Objectivo: vários estudos têm analisado a produção acadêmica dos pesquisadores do Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), em diversas áreas do conhecimento. O objetivo deste estudo foi avaliar a produção científica de pesquisadores de Hematologia- Oncologia, cadastrados como bolsistas de produtividade científica do CNPq. Métodos: os currículos Lattes de 28 pesquisadores em Hematologia-Oncologia, com bolsas ativas no triênio 2006 a 2008, foram incluídos na análise. As variáveis de interesse foram: instituição, tempo de doutoramento, orientação de alunos de graduação, mestres e doutores, artigos publicados e seu impacto. Resultados: de um total de 411 pesquisadores em Medicina, 28 (7%) foram identificados como da área da Hematologia- Oncologia. Houve uma discreta predominância do gênero masculino (53,6%) e de bolsistas na categoria 1 (53,6%). Três Estados da Federação são responsáveis por 90% dos pesquisadores: São Paulo (21; 75%), Rio de Janeiro (3; 11%) e Minas Gerais (2; 7%). No total da carreira acadêmica, os pesquisadores publicaram 2.655 artigos em periódicos, sendo a mediana de 87 artigos por pesquisador (intervalo interquartil [IQ] = 52-122). Desse total, 65% e 78% foram artigos indexados nas bases de dados Web of Science (WoS) e Scopus, respectivamente. Os pesquisadores receberam 14.247 citações na base de dados WoS, sendo a mediana por pesquisador de 385 citações. A média de citações por artigo foi de 8,2. Conclusão: na presente investigação, observou-se que os pesquisadores na área de Hematologia-Oncologia apresentam uma produção científica relevante do ponto de vista qualitativo quando comparada a das demais especialidades médicas.

Objective: several studies have examined the academic production of the researchers at the CNPq, in several areas of knowledge. The aim of this study was to evaluate the scientific production of researchers in Hematology/Oncology who hold scientific productivity grants from the Brazilian Council for Scientific and Technological Development. Methods: the Academic CVs of 28 researchers in Hematology/Oncology with active grants in the three-year period from 2006 to 2008 were included in the analysis. The variables of interest were: institution, researchers’ time after doctorate, tutoring of undergraduate students, masters and PhD degree, scientific production and its impact. Results: from a total of 411 researchers in Medicine, 28 (7%) were identified as being in the area of Hematology/Oncology. There was a slight predominance of males (53.6%) and grant holders in category 1. Three Brazilian states are responsible for approximately 90% of the researchers: São Paulo (21,75%), Rio de Janeiro (3,11%), and Minas Gerais (2, 7%). During their academic careers, the researchers published 2,655 articles, with a median of 87 articles per researcher (IQR = 52 to 122). 65 and 78% of this total were indexed on the Web of Science and Scopus databases, respectively. The researchers received 14,247 citations on the WoS database with a median of 385 citations per researcher. The average number of citations per article was 8.2. Conclusion: in this investigation, it was noted that researchers in the field of Hematology/Oncology have a relevant scientific output from the point of view of quantity and quality compared to other medical specialties.

OBJECTIVE: Burkitt's lymphoma is the most common subtype of non-Hodgkin lymphoma in children. The aim of this study was to characterize the clinical course and prognostic factors of children and adolescents with Burkitt's lymphoma treated in the Hematology Unit of Hospital das Clínicas, Universidade Federal de Minas Gerais (UFMG). METHODS: A retrospective cohort study was made of 50 consecutive cases of children and adolescents aged 16 years or less with Burkitt's lymphoma admitted between January 1981 and December 2007. Prognostic factors associated with death were evaluated using the Kaplan-Meier method and compared by the two-tailed log-rank test. RESULTS: The median age at diagnosis was 4.7 years. Most patients had abdominal tumors (66.7%) and advanced disease (68.9%) at diagnosis. Thirty-eight patients (84.4%) achieved complete clinical remission and 33 (73.3%) were alive at the first remission. Twelve children (26.7%) died. The median follow-up was 35 months with the probability of overall survival being 73% (89.2% and 35.7% for patients with uric acid < 7 mg/dL and > 7.0 mg/dL, respectively - p-value < 0.001). Uric acid was the only significant prognostic factor at diagnosis. CONCLUSION: Our findings confirm the favorable prognosis of children with Burkitt's lymphoma even when treated with intermediate doses of methotrexate (500 mg/m2). Survival was significantly lower for individuals with concentrations of uric acid > 7 mg/dL.

BACKGROUND: Hereditary spherocytosis (HS) is an inherited hemolytic anemia that is caused by deficiency or dysfunction of erythrocyte cytoskeletal proteins. AIM: The aim of this study was to describe the clinical course of hereditary spherocytosis in patients treated in the Pediatric Hematology Unit, Hospital das Clínicas, Universidade Federal de Minas Gerais. METHODS: Sixty-three under 16-year-old patients with hereditary spherocytosis were retrospectively evaluated between January 1988 and December 2007. Hereditary spherocytosis was diagnosed based on clinical history, physical examination and on a positive osmotic fragility curve. Patients underwent screening for cholelithiasis by ultrasonography. They were classified into three groups: mild, moderate and severe. The events of interest were need for blood transfusion, cholelithiasis, splenic sequestration, aplastic crisis, and splenectomy. Differences between subgroups were evaluated by the two-sided log-rank test. RESULTS: The mean age at diagnosis was 5.2 years and most patients were classified as moderate (54%). Patients with the severe form of the disease were younger (p-value = 0.001) and needed more blood transfusions (p-value = 0.004). Seventeen patients (27%) developed cholelithiasis, 14 (22.2%) splenic sequestration and three (4.8%) aplastic crises. Twenty-two patients (34.9%) were splenectomized with the main indication being splenic sequestration in nine patients (41%). CONCLUSIONS: The clinical course of patients with hereditary spherocytosis in this study was relatively benign however cholelithiasis was a common complication.

Os linfomas cutâneos compreendem um grupo heterogêneo de desordens linfoproliferativas que envolvem a pele e são classificados como um subgrupo dos linfomas não Hodgkin. No período de 1981 a 2007, 100 casos de linfomas em crianças foram admitidos no Serviço de Hematologia, do Hospital das Clínicas da Universidade Federal de Minas Gerais, sendo que nove apresentaram manifestação cutânea inicial. Três pacientes foram classificados como linfoma cutâneo primário e seis como sistêmicos. Sete pacientes apresentaram linfoma de células T, um, linfoma linfoblástico B e um, imunofenótipo indefinido. Nenhum óbito ocorreu nos pacientes com linfoma cutâneo primário

Cutaneous lymphomas comprise a heterogeneous group of lymphoproliferative disorders with skin involvement and are classified as a subgroup of non-Hodgkin lymphomas. From 1981 to 2007, 100 children with non-Hodgkin lymphomas were admitted to the Hematology Unit of the Federal University of Minas Gerais Teaching Hospital. In nine of these children, the skin was involved at the onset of the disease. Three patients were classified as having primary cutaneous lymphoma, while in six the disease was systemic with cutaneous involvement. In seven patients, the immunophenotype was T-cell, in one it was B-cell, and in the remaining case the immunophenotype was indefinable. No deaths occurred in any of the children with primary cutaneous lymphoma

OBJETIVO: O objetivo deste estudo foi avaliar o perfil e a produção científica de pesquisadores de Medicina, que têm bolsa de produtividade do Conselho Nacional de Desenvolvimento Científico e Tecnológico, de acordo com a área de atuação. MÉTODOS: Os currículos lattes de 411 pesquisadores com bolsas ativas no triênio 2006 a 2008 foram incluídos na análise. As variáveis de interesse foram: sexo, área de atuação; artigos publicados, e orientação de alunos de graduação, mestres e doutores. RESULTADOS: Houve uma predominância do sexo masculino (68%) e de bolsistas na categoria 2 (55,7%). Quatro Estados da Federação são responsáveis por 90% dos pesquisadores (SP, RJ, RS, MG). Oito instituições são responsáveis por aproximadamente 80% dos pesquisadores, destacando-se USP (30,7%) e UNIFESP (17%). Foram identificadas 30 áreas de atuação dos pesquisadores. Em relação à produção científica, a mediana de artigos publicados foi de 4,13/ano (Intervalo interquartil, IQ, 2,9 - 5,8). A mediana ajustada de artigos publicados na base de dados Web of Science foi de 2,23/ano (IQ, 1,4 - 3,2). Neurociências (3,16, IQ, 1,8 - 4,7) e Psiquiatria (2,92, IQ, 1,73 - 4,5) foram as áreas mais produtivas de artigos indexados. CONCLUSÃO: Há uma concentração dos pesquisadores da Medicina na região Sudeste. Nesse estudo pode ser observado um aumento da produção científica da maioria dos pesquisadores nos últimos cinco anos. Através do conhecimento do perfil dos pesquisadores da área de Medicina, podem ser definidas de maneira mais eficaz, estratégias para incentivar a produção científica e a demanda de recursos para o financiamento de projetos de pesquisa.

OBJECTIVE: This study evaluated the profile and scientific production of researchers in Medicine who have a scholarship from the " Conselho Nacional de Desenvolvimento Científico e Tecnológico" . METHODS: The "Lattes" curriculum of 411 researchers in Medicine with active scholarships during the years of 2006 to 2008 were included in the analysis. Variables of interest were: gender; affiliation; scientific production, and supervision of undergraduate masters and doctorate students.. RESULTS: There was a male predominance (68%) and of scholarship level 2 (55.7%). Four states of Brazil are responsible for 90% of the researchers (SP, RJ, RS, and MG). Eight institutions account for about 80% of researchers, especially USP (30.7%) and UNIFESP (17%). The study identified 30 areas of expertise for researchers. In relation to scientific production, the median was 4.13 articles published per year (interquartile range, IQ, 2.9 - 5.8). The median adjusted for articles published in the database Web of Science was 2.23 per year (IQ, 1.4 - 3.2). The most productive areas of indexed articles were the areas of Neurosciences (3.16, IQ, 1.8 - 4.7) and Psychiatry (2.92, IQ, 1.73 - 4.5). CONCLUSION: Researchers in medicine are concentrated in the Southeast. This study has disclosed an increase in scientific output by most researchers in the last five years. Effective strategies to qualitatively improve the scientific output may possibly be enhanced by knowledge of the profile of researchers in Medicine.