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1.贵州医科大学附属医院急诊科,贵阳 550004
2.贵航贵阳医院骨科,贵阳 550025
3.陆军军医大学大坪医院创伤与化学中毒全国重点实验室,重庆 400042
洪陈芳,Email:2024110020227@stu.gmc.edu.cn,研究方向:脓毒症急性肺损伤的研究。
曾 灵,Email:zengling_1025@tmmu.edu.cn。
收稿:2025-07-28,
修回:2026-01-12,
录用:2026-01-20,
纸质出版:2026-06-28
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洪陈芳,徐哲,李卓杰,等.早期红细胞分布宽度与脓毒症患者启动连续性肾脏替代治疗的关系研究[J].重庆医科大学学报,2026,51(6):792-800.
Hong Chenfang,Xu Zhe,Li Zhuojie,et al.Association of early red blood cell distribution width with initiation of continuous renal replacement therapy in patients with sepsis[J].Journal of Chongqing Medical University,2026,51(6):792-800.
洪陈芳,徐哲,李卓杰,等.早期红细胞分布宽度与脓毒症患者启动连续性肾脏替代治疗的关系研究[J].重庆医科大学学报,2026,51(6):792-800. DOI: 10.13406/j.cnki.cyxb.004051.
Hong Chenfang,Xu Zhe,Li Zhuojie,et al.Association of early red blood cell distribution width with initiation of continuous renal replacement therapy in patients with sepsis[J].Journal of Chongqing Medical University,2026,51(6):792-800. DOI: 10.13406/j.cnki.cyxb.004051.
目的
2
探讨红细胞分布宽度(red blood cell distribution width,RDW)与脓毒症患者启动连续性肾脏替代治疗(continuous renal replacement therapy,CRRT)的关系。
方法
2
基于美国重症监护医学信息数据库(Medical Information Mart for Intensive Care,MIMIC)-Ⅳ 3.0,纳入符合Sepsis-3标准的脓毒症患者(
n
=17 216)。RDW按四分位数分为Q1、Q2、Q3、Q4组,采用二元logistic回归分析RDW对CRRT启动的影响,亚组分析及受试者工作特征曲线分析(receiver operating characteristic,ROC)评估其在不同人群中的预测效能,限制性立方样条(restricted cubic spline,RCS)对RDW进行阈值分析。
结果
2
随RDW水平的升高,脓毒症患者CRRT启动率明显增加(
χ
²=425.978,
P
<
0.001),Q1、Q2、Q3、Q4组CRRT启动率分别为2.0%、3.3%、5.7%、11.5%。logistic趋势回归分析显示,随RDW水平的增加,RDW与CRRT启动间呈递增趋势(
P
=0.007),以Q4组为参照,Q1、Q2及Q3组的比值比(odds ratio,
OR
)及95%置信区间(confidence interval,CI)分别为0.60(95%CI=0.43~0.84),0.69(95%CI=0.52~0.90)及0.78(95%CI=0.62~0.98)。亚组分析结果显示,RDW在不同年龄、高血压及非高血压、肝硬化及非肝硬化、心力衰竭及非心力衰竭、脓毒性休克及非脓毒性休克人群中均存在显著的交互作用(
P
<
0.05)。ROC曲线分析显示,RDW在年轻(
<
65岁)[0.73(95%CI=0.72~0.74)]、非心力衰竭[0.73(95%CI=0.72~0.74)]及非脓毒性休克[0.70(95%CI=0.69~0.71)]人群中具有更大的曲线下面积(
P
<
0.05)。RCS分析显示,RDW与脓毒症患者CRRT启动呈非线性关系(
P
nonlinear
<
0.001),当 RDW
>
14.25%(
OR
>
1)时,CRRT启动风险明显增加(
P
<
0.001)。
结论
2
RDW是脓毒症患者启动CRRT的重要危险因素,其在年轻(<65岁),非心力衰竭以及非脓毒性休克的患者群体中具有更高的应用价值,可以辅助临床对CRRT高风险人群进行分层管理。
Objective
2
To investigate the association between red blood cell distribution width (RDW) and initiation of continuous renal replacement therapy(CRRT) in patients with sepsis.
Methods
2
A total of 17 216 patients who met the Sepsis-3 criteria were included based on Medical Information Mart for Intensive Care-Ⅳ 3.0,and RDW was categorized into quartiles(Q1,Q2,Q3,and Q4). A binary logistic regression analysis was used to investigate the influence of RDW on CRRT initiation; subgroup analyses and the receiver operating characteristic(ROC) curves were used to evaluate the predictive performance of RDW across different populations; the restricted cubic spline(RCS) analysis was used to determine the threshold of RDW.
Results
2
The initiation rate of CRRT increased significantly with increase in RDW(
χ
²=425.978,
P
<
0.001),and the initiation rates of CRRT were 2.0%,3.3%,5.7%,and 11.5%,respectively,in groups Q1,Q2,Q3,and Q4. The logistic trend analysis showed an increasing trend in the association between RDW and CRRT initiation(
P
=0.007),and compared with group Q4,groups Q1,Q2,and Q3 had an odds ratio(
OR
) of 0.60 (95%CI=0.43-0.84),0.69(95%CI=0.52-0.90),and 0.78(95%CI=0.62-0.98),respectively. Subgroup analyses demonstrated significant interactions between RDW and age,hypertension status, cirrhosis status, heart failure status, and septic shock status(
P
<
0.05). The ROC curve analysis showed that RDW had a larger area under the ROC curve(AUC) in the patients aged
<
65 years(AUC=0.73,95%CI=0.72-0.74,
P
<
0.05),those without heart failure(AUC=0.73,95%CI=0.72-0.74,
P
<
0.05),and those without septic shock(AUC=0.70,95%CI=0.69-0.71,
P
<
0.05). The RCS analysis showed a non-linear relationship between RDW and CRRT initiation(
P
nonlinear
<
0.001),and when RDW exceeded 14.25%,there was a significant increase in the risk of initiating CRRT(
OR
>
1,
P
<
0.001).
Conclusion
2
RDW is an important risk factor for initiating CRRT in patients with sepsis,and it has a higher application value in the patients aged <65 years and those without heart failure or septic shock and can assist physicians in the stratification of the population at a high risk of CRRT.
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