Malnutrition in Childhood lymphoblastic leukemia: A predictor of Early mortality during the induction-to-remission phase of the treatment

RESUMO

Background. Previous reports have shown that undernourished children with acute lymphoblastic leukemia (ALL) have a poorer long-term survival as compared withchildren with normal nourishment status. It has been shown that both the relapse and mortality rates of undernourished children with ALL are higher during the continuation phase of the chemotherapy and are apparently related to a poor tolerance of ablative chemotherapy. No previous artichles have analyzed the aerly mortality rate of these patients. Methods. We carried out a case-control study, and have studied the effect of severe malnutrition on the mortality of 17 children with ALL during the initial induction-to-remission phase of the treatment. These 17 cases were compared with 76 controls who had survived at least the phases of induction and consolidation. Results. It was found that the chance of dying during the initial phase of the treatment was 2.6 times higher (confidence interval 95 percent 0.55-11.89) in undernourished children with ALL than in those children with normal nourishment status. The risk of death increades with the severity of undernorisment (p= 0.04). Conclusions. These data confirm the prognostic value of malnutrition in children with ALL and suggest that undernourishment may also influence aerly mortality during the induction-to-remission phase of the treatment