ABSTRACT We analyzed the management and outcomes of pregnancies of patients with chronic myeloid leukemia at a single center over fifteen years. Among the 203 CML female patients, there were ten pregnancies in seven women, all of them not planned. In three cases, the chronic myeloid leukemia diagnosis was made during pregnancy. Five patients received tyrosine kinase inhibitors in the first weeks of pregnancy and the drug was interrupted until delivery. One patient lost complete cytogenetic response, and two patients lost the hematological response. A patient with a stable major molecular response had two successful pregnancies without loss of response. There were four premature births. There were no maternal adverse events, fetal malformation or death. All patients received Interferon-alpha during gestation, and two received hydroxyurea for a short period. Leukapheresis was performed in two patients for hyperleukocytosis control. One patient with sickle cell disease died from disease progression six months after delivery. Conclusions: The tyrosine kinase inhibitors ministration should be interrupted during pregnancy. Patients should be advised to achieve a stable and deep molecular response if they plan to conceive, to avoid the risk of disease progression.

OBJECTIVES: To evaluate whether risk scores used to classify patients with primary myelofibrosis and JAK-2 V617F mutation status can predict clinical outcome. METHODS: A review of clinical and laboratory data from 74 patients with primary myelofibrosis diagnosed between 1992 and 2011. The IPSS and Lille scores were calculated for risk stratification and correlated with overall survival. RESULTS: A V617F JAK2 mutation was detected in 32 cases (47%), with no significant correlation with overall survival. The patients were classified according to the scores: Lille - low, 53 (73.%); intermediate, 13 (18%); and high, 5 (7%); and IPSS- low, 15 (26%); intermediate-1, 23 (32%); intermediate-2, 19 (26%); and high, 15 (31%). Those patients presenting a higher risk according to the IPSS (high and intermediate-2) had a significantly shorter overall survival relative to the low risk groups (intermediate-1 and low) (p = 0.02). CONCLUSIONS: These results emphasize the importance of the IPSS prognostic score for risk assessment in predicting the clinical outcome of primary myelofibrosis patients.

OBJECTIVE: To evaluate the use of high-dose sequential chemotherapy in a Brazilian population. METHODS: High-dose cyclophosphamide followed by autologous hematopoietic stem cell transplantation is an effective and feasible therapy for refractory/relapsed lymphomas; this regimen has never before been evaluated in a Brazilian population. All patients (106 with high-grade non-Hodgkin lymphoma and 77 with Hodgkin's lymphoma) submitted to this treatment between 1998 and 2006 were analyzed. Chemotherapy consisted of the sequential administration of high-dose cyclophosphamide (4 or 7 g/m²) and granulocyte-colony stimulating factor (300 µg/day), followed by peripheral blood progenitor cell harvesting, administration of etoposide (2g/m²) and methotrexate (8 g/m² only for Hodgkin's lymphoma) and autologous hematopoietic stem cell transplantation. RESULTS: At diagnosis, non-Hodgkin lymphoma patients had a median age of 45 (range: 8-65) years old, 78% had diffuse large B-cell lymphoma and 83% had stage III/IV disease. The Hodgkin's lymphoma patients had a median age of 23 (range: 7-68) years old, 64.9% had the nodular sclerosis subtype and 65% had stage III/IV disease. Nine Hodgkin's lymphoma patients (13%) and 10 (9%) non-Hodgkin lymphoma patients had some kind of cardiac toxicity. The overall survival, disease-free survival and progression-free survival in Hodgkin's lymphoma were 29%, 59% and 26%, respectively. In non-Hodgkin lymphoma, these values were 40%, 49% and 31%, respectively. High-dose cyclophosphamide-related mortality was 10% for Hodgkin's lymphoma and 5% for non-Hodgkin lymphoma patients. High-dose cyclophosphamide dosing had no impact on toxicity or survival for both groups. CONCLUSIONS: Despite a greater prevalence of poor prognostic factors, our results are comparable to the literature. The incidence of secondary neoplasias is noteworthy. Our study suggests that this approach is efficient and feasible, regardless of toxicity-related mortality.

OBJETIVOS: O objetivo deste estudo foi investigar a freqüência de antígenos HLA Classe I e de alelos HLA Classe II em 164 pacientes com vários tipos de leucemias: 35 pacientes com LLA (leucemia linfóide aguda), 50 com LMA (leucemia mielóide aguda) e 78 com LMC (leucemia mielóide crônica). MÉTODOS: A tipagem HLA Classe I foi realizada por microlinfocitotoxicidade e a de Classe II por PCR-SSP (polymerase chain reaction - sequence specific of primers), ambas da One Lambda (Canoga Park, CA, US). RESULTADOS: Em pacientes com LLA, as freqüências das variantes HLA-B45 e HLA-B56 foram maiores (P = 0,02; OR = 3,13; 95%IC = 0,94-10,44; P = 0,03; OR = 3,61; 95%IC = 0,47-27,64, respectivamente), quando comparadas com controles. Nos pacientes com LMA, a freqüência de HLA-B7 (P = 0,01; OR = 2,41; 95%IC = 1,25-4,67) foi maior que em controles. A presença de HLA-B45 (P= 0,01; OR = 3,29; 95%IC = 1,46-7,40) e de HLA-DRB1*04 (P = 0,002; OR = 2,17; 95%IC = 1,36-3,46) e HLA-DRB1*08 (P = 0,004; OR = 2,36; 95%IC = 1,34-4,16) foi associada ao maior risco de desenvolver LMC. CONCLUSÃO: Nossos resultados sugerem que variantes HLA conferem susceptibilidade a algumas formas de leucemia e podem prover novas ferramentas para a investigação da genética e etiologia desta doença.

OBJECTIVE: The main purpose of this study was to investigate the class I HLA antigens and class II HLA allele frequencies in 164 patients with leukemia: 35 patients with ALL (acute lymphoid leukemia), 50 with AML (acute myeloid leukemia) and 78 with CML (chronic myeloid leukemia). METHODS: The genotyping of class I HLA was performed by microlymphocytotoxicity and of class II by PCR-SSP (polymerase chain reaction - sequence specific of primers) (One Lambda, Canoga Park, CA, USA). RESULTS: In patients with LLA, frequencies of HLA-B45 and HLA-B56 were higher (P = 0.02; OR = 3.13; 95%IC = 0.94-10.44; P = 0.03; OR = 3.61; 95%IC = 0.47-27.64, respectively), than in controls. In patients with AML, the frequency of HLA-B7 (P = 0.01; OR = 2.41; 95%IC = 1.25-4.67) was higher than in controls. The presence of HLA-B45 (P= 0.01; OR = 3.29; 95%IC = 1.46-7.40), HLA-DRB1*04 (P = 0.002; OR = 2.17; 95%IC = 1.36-3.46) and HLA-DRB1*08 (P = 0.004; OR = 2.36; 95%IC = 1.34-4.16) was associated to increased risk of CML developing. CONCLUSION: Our results suggest that variants of HLA confer susceptibility to the same forms of leukemia, and could provide new tools for the investigation of genetics and etiology of this disease.

CONTEXTO: Pacientes adultos com diagnóstico de leucemia mielóide aguda (LMA) obtém remissão completa (RC) com quimioterapia convencional em cerca de 55-85% dos casos, e a sua duração é de aproximadamente 12 meses. Cerca de 30% dos pacientes não atingem a RC. Para manter a RC e obter cura definitiva parece ser necessário intensificar o tratamento após a RC. No Brasil, há um pequeno número de artigos publicados a esse respeito. OBJETIVO: Descrever a experiência brasileira no tratamento de leucemia mielóide aguda "de novo" em jovens e adultos com idade inferior a 60 anos. TIPO DE ESTUDO: Análise retrospectiva. LOCAL: Hospital das Clínicas e Hemocentro da Universidade Estadual de Campinas. PARTICIPANTES: Foram estudados, retrospectivamente, casos novos de LMA entre 1994 e 1998, com relação à resposta ao tratamento de quimioterapia, sobrevida global e sobrevivência livre de doença. RESULTADOS: Entraram no estudo 78 pacientes de LMA, incluindo 17 casos de leucemia promielocítica (LPM). A média de seguimento foi de 272 dias. A taxa de RC foi de 63,6% nos pacientes com LMA excluindo-se os pacientes com LPM, e 78% nos pacientes com LPM. A sobrevida livre de doença em 5 anos foi de 80% nos pacientes com LPM e 34% para os pacientes com LMA (P=0,01). A sobrevida global foi de 52% e 20,5% para os pacientes com LPM e LMA respectivamente (P=NS). Recidiva foi observada em 12/39 (30,7%) dos pacientes com LMA e 1/11 (9%) na LPM. CONCLUSÕES: Esses resultados são semelhantes aos encontrados na literatura, entretanto, o número de recidivas e a mortalidade mantém-se alta, recomendando-se pesquisa de estratégias mais agressivas para prevenir recidivas.

CONTEXT: Young patients affected by acute myeloid leukemia (AML) achieve complete remission (CR) using conventional chemotherapy in about 55-85%. However, 30% of patients fail to achieve CR and the remission duration is often only about 12 months. More intensive treatment after CR seems to be necessary in order to maintain CR and obtain a definitive cure. In Brazil, few reports have been published on this important subject. OBJECTIVE: The aim of this study was to describe a Brazilian experience in the treatment of "de novo" acute myeloid leukemia (AML) in younger adult patients (age < 60 years). DESIGN: Retrospective analysis. SETTING: University Hospital, Hematology and Hemotherapy Center, State University of Campinas, Brazil. PARTICIPANTS: Newly diagnosed cases of "de novo" AML in the period from January 1994 to December 1998 were evaluated retrospectively, in relation to response to treatment, overall survival (OS) and disease free survival (DFS). Cases with acute promyelocytic leukemia (APL) were also included in this analysis. RESULTS: On the basis of an intention to treat, 78 cases of AML, including 17 cases of APL, were evaluated. The overall median follow-up was 272 days. The complete remission (CR) rate was 63.6% in the AML group (excluding APL) and 78% in the APL group. The 5-year estimated disease-free survival (DFS) was 80% for the APL group and 34% for the AML group (P = 0.02). The 5-year estimated overall survival (OS) was 52% for the APL group and 20.5% for the AML group, respectively (P = NS). Relapse was observed in 12/39 (30.7%) patients with AML and 1/11 (9%) with APL. CONCLUSIONS: These results are similar to those reported in the literature. However, relapse and mortality rates remain high, and a search for more aggressive strategies in order to prevent relapse is recommended.

CONTEXTO: Lesões no fígado são relativamente comuns em pacientes com a Doença de Hodgkin. Uma pequena proporção dos casos desenvolvem icterícia. Recentemente, a Síndrome do desaparecimento do duto biliar desenvolveu-se na Doença de Hodgkin. Os mecanismos dessa doença são muito pouco conhecidos até hoje. OBJETIVO: Descrever um raro caso de colestase relacionada à síndrome do desaparecimento dos dutos biliares. TIPO DE ESTUDO: Relato de Caso. RELATO DO CASO: Paciente masculino, 38 anos, portador de Doença de Hodgkin. A biópsia hepática revelou ausência de HD e colestase intra-hepática sendo que dos seis espaços porta analisados nenhum apresentava dutos biliares normais. O tratamento foi baseado em quimioterapia convencional e posterior quimioterapia em altas doses escalonadas. O paciente apresentou uma má evolução e faleceu devido a falência irreversível da função hepática, em remissão completa do linfoma.

CONTEXT: Liver damage is relatively common in patients affected by Hodgkin's disease. A smaller proportion of cases develops jaundice. Recently, the vanishing bile duct syndrome was described in Hodgkin's disease. The mechanisms of this severe complication have been poorly understood until now. OBJECTIVE: To describe a rare case of intra-hepatic cholestasis due to vanishing bile duct syndrome. DESIGN: Case report. CASE REPORT: A 38-year-old male patient affected by Hodgkin's disease. Liver biopsy showed no detectable Hodgkin's disease. Intra-hepatic cholestasis was found and none of the six portal tracts analyzed contained normal bile ducts. The treatment was based on conventional and high-dose escalation chemotherapy. The patient died from an irreversible liver failure while in complete remission from Hodgkin's disease.