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Improved outcome of childhood acute myeloid leukemia in an Eastern European country: Lithuanian experience

Kairiene, Igne ; Pasauliene, Ramune ; Lipunova, Nadezda ; Vaitkeviciene, Goda ; Rageliene, Lina ; Rascon, Jelena

European Journal of Pediatrics, 2017, Vol.176(10), pp.1329-1337 [Periódico revisado por pares]

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  • Título:
    Improved outcome of childhood acute myeloid leukemia in an Eastern European country: Lithuanian experience
  • Autor: Kairiene, Igne ; Pasauliene, Ramune ; Lipunova, Nadezda ; Vaitkeviciene, Goda ; Rageliene, Lina ; Rascon, Jelena
  • Assuntos: Childhood acute myeloid leukemia ; Survival rates ; Improvement ; Eastern Europe
  • É parte de: European Journal of Pediatrics, 2017, Vol.176(10), pp.1329-1337
  • Descrição: The reported treatment outcomes of children treated for cancer in Eastern European countries are inferior to those in Northern/Western Europe. We hypothesized that recent survival rates could be comparable to the current standards and performed a population-based analysis of treatment outcome of childhood acute myeloid leukemia (AML) in Lithuania, a small Eastern European country. Children < 18 years old who were treated for AML from 2000 to 2013 were included ( n  = 54). Estimates of 5-year event-free (EFS 5y ) and overall survival (OS 5y ) rates were analyzed. Comparing periods 2000–2006 ( n  = 32) and 2007–2013 ( n  = 22), the EFS 5y improved from 31 to 63% ( p  = 0.04), and the OS 5y improved from 31 to 72% ( p  = 0.02) because of reductions in toxicity-related mortality (42 vs. 15%, p  = 0.08) and relapse (43 vs. 25%, p  = 0.08). The most significant improvement was demonstrated in high-risk patients (OS 5y improved from 26 to 75%, p  = 0.02) who benefited from hematopoietic stem cell transplantation: the post-transplant EFS 5y increased from 13 to 86% ( p  = 0.01). Conclusions : The current survival rate of Lithuanian children treated for AML was comparable to the expected rate in other parts of Europe. What is Known: • In the last three decades, significant improvement has been achieved in treating childhood cancer, with an overall survival (OS) rate of > 80% in high-income countries. The difference in survival rates between Northern/Western and Eastern European countries as well as between high- and middle-/low-income countries is as much as 20%. Recently, the 5-year event-free survival rate of acute myeloid leukemia (AML) has reached > 60% in high-income countries. The survival rates for myeloproliferative diseases were the lowest in Eastern European countries. • The reported inferior survival rates were calculated based on outcome data of patients treated until 2007. The recent survival rates in Eastern European countries are unknown. What is New: • Being a small Eastern European country, Lithuania has experienced good economic growth during the last decade. We hypothesized that economic growth and gain of experience could result in better survival rates of children treated for cancer in our country in recent years. • A population-based analysis of treatment outcome of childhood AML treated in Lithuania in the recent years was performed for the first time. The survival rates of childhood AML in Lithuania are comparable to those of other high-income countries. Current survival rates of children treated for cancer in Eastern European countries could be comparable to the best current standards contributing to better European survival rates of childhood cancer in general.
  • Idioma: Inglês

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