Allogeneic hematopoietic stem cell transplantation in adolescent and adult patients with high-risk T cell acute lymphoblastic leukemia.

Allogeneic hematopoietic stem cell transplantation (allo-SCT) is often recommended for patients with T cell acute lymphoblastic leukemia (T-ALL) in second or later complete remission (≥CR2) and sometimes in high-risk (HR) patients in first complete remission (CR1). Between January 1995 and July 2009, 53 patients with HR T-ALL underwent allo-SCT at our institution. Median age was 18 years (range, 14-51). Thirty-two patients (60.3%) were in CR1, 18 (34%) were in ≥CR2, and 3 (5.7%) were in relapse. The cumulative incidence of nonrelapse mortality at 5 years was 22.5%. The cumulative incidence of grade II-IV acute graft-versus-host disease (GVHD) was 40.2%, and that of chronic GVHD was 43.7%. The majority of relapses (88.9%) occurred within 1 year after SCT. The cumulative incidence of relapse (CIR) at 5 years was 35.6%. CIR was 29.8% in patients in CR1, 35.3% in patients in ≥CR2 and all patients transplanted in relapse had disease recurrence post-allo-SCT (P = .000). Overall survival (OS) and disease-free survival (DFS) at 5 years were 43.5% and 41.8%, respectively. The 5-year OS was 53.5% (95% CI 34.5%-72.5%) and 5-year DFS was 52% (95% CI 33%-71%) in patients who underwent allo-SCT in CR1, compared with 31.9% (95% CI, 9%-54.8%) and 29.4% (95% CI 7.6%-51.2%) in those who underwent allo-SCT in ≥CR2. On multivariate analysis, disease status at SCT remained significantly associated with OS (P = .007), DFS (P = .002), and CIR (P = .000). The presence of extramedullary disease at diagnosis had no effect on the different outcomes. Grade II-IV acute GVHD was significantly associated with a lower OS (P = .006) and DFS (P = .01). Our data indicate that allo-SCT represents an effective treatment for HR T-ALL, particularly when performed in CR1.

Stem cell transplantation in hematological disorders. A developing country experience-impact of cost considerations.

OBJECTIVE: To describe the experience in setting up a bone marrow transplant program at Ain Shams University, Cairo, Egypt. METHODS: Sixteen patients were transplanted at Ain Shams University Bone Marrow Transplantation unit from March 2005 to January 2008. RESULTS: Sixteen patients were transplanted with a median age of 25 years. Indications for transplantation were chronic myeloid leukemia, acute myeloid leukemia, aplastic anemia, acute lymphoblastic leukemia, and aggressive lymphoma. Seven donors and 6 patients were positive for cytomegalovirus immunoglobulin G (IgG) antibody (Ab) pretransplant. Only one patient was positive for toxoplasma IgG Ab and another had a high titre for toxoplasma IgM Ab pretransplant. Two donors and 2 recipients were positive for hepatitis B antibody markers; however, none were positive for hepatitis B virus DNA by polymerase chain reaction (PCR). None of the patients or donors were positive for hepatitis C virus via PCR pre-transplant. Acute graft versus host disease (GVHD) was seen in 3 patients, while chronic GVHD was seen in 5 patients. Primary cause of death was recurrence in 2 patients and graft failure in one patient. Thirteen are alive and disease free with a median follow-up of 20 months. CONCLUSION: Although our unit is a relatively new unit, these results are comparable to those achieved in the Western world and cost a mean of US$250,000.

Right heart thrombus-in-transit with pulmonary embolism in a patient with primary hypercoagulable state.

A 25 year-old female with a history of Caesarian section ten weeks ago presented with symptoms suggestive of pulmonary embolism. Transthoracic echocardiography revealed a free-floating large thrombus traversing the right atrial cavity. Transesophageal echocardiography confirmed the presence of an unattached thrombus that originated from the most proximal part of the inferior vena cava. Multi-slice computed tomography of the chest and abdomen revealed the thrombus to start from the intra-hepatic part of the inferior vena cava and extend through the right atrium. It also demonstrated multiple thrombi in the pulmonary vasculature, the largest being in the right main pulmonary artery and its lower lobe branch. The patient was triaged for surgical embolectomy under cardio-pulmonary bypass. Follow-up trans-thoracic and transesophageal echocardiography confirmed adequate removal of the thrombus. By genetic examination, she proved to have factor V 'Leiden' gene and two thrombophilia genes, all of which were positive in the heterozygous state. She had also a high serum homocysteine.

Pro-inflammatory cytokines and depression in patients with acute leukemia.

The prevalence of depression among patients diagnosed with cancer is higher than general population and is associated with faster tumor progression and shorter survival time. Cytokines whose primary function is to act as signaling molecules of the immune system have recently also been implicated in the pathogenesis of depression. The aim of present study was to investigate the relation between pro-infammatory cytokines [Interleukin-6 (IL-6) and Tumor Necrosis Factor-alpha (TNF-alpha)], depression and stressful life events in patients with acute leukemia. Twenty eight patients (18 males and 10 females) suffering from acute leukemia participated in this study. Their mean age was 33.3 +/- 12.1 years. They were subjected to psychiatric assessment using The Beck Depression Inventory (BDI), Holmes and Rahe Social Readjustment Scale, The Perceived Stress Scale (PSS) and The Brief Fatigue Inventory (BFI). Measurement of IL-6 and TNF-a genes expression in peripheral blood mononuclear cells was done using real-time PCR. Results revealed statistically significant elevation in the level of IL-6 gene expression, fatigue and perceived stress among depressed patients compared to none depressed group. The same results were obtained when comparing patients exposed to moderate or severe stressful life events compared to those exposed to none or mild stressful life events. Although, TNF-a gene expression was not associated with depression or stressful life events, it was associated with acute myeloblastic leukemia (AML). IL-6 gene expression was much higher among patients with AML than acute lymphoblastic leukemia (ALL), but the difference did not reach statistical significance. These findings support the hypothesis that IL-6 might be involved in the etiology and symptomatology of depression in cancer patients. The development of biologic therapies targeting IL-6 may raise the possibility of simultaneously countering the severe effects of depression.