Factors affecting microbial contamination rate of cord blood collected for transplantation.

Background: Collection and processing of cord blood (CB) is associated with significant risk of microbial contamination and hence relevant standards mandate microbial screening of the final product. This study aimed to determine the contamination rate and associated risk factors during 14 years of banking at the Sydney Cord Blood Bank.

Study Design And Methods: CB was collected and processed using a closed system and tested for contamination using blood culture bottles (BacT/ALERT, bioMérieux) incubated for a minimum of 5 days.

Failure to lactate: a possible late effect of cranial radiation.

We conducted a retrospective review of the lactation experience of female survivors who received 24 Gy cranial radiotherapy as CNS prophylaxis for acute lymphoblastic leukemia in childhood prior to 1982 and who attend the Long-Term Follow-Up Clinic at Sydney Children's Hospital, Randwick, Australia. Median time since diagnosis is 28 years (range 25-37 years). Twelve have produced offspring.

No longer a biological waste product: umbilical cord blood.

Haematopoietic stem cell transplantation is an accepted curative therapy for many cancers and inherited non-malignant diseases, including bone marrow failure syndromes, haemoglobinopathies, and inborn errors of metabolism. Stem cells can be used from the bone marrow or blood of matched siblings or appropriately matched unrelated volunteers, but many patients do not have a suitably matched donor. Umbilical cord blood (UCB) has been successfully used as an alternative stem cell source.

Factors associated with outcomes of unrelated cord blood transplant: guidelines for donor choice.

Objective: Optimizing cord blood donor selection based mainly on cell dose and human leukocyte antigen (HLA) disparities may further improve results of unrelated cord blood transplants (UCBT).

Materials And Results: We analyzed 550 UCBTs for hematologic malignancies reported to the Eurocord Registry. Main outcomes and prognostic factors were analyzed in univariable and multivariable analyses incorporating center and period effects and using death and relapse as competitive risks for nonfatal endpoints.

Osteochondroma after total body irradiation: an age-related complication.

Background: The discovery of a mass lesion in a long-term cancer survivor causes significant anxiety. The causes of such a mass include benign osteochondroma, which has been reported following focal irradiation and total body irradiation (TBI).

Procedure: To establish the incidence of osteochondromas following TBI, the medical records of all children treated at the Sydney Children's Hospital who received TBI as part of the conditioning prior to bone-marrow transplantation between 1978 and 1997 were reviewed.

Unrelated cord blood transplantation for childhood acute myeloid leukemia: a Eurocord Group analysis.

Results of unrelated cord blood transplantation (UCBT) in childhood acute myeloid leukemia (AML) have not been previously reported. We analyzed 95 children receiving UCB transplants for AML (20 in first complete remission [CR1], 47 in CR2, and 28 in more advanced stage). Poor prognosis cytogenetic abnormalities were identified in 29 cases.

Results of consecutive trials for children newly diagnosed with acute myeloid leukemia from the Australian and New Zealand Children's Cancer Study Group.

Despite improvements in the treatment of acute myeloid leukemia (AML), approximately 50% of children die of the disease. Clinical trials in adult patients with AML indicate that idarubicin may have superior efficacy when compared to daunorubicin in the remission-induction phases of chemotherapy. We conducted consecutive clinical trials in children with newly diagnosed AML in which daunorubicin (group 1, n = 102) or idarubicin (group 2, n = 160) was used during the remission-induction (RI) and the early consolidation phases of chemotherapy.