PMID- 31613846 OWN - NLM STAT- MEDLINE DCOM- 20201230 LR - 20210209 IS - 1536-3678 (Electronic) IS - 1077-4114 (Linking) VI - 42 IP - 7 DP - 2020 Oct TI - Early Mortality in Children and Adolescents with Acute Promyelocytic Leukemia: Experience of the Boldrini Children's Center. PG - e641-e646 LID - 10.1097/MPH.0000000000001601 [doi] AB - INTRODUCTION: Acute promyelocytic leukemia (APL) is currently considered a highly curable disease. However, an early death (ED) remains one of the main causes of APL treatment failure. PATIENTS AND METHODS: In this retrospective study, we aimed to analyze the clinical characteristics of 91 children and adolescents with APL, who were consecutively registered at the (name of institution removed) Children's Center from January 1, 1998 to December 31, 2017. Data were assessed for age, sex, ethnicity, body mass index percentile, initial white blood cell count, peripheral blood blast count, and platelet count, hemoglobin value, partial thromboplastin time, prothrombin time, fibrinogen level, serum creatinine level, APL morphology subtype (classic vs. hypogranular variant M3v), and FLT3 gene mutations. RESULTS: ED occurred in 12 of 91 (13.1%) patients and was mainly related to cerebral thromboembolism. Overall 66% of deaths occurred in the second week after diagnosis. ED was associated with white blood cell >/=10x10 cells/L (odds ratio of 8.44; 95% confidence interval [CI]=1.48-48.26; P=0.0016), initial promyelocytes >/=20x10/L (odds ratio of 9.29; 95% CI=2.45-35.8; P=0.001), morphologic subtype M3v (odds ratio of 3.63; 95% CI=1.04-12.64; P=0.043), and creatinine serum levels >0.7 mg/dL (odds ratio of 6.78; 95% CI=1.83-25.13; P=0.004). In multivariate analyses, ED was associated with initial peripheral promyelocytes >/=20x10 blasts/L and creatinine serum levels >0.7 mg/dL. CONCLUSIONS: EDs were mainly caused by thrombohemorrhagic events and occurred within the second week after diagnosis. High peripheral promyelocytes and creatinine levels were predictors of ED in APL. FAU - de Azevedo, Amilcar C AU - de Azevedo AC AD - Boldrini Children's Center. AD - Graduate Program in Child and Adolescent Health. FAU - Matsuda, Eduardo AU - Matsuda E AD - Boldrini Children's Center. FAU - Cervellini, Julia Y AU - Cervellini JY AD - Boldrini Children's Center. FAU - Prandi, Larissa R AU - Prandi LR AD - Boldrini Children's Center. FAU - Omae, Cristiane AU - Omae C AD - Boldrini Children's Center. FAU - Jotta, Patricia Y AU - Jotta PY AD - Boldrini Children's Center. FAU - Pereira, Ricardo M AU - Pereira RM AD - Department of Pediatrics, Medical Sciences Faculty, State University of Campinas, Campinas, SP, Brazil. FAU - Brandalise, Silvia R AU - Brandalise SR AD - Boldrini Children's Center. LA - eng PT - Journal Article PL - United States TA - J Pediatr Hematol Oncol JT - Journal of pediatric hematology/oncology JID - 9505928 SB - IM MH - Adolescent MH - Child MH - Female MH - Humans MH - Leukemia, Promyelocytic, Acute/*mortality MH - Male MH - Retrospective Studies EDAT- 2019/10/16 06:00 MHDA- 2020/12/31 06:00 CRDT- 2019/10/16 06:00 PHST- 2019/10/16 06:00 [pubmed] PHST- 2020/12/31 06:00 [medline] PHST- 2019/10/16 06:00 [entrez] AID - 00043426-202010000-00031 [pii] AID - 10.1097/MPH.0000000000001601 [doi] PST - ppublish SO - J Pediatr Hematol Oncol. 2020 Oct;42(7):e641-e646. doi: 10.1097/MPH.0000000000001601.