The comparison analysis of low-dose dobutamine electrocardiography stress test and echocardiography stress test in the diagnosis of coronary artery disease
10.3760/cma.j.issn.1673-4904.2012.04.006
- VernacularTitle:小剂量多巴酚丁胺心电图负荷试验与超声心动图负荷试验在冠心病诊断中的临床对比分析
- Author:
Gangqiang WANG
- Publication Type:Journal Article
- Keywords:
Dobutamine;
Electrocardiography;
Echocardiography;
Coronary disease
- From:
Chinese Journal of Postgraduates of Medicine
2012;35(4):16-18
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare low-dose dobutamine electrocardiography (ECG) stress test and echocardiography (ECHO) stress test in the diagnosis of coronary artery disease (CHD).Methods Fifty-six patients with CHD were chosen.They were given dobutamine before test in the speed of 1 μ g/(kg· min ),and gradually increased to 5 μ g/(kg·min).Low-dose dobutamine ECG stress test,ECHO stress test and coronary angiography (CAG) were performed,and the results were compared.The sensitivity,specificity and accuracy of low-dose dobutamine ECG stress test and ECHO stress test were calculated.Results CAG showed 37 cases of patients with coronary artery stenosis.The sensitivity,specificity and accuracy of low-dose dobutamine ECG stress test were 62.16％ (23/37),73.68％ (14/19) and 66.07％ (37/56).The sensitivity,specificity and accuracy of ECHO stress test were 86.49％ (32/37),52.63％ (10/19) and 75.00％ (42/56).There were significant differences in sensitivity and specificity between two test methods (P ＜0.05).Conclusions In the diagnosis of CHD, low-dose dobutamine ECG stress test has high specificity,and ECHO stress test has high sensitivity andaccuracy.Combination of them has high clinical value.
