RESUMO
Objective: To explore the prognostic capacity of RALE scoring system in children with hematologic malignancies complicated with acute respiratory distress syndrome (ARDS). Methods: The clinical data were retrospectively analyzed of 57 ARDS child patients complicated with hematologic malignancies in pediatric intensive care unit (PICU) from Jan. 2014 to Jun. 2018. According to the therapeutic outcome within 28 days, they were divided into survival group (n=23) and non-survival group (n=34). The clinical features of the two groups were compared, and the relativity between RALE score and oxygenation index (P/F value) and the prognostic capacity of RALE score for ARDS were analyzed. Results: For the 57 child patients, the D1 P/F value was lower in non-survival group [116.0(70.0, 192.0)] than in the survival group [189.5(136.5, 251.3)], while the D1 pedicatic risk of mortality score (PRISM) HI, D1 RALE score and D3-D1 RALE score were higher in non-survival group [10.0(8.0, 16.0), 27.0(25.0, 37.0) and 5(0, 8), respectively] than in the survival group [7.6(4.0, 13.4), 24.0(13.8, 35.3) and -3.5(-7, 1), respectively]. The D1 RALE score was negatively correlated with the D1 P/F value (r=-0.831, P<0.001). A larger value of D3-D1 RALE score was an independent risk factor for 28 day mortality. The survival rate was higher in children when D1 RALE score ≤23 and the D3-D1 RALE score ≤-3 at D28. Conclusion: The RALE score can reflect the oxygenation status of ARDS, which is helpful for risk stratification and screening the high-risk patients.