fibrosis Adult Centre Ca' Granda Foundation IRCCS Ospedale Maggiore Policlinico  Milan Italy"},{"name":"Department of Pathophysiology and Transplantation Universit\u00e0 degli Studi di Milano  Milan 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