INVESTIGATION OF PROGNOSTIC FACTORS IN LARGE-CELL LYMPHOMAS
MEDICINA CLINICA(1995)
Abstract
BACKGROUND: To carry out a study on the prognostic factors in large cell lymphomas (LCL) treated during the last decade and validate the International prognostic index (IPI). METHODS: One hundred twenty-four cases of newly diagnosed LCL, treated from 1978 to 1990, with a mean follow up of 27 months (1-142) were included in the study. The chemotherapy used was CHOP (65%), ProMACE-CytaBOM (17%) and others (C-MOPP, MACOP-B). RESULTS: Complete remission (CR) was achieved in 71% of the cases and partial In 11%. Logistic analysis allowed the identification of three adverse factors to CR: Ann Arbor stage III, IV (p = 0.004; odds ratio, OR = 0.19), elevated tumoral load (p = 0.006; OR = 0.22) and age greater than or equal to 60 years (p = 0.02; OR = 0.31). Recurrence free survival (RFS) at 3 years was 67% (CI 95%; 55-79) with the median not having been achieved. Cox analysis allowed the identification to the ECOG greater than or equal to 2 scale as the only independent adverse factor (p = 0.0006; RR = 4.85) while Ann Arbor staging demonstrated marginal influence (p = 0.08). Global survival (GS) at 5 years was 45% (CI 95%; 35.55) with a median of 38 months Multivariant analysis of independent adverse factors of GS were ECOG scale greater than or equal to 2 (p < 0.00001; RR = 6.07), Ann Arbor stage (p = 0.004; RR = 2.64) and hypoalbuminemia (p = 0.01; RR = 2.28). On Inclusion of therapeutic response (TR) In the analysis, the factors chosen ware absence of CR (p < 0.00001; RR = 9.58) and ECOG greater than or equal to 2 (p = 0.0004; RR = 4.24). CONCLUSIONS: Three variables evaluated at diagnosis, general state (ECOG), Ann Arbor stage and albumin, determined the prognosis In this series of large cell lymphoma. A prognostic model was designed from the same with three risk groups. The application of the international prognostic Index to this series separated the patients Into 4 groups of differentiated prognosis.
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