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Main Authors: Hideyuki Hawaka, Tomoyuki Shimokaze, Tomoko Yokosuka, Katsuaki Toyoshima, Tomoko Saito, Hiroaki Goto
Format: Artículo Open Access
Published: Wiley 2025
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Online Access:https://onlinelibrary.wiley.com/doi/10.1002/pbc.32064
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author Hideyuki Hawaka
Tomoyuki Shimokaze
Tomoko Yokosuka
Katsuaki Toyoshima
Tomoko Saito
Hiroaki Goto
author_facet Hideyuki Hawaka
Tomoyuki Shimokaze
Tomoko Yokosuka
Katsuaki Toyoshima
Tomoko Saito
Hiroaki Goto
Hideyuki Hawaka
Tomoyuki Shimokaze
Tomoko Yokosuka
Katsuaki Toyoshima
Tomoko Saito
Hiroaki Goto
collection Wiley Open Access
contents Changes in Blood Test Indices of Infants With Down Syndrome‐Associated Transient Abnormal Myelopoiesis Hideyuki Hawaka Tomoyuki Shimokaze Tomoko Yokosuka Katsuaki Toyoshima Tomoko Saito Hiroaki Goto Pediatric Blood & Cancer ABSTRACT Background Approximately 20% of infants with Down syndrome‐associated transient abnormal myelopoiesis (TAM) die at an early age, mainly because of liver failure. Objective To identify post‐diagnosis changes in blood test indices that could predict TAM‐related deaths as early as the postnatal period. Methods/Results This was a single‐center retrospective study. Of the 505 children with Down syndrome admitted to our hospital from 1992 to 2024, we studied 12 infants with TAM‐related death and 39 survivors. In the death and survival groups, the median gestational ages were 34.9 and 37.1 weeks, respectively ( p = 0.146). At birth, the white blood cell (WBC) counts were 99.2 and 41.7 × 10 9 /L ( p = 0.027), and the serum direct bilirubin (D‐Bil) concentrations were 20 and 17 µmol/L ( p = 0.45), respectively. After the first week of age, the WBC counts, blast percentages, platelet counts, and serum alanine aminotransferase and aspartate aminotransferase concentrations were similar between the groups. At 1 week of age, the serum D‐Bil concentrations were 32 and 21 µmol/L ( p = 0.007), respectively. At 2 weeks, they were 94 and 27 µmol/L ( p < 0.001), respectively. The area under the receiver operating characteristic curve for the ability of serum D‐Bil at 2 weeks to predict death was 0.94, with a threshold of ≥51 µmol/L (approximately 3.0 mg/dL) yielding a sensitivity of 1.00 and a specificity of 0.78. Conclusion A serum D‐Bil concentration of ≥51 µmol/L at 2 weeks of age may serve as a useful predictor of TAM‐related death. 10.1002/pbc.32064 http://onlinelibrary.wiley.com/termsAndConditions#vor
doi_str_mv 10.1002/pbc.32064
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institution Wiley Open Access
license_str_mv http://onlinelibrary.wiley.com/termsAndConditions#vor
publishDate 2025
publisher Wiley
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spellingShingle Changes in Blood Test Indices of Infants With Down Syndrome‐Associated Transient Abnormal Myelopoiesis
Hideyuki Hawaka
Tomoyuki Shimokaze
Tomoko Yokosuka
Katsuaki Toyoshima
Tomoko Saito
Hiroaki Goto
Pediatric Blood & Cancer
Changes in Blood Test Indices of Infants With Down Syndrome‐Associated Transient Abnormal Myelopoiesis Hideyuki Hawaka Tomoyuki Shimokaze Tomoko Yokosuka Katsuaki Toyoshima Tomoko Saito Hiroaki Goto Pediatric Blood & Cancer ABSTRACT Background Approximately 20% of infants with Down syndrome‐associated transient abnormal myelopoiesis (TAM) die at an early age, mainly because of liver failure. Objective To identify post‐diagnosis changes in blood test indices that could predict TAM‐related deaths as early as the postnatal period. Methods/Results This was a single‐center retrospective study. Of the 505 children with Down syndrome admitted to our hospital from 1992 to 2024, we studied 12 infants with TAM‐related death and 39 survivors. In the death and survival groups, the median gestational ages were 34.9 and 37.1 weeks, respectively ( p = 0.146). At birth, the white blood cell (WBC) counts were 99.2 and 41.7 × 10 9 /L ( p = 0.027), and the serum direct bilirubin (D‐Bil) concentrations were 20 and 17 µmol/L ( p = 0.45), respectively. After the first week of age, the WBC counts, blast percentages, platelet counts, and serum alanine aminotransferase and aspartate aminotransferase concentrations were similar between the groups. At 1 week of age, the serum D‐Bil concentrations were 32 and 21 µmol/L ( p = 0.007), respectively. At 2 weeks, they were 94 and 27 µmol/L ( p < 0.001), respectively. The area under the receiver operating characteristic curve for the ability of serum D‐Bil at 2 weeks to predict death was 0.94, with a threshold of ≥51 µmol/L (approximately 3.0 mg/dL) yielding a sensitivity of 1.00 and a specificity of 0.78. Conclusion A serum D‐Bil concentration of ≥51 µmol/L at 2 weeks of age may serve as a useful predictor of TAM‐related death. 10.1002/pbc.32064 http://onlinelibrary.wiley.com/termsAndConditions#vor
title Changes in Blood Test Indices of Infants With Down Syndrome‐Associated Transient Abnormal Myelopoiesis
topic Pediatric Blood & Cancer
url https://onlinelibrary.wiley.com/doi/10.1002/pbc.32064