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Comparison of diagnostic criteria for acute kidney injury in critically ill children: a multicenter cohort study
Critical Care ( IF 8.8 ) Pub Date : 2022-07-07 , DOI: 10.1186/s13054-022-04083-0
Yuxian Kuai 1 , Min Li 2 , Jiao Chen 3 , Zhen Jiang 4 , Zhenjiang Bai 3 , Hui Huang 1 , Lin Wei 1 , Ning Liu 1 , Xiaozhong Li 1 , Guoping Lu 5 , Yanhong Li 1, 6
Affiliation  

Substantial interstudy heterogeneity exists in defining acute kidney injury (AKI) and baseline serum creatinine (SCr). This study assessed AKI incidence and its association with pediatric intensive care unit (PICU) mortality under different AKI and baseline SCr definitions to determine the preferable approach for diagnosing pediatric AKI. In this multicenter prospective observational cohort study, AKI was defined and staged according to the Kidney Disease: Improving Global Outcome (KDIGO), modified KDIGO, and pediatric reference change value optimized for AKI (pROCK) definitions. The baseline SCr was calculated based on the Schwartz formula or estimated as the upper normative value (NormsMax), admission SCr (AdmSCr) and modified AdmSCr. The impacts of different AKI definitions and baseline SCr estimation methods on AKI incidence, severity distribution and AKI outcome were evaluated. Different AKI definitions and baseline SCr estimates led to differences in AKI incidence, from 6.8 to 25.7%; patients with AKI across all definitions had higher PICU mortality ranged from 19.0 to 35.4%. A higher AKI incidence (25.7%) but lower mortality (19.0%) was observed based on the Schwartz according to the KDIGO definition, which however was overcome by modified KDIGO (AKI incidence: 16.3%, PICU mortality: 26.1%). Furthermore, for the modified KDIGO, the consistencies of AKI stages between different baseline SCr estimation methods were all strong with the concordance rates > 90.0% and weighted kappa values > 0.8, and PICU mortality increased pursuant to staging based on the Schwartz. When the NormsMax was used, the KDIGO and modified KDIGO led to an identical AKI incidence (13.6%), but PICU mortality did not differ among AKI stages. For the pROCK, PICU mortality did not increase pursuant to staging and AKI stage 3 was not associated with mortality after adjustment for confounders. The AKI incidence and staging vary depending on the definition and baseline SCr estimation method used. The modified KDIGO definition based on the Schwartz method leads AKI to be highly relevant to PICU mortality, suggesting that it may be the preferable approach for diagnosing AKI in critically ill children and provides promise for improving clinicians’ ability to diagnose pediatric AKI.

中文翻译:

重症儿童急性肾损伤诊断标准的比较:一项多中心队列研究

在定义急性肾损伤 (AKI) 和基线血清肌酐 (SCr) 方面存在大量研究间异质性。本研究评估了不同 AKI 和基线 SCr 定义下的 AKI 发病率及其与儿科重症监护病房 (PICU) 死亡率的关系,以确定诊断儿科 AKI 的优选方法。在这项多中心前瞻性观察性队列研究中,AKI 的定义和分期是根据肾脏疾病:改善全球结局 (KDIGO)、修改后的 KDIGO 和针对 AKI (pROCK) 定义优化的儿科参考变化值。基线 SCr 基于 Schwartz 公式计算或估计为上规范值 (NormsMax)、入院 SCr (AdmSCr) 和修改后的 AdmSCr。不同 AKI 定义和基线 SCr 估计方法对 AKI 发病率的影响,评估了严重程度分布和 AKI 结果。不同的 AKI 定义和基线 SCr 估计导致 AKI 发生率的差异,从 6.8% 到 25.7%;所有定义的 AKI 患者的 PICU 死亡率较高,范围为 19.0% 至 35.4%。根据 KDIGO 定义,基于 Schwartz 的定义,AKI 发生率较高(25.7%)但死亡率较低(19.0%),但被改良的 KDIGO 克服(AKI 发生率:16.3%,PICU 死亡率:26.1%)。此外,对于改良的 KDIGO,不同基线 SCr 估计方法之间 AKI 分期的一致性都很强,一致率 > 90.0% 和加权 kappa 值 > 0.8,并且 PICU 死亡率随着基于 Schwartz 的分期而增加。当使用 NormsMax 时,KDIGO 和改良的 KDIGO 导致相同的 AKI 发生率(13.6%),但 PICU 死亡率在 AKI 分期之间没有差异。对于 pROCK,PICU 死亡率并未随着分期而增加,并且在调整混杂因素后,AKI 3 期与死亡率无关。AKI 发病率和分期因定义和使用的基线 SCr 估计方法而异。基于 Schwartz 方法的修改后的 KDIGO 定义导致 AKI 与 PICU 死亡率高度相关,表明它可能是诊断危重儿童 AKI 的优选方法,并为提高临床医生诊断儿科 AKI 的能力提供了希望。AKI 发病率和分期因定义和使用的基线 SCr 估计方法而异。基于 Schwartz 方法的修改后的 KDIGO 定义导致 AKI 与 PICU 死亡率高度相关,表明它可能是诊断危重儿童 AKI 的优选方法,并为提高临床医生诊断儿科 AKI 的能力提供了希望。AKI 发病率和分期因定义和使用的基线 SCr 估计方法而异。基于 Schwartz 方法的修改后的 KDIGO 定义导致 AKI 与 PICU 死亡率高度相关,表明它可能是诊断危重儿童 AKI 的优选方法,并为提高临床医生诊断儿科 AKI 的能力提供了希望。
更新日期:2022-07-08
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