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

Background. Previous reports have shown that undernourished children with a cute lymphoblastic leukemia (ALL) have a poorer long-term survival as compa red with children with normal nourishment status, It has been shown that bo th 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 articles have analyzed the early mortality rate of these patients, Methods. We carried out a case-control study, and have studied the effect o f severe malnutrition on the mortality of 17 children with ALL during the i nitial induction-to-remission phase of the treatment. These 17 cases were c ompared 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%: 0.55-11.89) in undernourished children with ALL than in those children with normal nouris hment status. The risk of death increased with the severity of undernourish ment (p = 0.04). Conclusions. These data confirm the prognostic value of malnutrition in chi ldren with ALL and suggest that undernourishment may also influence early m ortality during the induction-to-remission phase of the treatment, (C) 1999 IMSS. Published by Elsevier Science Inc.