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中华诊断学电子杂志 ›› 2025, Vol. 13 ›› Issue (04) : 260 -265. doi: 10.3877/cma.j.issn.2095-655X.2025.04.008

超声诊断

超声心动图联合血清cTnI、NT-proBNP对多发伤后心肌损伤的诊断价值
顾新刚, 尹进南()   
  1. 213017 常州市武进人民医院急诊科
  • 收稿日期:2025-11-12 出版日期:2025-11-26
  • 通信作者: 尹进南

Diagnostic value of echocardiography combined with serum cTnI and NT-proBNP in myocardial injury after multiple injuries

Xingang Gu, Jinnan Yin()   

  1. Department of Emergency, Changzhou Wujin People′s Hospital, Changzhou 213017, China
  • Received:2025-11-12 Published:2025-11-26
  • Corresponding author: Jinnan Yin
引用本文:

顾新刚, 尹进南. 超声心动图联合血清cTnI、NT-proBNP对多发伤后心肌损伤的诊断价值[J/OL]. 中华诊断学电子杂志, 2025, 13(04): 260-265.

Xingang Gu, Jinnan Yin. Diagnostic value of echocardiography combined with serum cTnI and NT-proBNP in myocardial injury after multiple injuries[J/OL]. Chinese Journal of Diagnostics(Electronic Edition), 2025, 13(04): 260-265.

目的

探讨超声心动图(UCG)联合血清心肌肌钙蛋白I(cTnI)、N末端B型利尿钠肽前体(NT-proBNP)对多发伤后心肌损伤的诊断价值。

方法

选择2023年5月至2025年8月常州市武进人民医院急诊科收治的160例多发伤患者,分为多发伤后心肌损伤组(n=84)与未合并心肌损伤组(n=76),并依据心肌损伤程度分为39例轻度损伤、25例中度损伤及20例重度损伤。比较多发伤后心肌损伤组与多发伤后未合并心肌损伤组,以及多发伤后不同心肌损伤程度左心室收缩末期内径(LVESD)、左心室舒张末期内径(LVEDD)、左心室射血分数(LVEF)及血清cTnI、NT-proBNP水平;采用Pearson相关性分析心肌损伤组LVEDD、LVESD、LVEF与血清cTnI、NT-proBNP的相关性;采用受试者操作特征(ROC)曲线评估单一指标与联合检测对多发伤后心肌损伤的诊断效能。

结果

多发伤后心肌损伤组LVEDD、LVESD、cTnI及NT-proBNP水平分别为[(52.85±4.12)mm,(41.58±5.23)mm,(1.25±0.26)μg/L,(1 856.32±185.47)ng/L],均显著高于未合并心肌损伤组[(43.25±4.61)mm,(35.12±4.35)mm,(0.04±0.01)μg/L,(97.56±10.82)ng/L];而LVEF[(45.23±4.65)%]显著低于未合并心肌损伤组[(55.68±4.21)%],均差异有统计学意义(t=13.910,8.444,40.532,82.517,14.845;均P<0.01)。多发伤后心肌损伤患者LVEDD、LVESD与cTnI呈正相关(r=0.472,0.460),与NT-proBNP呈正相关(r=0.394,0.401);LVEF与cTnI和NT-proBNP均呈负相关(r=-0.498,-0.385)。多发伤后心肌损伤重度组LVEDD、LVESD、cTnI、NT-proBNP水平均显著高于中度组及轻度组,LVEF显著低于中度组及轻度组;中度组LVEDD、LVESD、cTnI、NT-proBNP高于轻度组,LVEF低于轻度组(均P<0.05)。ROC曲线分析显示,单一指标中cTnI的诊断效能最优(AUC=0.830),而LVEDD、LVESD、LVEF、cTnI、NT-proBNP联合检测的AUC高达0.956,显著优于各单一指标。

结论

多发伤后心肌损伤患者存在明显的心脏结构与功能异常,血清标志物水平升高,且指标变化趋势与损伤程度一致。UCG联合血清cTnI、NT-proBNP检测可显著提高多发伤后心肌损伤的诊断效能。

Objective

To explore the diagnostic value of ultrasonocardiography (UCG) combined with serum cardiac troponin I (cTnI) and N-terminal brain natriuretic peptide precursor (NT-proBNP) in myocardial injury after multiple injuries.

Methods

A total of 160 patients with multiple injuries who were admitted to the Emergency Department of Wujin People′s Hospital in Changzhou City from May 2023 to August 2025 were enrolled, including 84 cases with myocardial injury and 76 cases without myocardial injury. According to the degree of myocardial injury, they were divided into mild injury (n=39), moderate injury (n=25) and severe injury (n=20). Compared left ventricular end-systolic diameter (LVESD), left ventricular end-diastolic diameter (LVEDD), left ventricular ejection fraction (LVEF), and serum cTnI and NT-proBNP levels between patients with and without myocardial injury, as well as among patients with different degrees of myocardial injury after multiple injuries, the Pearson correlation analysis was used to analyze the correlation between LVEDD, LVESD and LVEF and serum cTnI and NT-proBNP. The diagnostic efficacy of single indicator and combined detection for myocardial injury after multiple injuries was evaluated by receiver operator characteristic (ROC) curve.

Results

The LVEDD, LVESD, cTnI, and NT-proBNP levels in the group with myocardial injury were (52.85±4.12)mm, (41.58±5.23)mm, (1.25±0.26)μg/L, and (1 856.32±185.47)ng/L, respectively, which were higher than those in the group without myocardial injury [(43.25±4.61)mm, (35.12±4.35)mm, (0.04±0.01)μg/L, and (97.56±10.82)ng/L]. The LVEF [(45.23±4.65)%] was lower than that in group without myocardial injury [(55.68±4.21)%] (t=13.910, 8.444, 40.532, 82.517, 14.845, all P<0.01). In patients with multiple injuries, LVEDD and LVESD were positively correlated with cTnI (r=0.472, 0.460), and both were positively correlated with NT-proBNP (r=0.394, 0.401). LVEF was negatively correlated with cTnI and NT-proBNP (r=-0.498, -0.385). The LVEDD, LVESD, cTnI, and NT-proBNP in the severe myocardial injury group after multiple injuries were significantly higher and the LVEF was significantly lower than those in the moderate and mild group. The moderate group also had higher LVEDD, LVESD, cTnI, and NT-proBNP and lower LVEF than those in the mild group (all P<0.05). ROC curve analysis showed that among the single indicator, the diagnostic efficacy of cTnI was the best (AUC=0.830), the AUC of the combined detection indicators was 0.956, respectively greater than those of the individual indicator.

Conclusions

Patients with myocardial injury after multiple injuries exhibit structural and functiond cardiac abnormalities and elevated serum markers, and the trend of indicator changes is consistent with the degree of injury. UCG combined with serum cTnI and NT-proBNP detection can significantly improve the diagnostic efficiency of myocardial injury after multiple injuries.

表1 多发伤后心肌损伤组与多发伤未合并心肌损伤组临床资料比较
表2 多发伤后不同心肌损伤程度组一般资料比较
表3 两组LVEDD、LVESD、LVEF、cTnI及NT-proBNP水平比较(±s)
表4 多发伤后不同心肌损伤程度组LVEDD、LVESD、LVEF、cTnI、NT-proBNP水平比较(±s)
表5 多发伤后心肌损伤患者LVEDD、LVESD、LVEF与cTnI、NT-proBNP的相关性分析
图1 LVEDD、LVESD、LVEF、cTnI、NT-proBNP诊断预测多发伤后心肌损伤的ROC曲线注:LVESD为左心室收缩末期内径;LVEDD为左心室舒张末期内径;LVEF为左心室射血分数;cTnI为肌钙蛋白I;NT-proBNP为N末端B型利尿钠肽前体;ROC为受试者操作特征
表6 LVEDD、LVESD、LVEF、cTnI、NT-proBNP对多发伤后心肌损伤的预测效能
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