Determining both myeloid and lymphoid chimerism after T-cell-depleted allogeneic bone marrow transplantation (BMT) could be helpful in the understanding of the biology of engraftment and could provide a rational method of assessing the ability of different conditioning regimens to promote engraftment. We prospectively investigated the role of different pretransplant conditioning regimens in 29 ...

The best treatment approach for children with B-precursor acute lymphoblastic leukemia (ALL) in second clinical remission (CR) after a marrow relapse is controversial. To address this question, we compared outcomes in 188 patients enrolled in chemotherapy trials and 186 HLA-matched sibling transplants, treated between 1991 and 1997. Groups were similar except that chemotherapy recipients were y...

PURPOSE Oral mucositis is a nearly universal and often severe complication following hematopoietic cell transplantation (HCT). The objective of this study was to evaluate factors predicting oral mucositis severity among 133 patients undergoing allogeneic HCT for chronic myelogenous leukemia. PATIENTS AND METHODS All patients were transplanted between 1992 and 1999, were >or= 18 years of age, ...

The majority of patients with acute myeloid leukemia (AML) achieve complete remission (CR) after induction/consolidation chemotherapy. The optimal post-remission treatment is still a matter of debate. However, the intensification of post-remission treatment, including high-dose chemotherapy followed by infusion of autologous or allogeneic stem cells, has progressively increased, considering the...

In this issue of Blood, authors of 2 articles have compared busulfan with total body irradiation (TBI) in preparative regimens for hematopoietic transplantation as treatment of acute myeloid leukemia (AML).

Hypothyroidism is the leading cause of thyroid dysfunction and can be seen in up to 40% of these patients and appropriate treatment is critical importance [1,2]. Hypothyroidism is seen most frequently in patients receiving total body irradition (TBI) containing conditioning regimens. Hypothyroidism may be seen in cases receiving chemotherapyonly conditioning regimens but less frequently [3,4,5]...

the introduction and evolution of hematopoietic stem cell transplantation (hsct) could be traced back to 1950s, to the studies on interactions among irradiation, covering spleen and bone marrow from it and injection of bone marrow cells. today, hsct is considered a well-established, effective and promising means of therapy for various malignant and non-malignant medical conditions, both in chil...

Total body irradiation (TBI) is a well-established component of several conditioning regimens required before bone marrow or hematopoietic stem cell transplantation. In this work, we validate the imparted dose in TBI technique using VMAT Médica Sur. We used an anthropomorphic phantom ATOM 702-D, CIRS (Norfolk, Virginia), add upper extremities homemade material and scanned it CT scanner GE 580RT...

BACKGROUND Intensive chemotherapy frequently results in gut toxicity, indicated by oral and intestinal mucositis, resulting in poor treatment outcomes and increased mortality. There are no effective preventive strategies against gut toxicity and the role of diet is unknown. OBJECTIVE We hypothesized that the severity of chemotherapy-induced gut toxicity in early life is diet-dependent, and th...

A prospective randomized study was conducted comparing two conditioning regimens for the treatment of patients with chronic myeloid leukemia in chronic phase by marrow transplantation from HLA identical siblings. Sixty-nine patients received 60 mg/kg of cyclophosphamide on each of 2 successive days followed by 6 fractions of total body irradiation each of 2.0 Gy (CY-TBI), and 73 patients receiv...