慢性心衰患者心脏超声诊断的应用价值评估及效果评价

Evaluation of Application Value and Effect of Cardiac Ultrasound Diagnosis in Patients with Chronic Heart Failure

目的探究慢性心衰患者心脏超声诊断的应用价值评估及效果评价。方法研究对象选取该院2018年10月—2019年10月收治的慢性心力衰竭患者74例作为研究组,另外选取在该院正常体检的健康人群为对照组(72名),两组均进行心脏超声诊断检查,并将检查结果进行对比。结果该次研究中,病理学确诊为慢性心力衰竭患者74例,其中超声心动图检出阳性72例,阴性2例,72名正常人员中检出阳性6名,阴性66名,即其真阳性72例,假阴性6例,真阴性66例,假阳性2例,由此可计算得出超声心动图对慢性心力衰竭阳性预测率为97.29%,阴性预测率为91.16%,诊断灵敏度为90.00%,特异度为97.05%,约登指数为87.05%;经过观察比较对照组LAD(30.28±3.31)mm显著低于研究组LAD(39.49±4.32)mm(t=14.483,P=0.000),对照组LVEDD(43.27±3.37)mm显著低于研究组LVEDD(53.42±4.93)mm(t=14.556,P=0.000),对照组HFEI(0.78±0.37)显著低于研究组HFEI(1.89±0.71)(t=11.891,P=0.000),同时对照组LVEF (0.81±0.07)%显著高于研究组LVEF (0.53±0.04)%(t=29.567,P=0.000),根据心功能等级将各个等级的NT-proBNP水平与对照组进行比较,结果显示研究组NT-proBNP显著高于对照组(P<0.05)。结论心脏超声对慢性心力衰竭的诊断,能客观、全面的评估其心脏情况,同时具有较高的敏感度与特异度,且为临床治疗与诊断提供依据,具有较好的临床价值。但该次研究样本较少。

Objective To explore the application value and effect evaluation of cardiac ultrasound diagnosis in patients with chronic heart failure. Methods The study subjects selected 74 cases of chronic heart failure patients treated in the hospital from October 2018 to October 2019 as the research group, and a healthy group of normal health checkups in the hospital was selected as the control group(72 cases). Ultrasound diagnosis and comparison of the results. Results In this study, 74 people with chronic heart failure were confirmed by pathology. Among them, 72 were positive on echocardiography, 2 were negative, and 6 were positive and 66 were negative in 72 normal persons, which is true positive. 72 cases of true positive, 6 cases of false negatives, 66 cases of true yin, and 2 cases of false positives. From this, it can be calculated that the positive predictive rate of chronic heart failure by echocardiography was 97.29%, the negative predictive rate was 91.16%, and the diagnostic sensitivity was 90.00 %, Specificity was 97.05%, and Jordan’s index was 87.05%. After observation and comparison, the LAD of the control group(30.28±3.31) mm was significantly lower than the LAD of the study group(39.49 ±4.32)mm(t=14.483, P=0.000), and the LVEDD of the control group(43.27±3.37) mm was significantly lower than the LVEDD of the study group(53.42±4.93)mm(t=14.556, P=0.000), and the control group HFEI(0.78±0.37) was significantly lower than the study group HFEI(1.89±0.71)(t=11.891, P= 0.000),while the control group LVEF(0.81 ±0.07)% was significantly higher than the study group LVEF(0.53 ±0.04)%(t =29.567, P =0.000). The levels of NT-proBNP in each level were compared with the control group according to the cardiac function level.-proBNP is significantly higher than the control group(P<0.05). Conclusion The diagnosis of chronic heart failure can objectively and comprehensively evaluate its heart condition, and has high sensitivity and specificity, and provides a basis for clinical treatment and diagnosis, which has good clinical value. But this research sample amount is small.