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Inline extracorporeal photopheresis: evaluation of cell collection efficiency
Author(s) -
Piccirillo Nicola,
Putzulu Rossana,
Massini Giuseppina,
Di Giovanni Alessia,
Chiusolo Patrizia,
Sica Simona,
Zini Gina
Publication year - 2019
Publication title -
transfusion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.045
H-Index - 132
eISSN - 1537-2995
pISSN - 0041-1132
DOI - 10.1111/trf.15570
Subject(s) - extracorporeal photopheresis , photopheresis , medicine , peripheral blood mononuclear cell , hematopoietic stem cell transplantation , transplantation , surgery , immunology , graft versus host disease , chemistry , in vitro , lymphoma , biochemistry
BACKGROUND Extracorporeal photopheresis (ECP) therapy has proved to be an effective and safe treatment for graft‐versus‐host‐disease (GvHD), an important complication after hematopoietic stem cell transplantation. In 2016, we acquired Therakos CellEx, a dedicated inline ECP device to accomplish a significant increase in ECP activity. In literature, we found few data reporting CellEx performance evaluated in terms of collection efficiency to qualify the device. Hence, we decided to collect and analyze our data in order to build a reference in terms of expected results of the procedure. Here we report our data of ECP performed using CellEx in a 12‐month period focusing on collection efficiency assessment, as well as procedural and apheretic product characteristics. STUDY DESIGN AND METHODS We collected data of patients undergoing ECP from April 2018 to March 2019 using CellEx in order to evaluate collection efficiency. RESULTS Between April 2018 and March 2019 we treated 28 adult patients affected by GvHD performing 319 ECP using CellEx. CellEx mononuclear cell product was characterized by high mononuclear cell percentage and low percentage of granulocytes, resulting particularly suitable for ECP treatments. Median collection efficiency for total nucleated cells and for mononuclear cells was 31.2% and 62.3%, respectively. CONCLUSION Collection efficiency of CellEx was comparable to that usually obtained by cell separators designed for cell collection and was comparable to that of offline systems. Our results provide a detailed performance evaluation for inline ECP system users.