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Fatores prognósticos no Mieloma Múltiplo / Prognostic factors in Multiple Myeloma
Martinez, Gracia A.
  • Martinez, Gracia A; USP. FM. HC. Serviço de Hematologia. São Paulo. BR
Rev. bras. hematol. hemoter ; 29(1): 27-30, jan.-mar. 2007. tab
Article in Portuguese | LILACS | ID: lil-465692
RESUMO
Nos últimos dez anos, grandes mudanças ocorreram no tratamento do MM com a utilização de novas drogas. Frente a estas novas opções de tratamento é essencial reconhecermos parâmetros clínicos ou biológicos que orientem a melhor escolha terapêutica. Mais recentemente foi validado um novo e simples sistema de estadiamento, International Staging System (ISS), baseado nos valores dabeta2 microglobulina e albumina sérica. Os pacientes são classificados em três grupos de risco Estádio I beta2M <3,5 mg/dl e albumina > 3,5 g/dl. Mediana de sobrevida de 62 meses; Estádio II beta2 M <3,5 mg/l e albumina <3,5g/dl ou beta2 > 3,5 - < 5,5 mg/l. Mediana de sobrevida 49 meses; Estádio III beta2 > 5,5 mg/l. Mediana de sobrevida de 29 meses. Atualmente, a citogenética e achados moleculares estão sendo amplamente reconhecidos como fatores de prognóstico. A deleção do cromossomo 13/13q-, translocação t(4;14), deleção p53 e, mais recentemente, a amplificação da banda cromossômica 1q21 estão associadas a prognóstico reservado.
ABSTRACT
Over the last 10 years, great changes have occurred in the treatment of multiple myeloma (MM) due to the use of new drugs. Considering the new options, it is essential to recognize clinical and biological parameters to arrive at the best therapeutic choice. More recently the new International Staging System (ISS) for multiple myeloma was validated which utilizes two straight forward laboratory parameters the beta2 microglobulin (beta2M) and albumin levels. Stage I beta2M < 3.5 mg/L and albumin level > 3.5 g/dL with a median survival of 62 months; stage II beta2M < 3.5 and albumin < 3.5 g/dL or beta2M > 3.5 to < 5.5 g/dL with a median survival of 49 months; stage III > 5.5 g/dL with a median survival of 29 months. The importance of cytogenetics and molecular features as prognostic factors is being recognized. Deletion of chromosome 13 or 13q, the t(414) translocation, p53 deletion and amplification of chromosome band 1q21 are all associated with poor prognosis.
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Full text: Available Index: LILACS (Americas) Main subject: Prognosis / DNA, Neoplasm / Cytogenetics / Multiple Myeloma / Neoplasm Staging Type of study: Prognostic study Limits: Humans Language: Portuguese Journal: Rev. bras. hematol. hemoter Journal subject: Hematology Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: USP/BR

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Full text: Available Index: LILACS (Americas) Main subject: Prognosis / DNA, Neoplasm / Cytogenetics / Multiple Myeloma / Neoplasm Staging Type of study: Prognostic study Limits: Humans Language: Portuguese Journal: Rev. bras. hematol. hemoter Journal subject: Hematology Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: USP/BR