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1.
Rev. bras. educ. méd ; 41(2): 290-298, abr.-jun. 2017. tab
Article in Portuguese | LILACS | ID: biblio-898120

ABSTRACT

RESUMO Objetivo Produção de conhecimento, geração de tecnologia e formação de recursos humanos para pesquisa são temas que têm se destacado nos ambientes acadêmico e governamental. O objetivo deste estudo foi comparar a produtividade científica, formação de recursos humanos e o perfil de pesquisadores contemplados com bolsas de produtividade em pesquisa pelo Conselho Nacional de Desenvolvimento Técnico e Científico (CNPq), provenientes de cinco áreas de conhecimento médicas. Métodos Este é um estudo descritivo e comparativo entre pesquisadores, com bolsas das áreas de Cardiologia, Hematologia/Oncologia, Nefrologia/ Urologia, Neurociência Clínica e Pediatria, obtido por meio de estudos prévios. As variáveis analisadas foram: gênero, instituição de origem do pesquisador, tempo de doutoramento, instituição de doutoramento, orientações de iniciação científica, mestrado e doutorado, e publicações em periódicos. Os pesquisadores contemplados com bolsas de produtividade científica (PQ) foram também divididos nas categorias do CNPq em: 2, 1A, 1B, 1C e 1D. Resultados Do total de 411 pesquisadores em Medicina, 192 (46,7%) foram identificados como pertencentes a áreas dos cinco estudos envolvidos, com predominância do sexo masculino (71,3%), concentrando-se nas categorias 2 e 1A. As regiões Sudeste e Sul, juntas, concentram a maioria dos pesquisadores (mais de 90,0%), sendo São Paulo responsável por 63% dos pesquisadores, sediando também as duas principais instituições - Universidade Federal de São Paulo (Unifesp) e Universidade de São Paulo (USP) -, que continham 49,5% dos bolsistas. Houve prevalência na formação de mestres (1.846 orientações), seguida de 1.674 alunos de iniciação científica e de 1.115 alunos de doutorado. Foram publicados 18.456 artigos em periódicos, sendo 56,0% deles indexados na base ISI e 78,0% na base Scopus. Conclusões Em todas as áreas médicas analisadas há uma crescente produtividade científica, com destaque para a Neurociência Clínica, e expressiva formação de recursos humanos, com uma preocupação constante em melhorar o desempenho qualitativo. Entretanto, há uma disparidade regional quanto à concentração de pesquisadores, bem como não se verifica produção de patentes.


ABSTRACT Objective Knowledge production, technology generation and human resource training for research are themes which have been under the limelight in the academic and governmental environment. The aim of this study was to compare the scientific productivity, human resource training and the profile of researchers awarded scientific productivity grants by the CNPq (Brazilian Council for Scientific and Technological Development), from medical knowledge areas. Methods This is a descriptive and comparative study among researchers with scholarships in the fields of Cardiology, Hematology/Oncology, Nephrology/Urology, Pediatrics and Clinical Neuroscience, obtained through previous studies. The variables analyzed were: gender, researcher home institution, PhD time, doctoral institution, undergraduate research guidelines, master's and doctorate degrees, and publications in journals. The researchers granted with the PQ (scientific productivity) grants were also divided into the present CNPq categories of: 2, 1A, 1B, 1C and 1D. Results from a total of 411 researchers in Medicine, 192 (46.7%) were identified as belonging to areas of the five studies involved, predominantly male (71.3%), concentrated in categories 2 and 1A. The southeastern and southern Brazilian regions together comprise the majority of the researchers (over 90.0%) and São Paulo accounted for 63.0% of the researchers, also hosting the two main institutions - Universidade Federal de São Paulo (Unifesp) and Universidade de São Paulo (USP) - containing 49.5% of the stock. There was a prevalence students undergoing of teacher training (1,846 master's degree supervisions), followed by 1,674 undergraduate and 1,115 doctoral students. Of the 18,456 articles that were published in journals, 56.0% of them indexed in the ISI database and 78% in Scopus. Conclusions In this study, it was noted that all the analysed fields showed growing scientific productivity, above all Clinical Neuroscience, and expressive human resource training, with a constant for improving quality performance. However, regional disparity was found as regards the concentration of researchers, as well as a lack of patent production.

2.
Rev. Assoc. Med. Bras. (1992) ; 62(1): 59-64, Jan.-Feb. 2016. tab, graf
Article in English | LILACS | ID: lil-777442

ABSTRACT

SUMMARY Introduction: lymphoblastic lymphoma (LBL) is the second most common subtype of non-Hodgkin lymphoma in children. The aim of this study was to characterize the clinical course of children and adolescents with LBL treated at a tertiary center. Methods: this is a retrospective cohort study of 27 patients aged 16 years or less with LBL admitted between January 1981 and December 2013. Patients received intensive chemotherapy regimen derived from acute lymphoblastic leukemia (ALL) therapy. Diagnosis was based on biopsy of tumor and/or cytological examination of pleural effusions. The overall survival was analyzed using the Kaplan-Meier method. Results: the median age at diagnosis was 11.6 years (interquartile range, 4.6-13.8). LBL had T cell origin in 16 patients (59%). The most common primary manifestation in T-cell LBL was mediastinum involvement in 9 patients (56%). Intra-abdominal tumor was the major site of involvement in patients with pB-LBL. Most patients had advanced disease (18 patients - 67%) at diagnosis. Twenty-four patients (89%) achieved complete clinical remission. After a median follow-up of 43 months (interquartile range, 6.4-95), 22 patients (81%) were alive in first complete remission. Five children (18.5%) died, three of them soon after admission and two after relapsing. The probability of survival at five years for 20 patients with de novo LBL was 78% (SD 9.4). Conclusion: our findings confirm the favorable prognosis of children with LBL with an intensive chemotherapy regimen derived from ALL therapy.


RESUMO Objetivos: linfoma linfoblástico (LL) é o segundo subtipo mais comum de linfoma não Hodgkin em crianças. O objetivo deste estudo foi caracterizar a evolução clínica de crianças e adolescentes com LL em um centro terciário. Métodos: estudo de coorte retrospectivo de 27 pacientes com idade de até 16 anos com LL admitidos entre janeiro de 1981 e dezembro de 2013. Os pacientes foram tratados de acordo com o protocolo de tratamento para leucemia linfoblástica aguda (LLA). O diagnóstico foi baseado em biópsia do tumor e/ou no exame citológico de derrame pleural. A sobrevida global foi analisada pelo método de Kaplan-Meier. Resultados: a média de idade ao diagnóstico foi de 11,6 anos (variação interquartil, 4,6-13,8). LL de células T foi identificado em 16 pacientes (59%) e a manifestação primária mais comum foi o acometimento mediastinal em 9 pacientes (56%). Tumor intra-abdominal foi a manifestação clínica principal nos pacientes com LL de células pré-B. A maioria dos pacientes apresentava doença avançada (18 pacientes - 67%) ao diagnóstico. Vinte e quatro pacientes (89%) alcançaram remissão clínica completa. Após um período de acompanhamento médio de 43 meses (intervalo interquartil, 6,4-95), 22 pacientes (81%) continuam vivos em primeira remissão clínica completa. Cinco crianças (18,5%) morreram, três delas logo após a admissão e duas após recidiva. A probabilidade de sobrevida em cinco anos para 20 pacientes com LL de novo foi de 78% (SD 9.4). Conclusão: nossos resultados confirmam o prognóstico favorável de crianças com LL tratadas com regime de quimioterapia intensiva derivado da terapia de LLA.


Subject(s)
Humans , Male , Female , Child , Adolescent , Child Development/physiology , Adolescent Development/physiology , Precursor Cell Lymphoblastic Leukemia-Lymphoma/physiopathology , Precursor Cell Lymphoblastic Leukemia-Lymphoma/drug therapy , Time Factors , Immunohistochemistry , Retrospective Studies , Treatment Outcome , Statistics, Nonparametric , Kaplan-Meier Estimate , Precursor Cell Lymphoblastic Leukemia-Lymphoma/mortality , Neoplasm Recurrence, Local
3.
Rev. Assoc. Med. Bras. (1992) ; 61(5): 417-422, Sept.-Oct. 2015. tab, graf
Article in English | LILACS | ID: lil-766254

ABSTRACT

Summary Introduction: lymphoblastic lymphoma (LBL) is the second most common subtype of non-Hodgkin lymphoma in children. The aim of this study was to characterize the clinical course of children and adolescents with LBL treated at a tertiary center. Methods: this is a retrospective cohort study of 27 patients aged 16 years or younger with LBL admitted between January 1981 and December 2013. Patients were treated according to the therapy protocol used for acute lymphoblastic leucemia. Diagnosis was based on biopsy of tumor and/or cytological examination of pleural effusions. The overall survival was analyzed using the Kaplan-Meier method. Results: the median age at diagnosis was 11.6 years (interquartile range, 4.6- 13.8). LBL had T-cell origin in 16 patients (59%). The most common primary manifestation in T-cell LBL was mediastinal involvement, in 9 patients (56%). Intra-abdominal tumor was the major site of involvement in patients with precursor B-LBL. Most patients had advanced disease (18 patients – 67%) at diagnosis. Twenty-four patients (89%) achieved complete clinical remission. After a median follow-up of 43 months (interquartile range, 6.4-95), 22 patients (81%) were alive in first complete remission. Five children (18.5%) died, three of them soon after admission and two after relapsing. The probability of survival at five years for 20 patients with de novo LBL was 78% (SD 9.4). Conclusion: our findings confirm the favorable prognosis of children with LBL with an intensive chemotherapy regimen derived from ALL therapy.


Resumo Objetivos: linfoma linfoblástico (LL) é o segundo subtipo mais comum de linfoma não Hodgkin em crianças. O objetivo deste estudo foi caracterizar a evolução clínica de crianças e adolescentes com LL em um centro terciário. Métodos: estudo de coorte retrospectivo de 27 pacientes com idade de até 16 anos com LL admitidos entre janeiro de 1981 e dezembro de 2013. Os pacientes foram tratados de acordo com o protocolo de tratamento para leucemia linfoblástica aguda (LLA). O diagnóstico foi baseado em biópsia do tumor e/ou no exame citológico de derrame pleural. A sobrevida global foi analisada pelo método de Kaplan-Meier. Resultados: a média de idade ao diagnóstico foi de 11,6 anos (variação interquartil, 4,6-13,8). Linfoma linfoblástico de células T foi identificado em 16 pacientes (59%) e a manifestação primária mais comum foi o acometimento mediastinal (56%). Tumor intra-abdominal foi a manifestação clínica principal nos pacientes com LL de células pré- -B. A maioria dos pacientes apresentava doença avançada (18 pacientes, 67%) ao diagnóstico. Vinte e quatro pacientes (89%) alcançaram remissão clínica completa. Após um período de acompanhamento médio de 43 meses (intervalo interquartil, 6,4-95), 22 pacientes (81%) continuam vivos em primeira remissão clínica completa. Cinco crianças (18,5%) morreram, três delas logo após a admissão e duas após recidiva. A probabilidade de sobrevida em cinco anos para 20 pacientes com LL de novo foi de 78% (DP 9,4). Conclusão: os resultados confirmam o prognóstico favorável de crianças com LL tratadas com regime de quimioterapia intensiva derivado da terapia de LLA.


Subject(s)
Adolescent , Child , Child, Preschool , Female , Humans , Male , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Precursor Cell Lymphoblastic Leukemia-Lymphoma/drug therapy , Cohort Studies , Disease-Free Survival , Follow-Up Studies , Longitudinal Studies , Prognosis , Precursor Cell Lymphoblastic Leukemia-Lymphoma/mortality , Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy , Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/mortality , Retrospective Studies , Survival Analysis , Tertiary Care Centers , Treatment Outcome
4.
Rev. Assoc. Med. Bras. (1992) ; 60(6): 542-547, Nov-Dec/2014. tab, graf
Article in English | LILACS | ID: lil-736308

ABSTRACT

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. .


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. .


Subject(s)
Female , Humans , Male , Bibliometrics , Biomedical Research/statistics & numerical data , Hematology/statistics & numerical data , Medical Oncology/statistics & numerical data , Research Personnel/statistics & numerical data , Brazil , Cross-Sectional Studies , Hematology/education , Journal Impact Factor , Medical Oncology/education , Sex Distribution
5.
Rev. bras. hematol. hemoter ; 34(1): 9-13, 2012. ilus, tab
Article in English | LILACS | ID: lil-618295

ABSTRACT

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 percent). 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 percent) developed cholelithiasis, 14 (22.2 percent) splenic sequestration and three (4.8 percent) aplastic crises. Twenty-two patients (34.9 percent) were splenectomized with the main indication being splenic sequestration in nine patients (41 percent). CONCLUSIONS: The clinical course of patients with hereditary spherocytosis in this study was relatively benign however cholelithiasis was a common complication.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Child , Cholelithiasis , Retrospective Studies , Spherocytosis, Hereditary , Splenectomy
6.
Rev. bras. hematol. hemoter ; 34(5): 361-366, 2012. graf, tab
Article in English | LILACS | ID: lil-654978

ABSTRACT

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.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Prognosis , Survival , Uric Acid , Lymphoma, Non-Hodgkin , Child , Burkitt Lymphoma
7.
An. bras. dermatol ; 86(4): 799-802, jul.-ago. 2011. ilus, tab
Article in Portuguese | LILACS | ID: lil-600631

ABSTRACT

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.


Subject(s)
Child , Child, Preschool , Female , Humans , Infant , Male , Lymphoma, T-Cell, Cutaneous/pathology , Skin Neoplasms/pathology , Follow-Up Studies , Prognosis , Retrospective Studies
8.
Rev. Assoc. Med. Bras. (1992) ; 56(4): 478-483, 2010. graf, tab
Article in Portuguese | LILACS | ID: lil-557331

ABSTRACT

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 por cento) e de bolsistas na categoria 2 (55,7 por cento). Quatro Estados da Federação são responsáveis por 90 por cento dos pesquisadores (SP, RJ, RS, MG). Oito instituições são responsáveis por aproximadamente 80 por cento dos pesquisadores, destacando-se USP (30,7 por cento) e UNIFESP (17 por cento). 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 percent) and of scholarship level 2 (55.7 percent). Four states of Brazil are responsible for 90 percent of the researchers (SP, RJ, RS, and MG). Eight institutions account for about 80 percent of researchers, especially USP (30.7 percent) and UNIFESP (17 percent). 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.


Subject(s)
Female , Humans , Male , Biomedical Research/statistics & numerical data , Government Agencies , Research Personnel/statistics & numerical data , Research Support as Topic/statistics & numerical data , Bibliometrics , Brazil , Biomedical Research/economics , Cross-Sectional Studies
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