Tumores Primários Superficiais de Alto Grau da Bexiga
Risco, recorrência e progressão
DOI:
https://doi.org/10.24915/aup.34.1-2.30Palavras-chave:
Carcinoma in Situ, Factores de Risco, Neoplasias da Bexiga Urinária, Prognóstico, Progressão da Doença, Recidiva Local de Neoplasia, Vacina BCGResumo
Objetivo: Caracterizar a população com tumores superficiais primários da bexiga de alto grau seguidos num Hospital Central Português e simultaneamente identificar as taxas de recorrência e progressão e respetivos fatores de risco.
Material e Métodos: O estudo incluiu 79 doentes diagnosticados com tumores superficiais primários da bexiga de alto grau na primeira resseção transuretral entre 2006 e 2010. Diversas variáveis foram analisadas para avaliar a sua importância prognóstica.
Resultados: Com um follow-up médio de 54 meses, 19 doentes (24,1%) recorreram, quatro (5,1%) progrediram para doença músculo-invasiva e dois (2,5%) foram submetidos a cistectomia radical. A duração do tratamento intravesical com bacillus Calmette-Guérin (BCG) foi o fator de prognóstico mais importante para a recorrência enquanto a presença de carcinoma in situ foi o fator de prognóstico mais importante para a progressão. A presença de doença residual na resseção transuretral-second-look mostrou reduzir a sobrevida livre de recorrência.
Conclusão: Na população estudada, as taxas de recorrência e progressão foram muito mais baixas do que as descritas na literatura. A presença de doença residual na resseção transuretral-second-look está associada com diminuição da sobrevida livre de recorrência enquanto a presença de carcinoma in situ está relacionado com maior risco de progressão para doença músculo-invasiva. A duração do tratamento com BCG parece diminuir o risco de recorrência.
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