[Predictive value of early detection of hs-cTnI and sST2 for secondary cardiac damage in severe acute organophosphorus pesticide poisoning].

Objective: To investigate the value of high-sensitivity cardiac troponin I (hs-cTnI) and soluble suppression of tumorigenicity 2 (sST2) in predicting cardiac complications of severe acute organophosphorus pesticide poisoning (SAOPP) . Methods: All 274 SAOPP patients from September 2014 to February 2019 were selected. According to the results of hs-cTnI detection, the patients were divided into non-elevated troponin group (78 cases) and troponin elevation group (196 cases) at 1 hour after admission. 3 days after admission, there were 109 cases of complication and 165 cases of non-complication according to the presence or absence of cardiac complications. The changes of hs-cTnI, sST2, N-terminal B-type brain natriuretic peptide (NT proBNP) , acute physiology and chronic health (APACHE-Ⅱ) , cholinesterase activity, left ventricular ejection fraction (LVEF) , short axis shortening rate (FS) were observed and analyzed. The predictive value of hs-cTnI and sST2 were evaluated by receiver operating characteristic curve (ROC) analysis. Results: The sST2 level in patients with troponin elevation group was significantly higher than that in non-elevated troponin group (P<0.05) . Compared with the non-complication and non-elevated troponin group, the patients with non-complication and troponin elevation group had elevated hs-cTnI, sST2 and decreased cholinesterase (P<0.05) . Compared with other groups, the hs-cTnI, sST2, NT-proBNP, and APACHE-Ⅱ scores in the complication and troponin elevation group were significantly increased, and cholinesterase was significantly reduced (P<0.05) . In the non-complication group, LVEF and FS were in the normal range, and there was no significant difference between the groups (P>0.05) . Compared with other groups, the LVEF and FS of patients with elevated troponin in the complications group were significantly decreased (P<0.05) . Correlation analysis showed that hs-cTnI and sST2 were positively correlated in patients with SAOPP complications (r=0.725, P<0.01) . hs-cTnI, sST2 and APACHE-Ⅱ scores were positively correlated in the complications group (r=0.846, 0.885, P<0.01) . ROC results showed that the areas under the curve for predicting SAOPP secondary heart damage of hs-cTnI (1 hour after admission) and sST2 (3 days after admission) were 0.945 and 0.833, respectively. Conclusion: hs-cTnI and sST2 may have important clinical value in the early diagnosis and prognosis evaluation of patients with SAOPP secondary cardiac damage.目的： 探讨超敏肌钙蛋白I（hs-cTnI）和可溶性生长刺激基因表达蛋白2（sST2）对急性重度有机磷农药中毒（SAOPP）继发心脏损害的早期预测价值。 方法： 收集2014年9月至2019年2月衡水市人民医院SAOPP患者274例。根据入院后1 h hs-cTnI检测结果分为非肌钙蛋白升高组（78例）和肌钙蛋白升高组（196例）。依据入院后3 d有无出现心脏损害分为并发症组（109例）和非并发症组（165例）。观察hs-cTnI、sST2、N末端B型脑钠尿肽（NT-proBNP）、急性生理与慢性健康（APACHE-Ⅱ）评分、胆碱酯酶活力、左心室射血分数（LVEF）和短轴缩短率（FS）的变化情况，并进行相关性分析；采用受试者工作特征曲线（ROC）分析评估hs-cTnI、sST2对SAOPP患者继发心脏损害的预测价值。 结果： 肌钙蛋白升高组患者sST2水平明显高于非肌钙蛋白升高组（P<0.05）。与非并发症非肌钙蛋白升高组比较，非并发症肌钙蛋白升高组患者hs-cTnI、sST2升高，胆碱酯酶活力降低（P<0.05）。与其他各组比较，并发症肌钙蛋白升高组hs-cTnI、sST2、NT-proBNP、APACHE-Ⅱ评分均明显升高，胆碱酯酶活力明显降低（P<0.05）。非并发症组患者LVEF、FS均在正常范围，组间差异无统计学意义（P>0.05）。与其他各组比较，并发症肌钙蛋白升高组患者LVEF、FS明显下降（P<0.05）。相关性分析显示，SAOPP并发症组患者hs-cTnI与sST2呈正相关（r=0.725，P<0.01）；并发症组患者hs-cTnI、sST2与APACHE-Ⅱ评分均呈正相关（r=0.846、0.885，P<0.01）。ROC分析显示，入院后1 h hs-cTnI和入院后3 d sST2预测SAOPP继发心脏损害的曲线下面积分别为0.945、0.833。 结论： hs-cTnI和sST2可能对SAOPP继发心脏损害患者的早期诊断及预后评估有重要临床价值。.