Premium
ABO‐mismatched marrow processing for transplantation: results of 114 procedures and analysis of immediate adverse events and hematopoietic recovery
Author(s) -
Larghero Jerome,
Rea Delphine,
Esperou Helene,
Biscay Nicole,
Maurer MarieNoelle,
Lacassagne MarieNoelle,
Ternaux Brigitte,
Traineau Richard,
Yakouben Karima,
Dosquet Christine,
Socié Gerard,
Gluckman Eliane,
Benbunan Marc,
Marolleau JeanPierre
Publication year - 2006
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/j.1537-2995.2006.00735.x
Subject(s) - abo blood group system , medicine , haematopoiesis , adverse effect , hematopoietic stem cell transplantation , transplantation , bone transplantation , abo incompatibility , hematopoietic cell , immunology , surgery , stem cell , biology , genetics
BACKGROUND: Red cell (RBC) depletion is needed to bypass ABO mismatch in allogeneic bone marrow transplantation (BMT). Technical and clinical data obtained after bone marrow (BM) processing with a continuous‐flow cell separator (Cobe Spectra, Gambro BCT) are reported. STUDY DESIGN AND METHODS: RBC depletion and recovery of nucleated cells, CD3+ cells, CD34+ cells, and colony‐forming unit–granulocyte‐macrophage were calculated. Bacteriologic contaminations, side effects of graft infusion, and hematopoietic recovery were analyzed. RESULTS: A total of 114 BM samples were processed. The mean volume collected was 1099 mL (range, 390‐2450 mL). Initial and residual mean RBCs volumes were 309.9 and 4.0 mL corresponding to a depletion of 98.6 ± 0.78 percent. Before processing, the mean numbers of nucleated cells, granulocytes, CD3+ cells, CD34+ cells, and CFU‐GM were 20.28 × 10 9 , 12.79 × 10 9 , 1.96 × 10 9 , 356.7 × 10 6 , and 195.6 × 10 5 , respectively. The mean corresponding recoveries after processing were 33.66, 48.98, 82.02, 82.2, and 93.9 percent. Limited side effects were observed in 14 patients without correlation with residual RBCs volume. All but two patients engrafted. CONCLUSION: BM processing with the Cobe Spectra cell separator provides high rates of RBC depletion without significant side effects after BMT.