Crit Care Med:评估ICU出院患者的预后—血清半胱氨酸蛋白酶抑制剂C与肌酐谁更强?

2017-06-17 MedSci MedSci原创

尽管慢性肾脏疾病与患者生存之间有很强的相关性,但是,严重疾病后的肾脏评估却很少进行。在医院外,通过血清半胱氨酸蛋白酶抑制剂C比通过肌酐评估的肾功能障碍与死亡率更为密切。在严重疾病的生存者中,肌酐与患者的长期死亡率之间的关系可能特别弱。近期,一篇发表在杂志Crit Care Med上的文章进行了回顾性观察队列研究。在3,077名成人ICU幸存者中,研究者们比较了ICU患者中排出的半胱氨酸蛋白酶抑制剂

尽管慢性肾脏疾病与患者生存之间有很强的相关性,但是,严重疾病后的肾脏评估却很少进行。在医院外,通过血清半胱氨酸蛋白酶抑制剂C比通过肌酐评估的肾功能障碍与死亡率更为密切。在严重疾病的生存者中,肌酐与患者的长期死亡率之间的关系可能特别弱。


近期,一篇发表在杂志Crit Care Med上的文章进行了回顾性观察队列研究。在3,077名成人ICU幸存者中,研究者们比较了ICU患者中排出的半胱氨酸蛋白酶抑制剂C和肌酐及其与1年死亡率的关系。排除标准为,ICU出院72小时内死亡,ICU停留时间不超过24小时,终末期肾病患者。

在ICU入院期间,血清半胱氨酸蛋白酶抑制剂C和肌酐发生了偏离,与肌酐估算的肾小球滤过率相比,使用半胱氨酸蛋白酶抑制剂C估计的肾小球滤过率小于60 mL/min/1.73 m,44% vs. 26%。
在743例无急性肾损伤的患者中,ICU出院后的肾功能应反映当时的基线,通过肌酐估计的肾小球滤过率一直高于随访的肌酐估计的肾小球滤过率,而通过半胱氨酸蛋白酶抑制剂C估计的肾小球滤过率与随后的慢性肾脏疾病状态匹配良好。

至1年的时间,535名患者(17.4%)死亡。在对年龄、性别和合并症进行的生存分析中,半胱氨酸蛋白酶抑制剂C与死亡率增加呈线性相关,风险比等于1.78(95%CI,1.46-2.18)。相反,肌酐与死亡率呈现J型关系,因此在大多数患者中,与生存率无显着相关性,风险比等于1.03(0.87-1.2)。在调整肌酐和半胱氨酸蛋白酶抑制剂C水平后,较高的出院肌酐水平与长期死亡率较低有关。

此项研究表明:与肌酐相反,半胱氨酸蛋白酶抑制剂C与长期死亡率一致,能够识别高危和低危患者,与随访肾功能有更好的相关性。相反,相对于半胱氨酸蛋白酶抑制剂C而言,较低的肌酐显示出不利的预后。半胱氨酸蛋白酶抑制剂C值得进一步的研究,明确其是否可以作为严重疾病后评估肾功能的更有意义的测量指标。

原始出处:
Ravn B, Prowle JR, et al. Superiority of Serum Cystatin C Over Creatinine in Prediction of Long-Term Prognosis at Discharge From ICU. Crit Care Med. 2017 Jun 13. doi: 10.1097/CCM.0000000000002537.


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    2017-08-27 jklm09
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    2017-06-19 俅侠
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    2017-06-17 Y—xianghai

    学习了新知识

    0

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    2017-06-17 有备才能无患

    相对于半胱氨酸蛋白酶抑制剂C而言,较低的肌酐显示出不利的预后。半胱氨酸蛋白酶抑制剂C值得进一步的研究,明确其是否可以作为严重疾病后评估肾功能的更有意义的测量指标。

    0

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迈克尔·G·史莱派克等 美国马里兰州巴尔的摩市慢性肾病预后联盟数据协调中心等 背景 血肌酐检测加上半胱氨酸蛋白酶抑制剂C检测可改善肾小球滤过率估计值(eGFR)的准确性,但在不同的人群中,其在慢性肾脏病检出、分期和危险分类方面的作用尚不清楚。 方法 我们对11项一般人群的研究(90750名受试者)和5项有血肌酐和半胱氨酸蛋白酶抑制剂C标准化检测值的慢性肾脏病队列