Abstract:
BACKGROUND:Umbilical cord blood transplantation (UCBT) is increasingly used and produces similar results to matched unrelated donor transplantation. METHODS:We performed a retrospective single-center analysis of 50 umbilical cord blood transplantations UCBTs performed from 2001 to 2010, including 37 single and 13 double umbilical cord blood transplantations UCBTs. RESULTS:The rate of engraftment of neutrophils was 88% at a median time of 29 days (range, 3-79). Complete donor chimerism (DC) within the CD19, CD3, and CD33 cell lineages was seen in 74%, 72%, and 76% of the patients, respectively. DC was associated with acute graft-versus-host disease (GVHD) grades II to IV for the CD3 cell lineage (P=0.01) and, in multivariate analysis, with total body irradiation for all lineages (P<0.01). Overall survival (OS) at 1 and 5 years was 55% and 43%. Nonmalignant diseases were associated with better 5-year OS (72%) than malignancies (28%; P=0.026). In multivariate analysis, a negative correlation was seen between OS and age (hazard ratio [HR], 1.04; 95% confidence interval [95% CI], 1.02-1.06; P<0.001), acute GVHD grades III and IV (HR, 3.43; 95% CI, 1.95-6.02; P<0.001), and mesenchymal stem cell treatment (HR, 2.66; 95% CI, 1.11-6.35; P=0.027). Transplant-related mortality at 100 days and 1 year was 16% and 30%. The incidence of acute GVHD grades II to IV was 34%. Acute GVHD grades III and IV was associated with ABO incompatibility (HR, 2.61; P=0.05) and myeloablative conditioning (HR, 4.17; P=0.047). CONCLUSIONS:The outcome in patients with nonmalignant diseases was acceptable, but transplant-related mortality in the whole group remains high. A significantly higher rate of DC was associated with total body irradiation-based conditioning and with acute GVHD grades II and IV.
journal_name
Transplantationjournal_title
Transplantationauthors
Berglund S,Le Blanc K,Remberger M,Gertow J,Uzunel M,Svenberg P,Winiarski J,Ljungman P,Ringdén O,Uhlin M,Mattsson Jdoi
10.1097/TP.0b013e31826c39b2subject
Has Abstractpub_date
2012-11-27 00:00:00pages
1066-74issue
10eissn
0041-1337issn
1534-6080journal_volume
94pub_type
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