%0 Journal Article %T Sputum interleukin-6 level as a marker of severity during acute chest syndrome in children with sickle cell disease. %A Mayrand L %A Elie J %A Pinhas Y %A Rignault-Bricard R %A Taylor M %A Brice J %A de Montalembert M %A Heilbronner C %A Beranger A %A Angyalosy S %A Chhun S %A Maciel TT %A Hermine O %A Allali S %J Br J Haematol %V 205 %N 1 %D 2024 Jul 23 %M 38783629 %F 8.615 %R 10.1111/bjh.19561 %X Acute chest syndrome (ACS) is a leading cause of morbimortality in sickle cell disease (SCD). In this prospective observational study, we investigated sputum interleukin-6 (IL-6) level as an ACS severity marker during 30 ACS episodes in 26 SCD children. Sputum IL-6 levels measured within the first 72 h of hospitalisation for ACS were significantly higher in patients with oxygen requirement ≥2 L/min, ventilation (invasive and/or non-invasive) length ≥5 days, bilateral and/or extensive opacities on chest X-ray or erythrocytapheresis requirement. Sputum IL-6 could serve as an ACS severity marker to help identify patients requiring targeted anti-inflammatory treatments such as tocilizumab.