王善志 朱永俊 叶凤 李国铨 韦传娃 韩锋 梁海琴 钟良宝
[摘要] 目的 分析慢性腎脏病(CKD)3~5期未行肾脏替代治疗的患者血清超敏心肌肌钙蛋白I(cTnI)水平及其与肾脏相关指标的依存关系。 方法 选择2016年1月~2017年11月在海南医学院第一附属医院肾内科住院的CKD3~5期未行肾脏替代治疗,且排除严重心律失常、心肌梗死以及脓毒血症的患者180例,收集血清超敏cTnI并与CKD分期、肾小球滤过率(GFR)、年龄、血肌酐(Scr)、血尿素氮(BUN)、血胱抑素(CYS-C)及血白蛋白(ALB)进行统计分析。 结果 多个独立样本秩和检验结果显示,超敏cTnI在CKD3~5期检测水平不同,差异有统计学意义(P < 0.05)。Pearson双变量相关分析显示,超敏cTnI与CKD分期、GFR、CYS-C呈线性相关(P < 0.05),与Scr、BUN、ALB及年龄无线性相关关系(P > 0.05)。逐步多重线性回归分析显示,超敏cTnI回归方程Y = -0.043+0.023X(Y:cTnI,X:CKD3~5期)。 结论 可根据基于CKD分期的超敏cTnI回归方程校正cTnI在CKD3~5期患者中的参考值,进而为临床决策提供参考。
[关键词] 慢性肾脏病;心肌肌钙蛋白I;急性冠状动脉综合征;心肌梗死
[中图分类号] R692 [文献标识码] A [文章编号] 1673-7210(2018)05(c)-0069-03
Serum hypersensitivity cTnI level and its correlation with kidney related indicators in patients of chronic kidney disease from 3 to 5 stage
WANG Shanzhi1 ZHU Yongjun1 YE Feng2▲ LI Guoquan1 WEI Chuanwa1 HAN Feng2 LIANG Haiqin1 ZHONG Liangbao1
1.Department of Nephrology, the First Affiliated Hospital of Hainan Medical University, Hainan Province, Haikou 570100, China;2.Clinical Laboratory, the First Affiliated Hospital of Hainan Medical University, Hainan Province, Haikou 570100, China
[Abstract] Objective To analyze the level of serum hypersensitive cardiac troponin I (cTnI) in patients of chronic kidney disease (CKD) from 3 to 5 stage without renal replacement therapy. Methods A total of 180 patients of CKD from 3 to 5 stage without renal replacement therapy, severe arrhythmia, acute myocardial infarction and sepsis were selected in the First Affiliated Hospital of Hainan Medical University from January 2016 to November 2017. Then their serum hypersensitivity cTnI were collected, and the correlation between the level of serum hypersensitivity cTnI and glomerular filtration rate (GFR), age, serum creatinine (Scr), blood urea nitrogen (BUN), blood Cystatin-C (CYS-C) and blood albumin (ALB) were analyzed. Results The rank sum test of multiple independent samples showed that the level of serum hypersensitivity cTnI in patients of CKD from 3 to 5 stage without renal replacement therapy was different, and the difference was statistically significant (P < 0.05). Pearson bivariate correlation displayed hypersensitivity cTnI was linearly correlated with CKD staging, GFR and CYS-C (P < 0.05), and was not linearly correlated with Scr, BUN, ALB and age (P > 0.05). The stepwise multiple linear regression analysis showed that the hypersensitive cTnI regression equation was Y = -0.043+0.023X (Y:cTnI,X:CKD3~5). Conclusion The reference value of cTnI in the patients of CKD from 3 to 5 stage can be corrected according to the hypersensitive cTnI regression equation, and then it can be used as a reference for clinical decision of CKD.
[Key words] Chronic kidney disease; Hypersensitive cardiac troponin I; Acute coronary syndrome; Acute myocardial infarction
心血管疾病是终末期肾脏病患者死亡的主要原因之一[1-2],血清超敏心肌肌钙蛋白I(hypersensitive cardiac troponin I,cTnI)对诊断急性冠状动脉综合征(acute coronary syndrome,ACS),尤其是急性心肌梗死(acute myocardial infarction,AMI)具有高特异性和敏感性[3],但在临床实践中,3~5期慢性肾脏病(chronic kidney disease,CKD)患者的超敏cTnI升高水平与心血管事件多不相符,而如何区分ACS与非ACS是临床医生需要经常面对的问题,这使得临床医生在面对CKD患者cTnI升高但无胸痛、胸闷等症状时需要更加注意。本研究通过分析未行肾脏替代治疗且未发生过ACS的3~5期CKD患者血清cTnI水平以及与肾脏相关指标的依存关系,期望为临床决策给予理论支持与指导。……