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Tratamento conservador e timectomia na miastenia grave: resultados avaliados a curto e longo prazos

Myasthenia gravis treated with and without thymectomy: short and long term results

Resumos

Dois grupos de pacientes com miastenia grave adquirida foram analisados evolutivamente, para se verificar a influência da terapêutica no comportamento da doença. Dezenove foram timectomizados (grupo I) e 14 tratados por métodos conservadores (grupo II). Ambos os grupos foram homogeneizados demograficamente. Estabeleceram-se parâmetros que pudessem avaliar a história natural da doença e variáveis com o objetivo maior de análise comparativa na recuperação dos pacientes. Houve influência significativa quanto à utilização de quaisquer terapêuticas individualmente. Ambos os grupos tiveram comportamento semelhante quanto à resposta clínica final. A análise (U-Mann-Whitney) mostrou que os grupos provêm da mesma população. Embora ocorram diferenças quanto a individualidades das variáveis analisadas, a análise discriminante efetuada mostrou-se não significativa, nas doenças de longa evolução.


A restrospective survey of the records of 33 patients with generalized aquired myasthenia gravis treated at Hospital das Clínicas, Medical School of The University of São Paulo, Brazil and in private practice, with and without thymectomy, is reported. Nineteen were thymectomized and 14 non operated. Both groups were demographically homogeneous and were followed from 8 to 24 years. Parameters for evaluating the natural history of disease and other ones for a comparative analysis of the improvement or remissions were established. The influence of the individualized therapy was evaluated by McNemar test (x²); the U-Mann-Whitney was used for evalution of the populational behavior groups; variable parameter with possible influence in the useful life were studied by multivariate analysis. The difference of distance between both groups was not significant: (D2= 0.08894); T2 -7.17 (Hottelling test). There were differences of the isolate clinic parameter responses in both groups, but the global analysis of the parameters did not permit to discriminate them, possibly because of interaction of the parameters influencing the analytic result. Inspite of the fact that superposition of the parameter occured when analysed for a long period, we believe the early thymectomy to be benefic. Our patients who had their operation at a younger age and specially those with recent disease had a maximum improvement.


Tratamento conservador e timectomia na miastenia grave: resultados avaliados a curto e longo prazos

Myasthenia gravis treated with and without thymectomy: short and long term results

José Lamartine de AssisI; Paulo E. MarchioriII; Antonio A. ZambónIII; Milberto ScaffI

IProfessor Adjunto - Trabalho da Clínica Neurológica da Faculdade de Medicina da Universidade de São Paulo (apresentado no XII Congresso da Academia Brasileira de Neurologia. Belo Horizonte, MG, setembro de 1986)

IIProfessor Assistente Doutor - Trabalho da Clínica Neurológica da Faculdade de Medicina da Universidade de São Paulo (apresentado no XII Congresso da Academia Brasileira de Neurologia. Belo Horizonte, MG, setembro de 1986)

IIIMédico-Assistente - Trabalho da Clínica Neurológica da Faculdade de Medicina da Universidade de São Paulo (apresentado no XII Congresso da Academia Brasileira de Neurologia. Belo Horizonte, MG, setembro de 1986)

RESUMO

Dois grupos de pacientes com miastenia grave adquirida foram analisados evolutivamente, para se verificar a influência da terapêutica no comportamento da doença. Dezenove foram timectomizados (grupo I) e 14 tratados por métodos conservadores (grupo II). Ambos os grupos foram homogeneizados demograficamente. Estabeleceram-se parâmetros que pudessem avaliar a história natural da doença e variáveis com o objetivo maior de análise comparativa na recuperação dos pacientes. Houve influência significativa quanto à utilização de quaisquer terapêuticas individualmente. Ambos os grupos tiveram comportamento semelhante quanto à resposta clínica final. A análise (U-Mann-Whitney) mostrou que os grupos provêm da mesma população. Embora ocorram diferenças quanto a individualidades das variáveis analisadas, a análise discriminante efetuada mostrou-se não significativa, nas doenças de longa evolução.

SUMMARY

A restrospective survey of the records of 33 patients with generalized aquired myasthenia gravis treated at Hospital das Clínicas, Medical School of The University of São Paulo, Brazil and in private practice, with and without thymectomy, is reported. Nineteen were thymectomized and 14 non operated. Both groups were demographically homogeneous and were followed from 8 to 24 years. Parameters for evaluating the natural history of disease and other ones for a comparative analysis of the improvement or remissions were established. The influence of the individualized therapy was evaluated by McNemar test (x2); the U-Mann-Whitney was used for evalution of the populational behavior groups; variable parameter with possible influence in the useful life were studied by multivariate analysis. The difference of distance between both groups was not significant: (D2= 0.08894); T2 -7.17 (Hottelling test). There were differences of the isolate clinic parameter responses in both groups, but the global analysis of the parameters did not permit to discriminate them, possibly because of interaction of the parameters influencing the analytic result. Inspite of the fact that superposition of the parameter occured when analysed for a long period, we believe the early thymectomy to be benefic. Our patients who had their operation at a younger age and specially those with recent disease had a maximum improvement.

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Departamento de Neurologia, FMUSP - Caixa Postal 3461 - 01000 - São Paulo, SP -Brasil.

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Datas de Publicação

  • Publicação nesta coleção
    22 Jun 2011
  • Data do Fascículo
    Jun 1987
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