Association between positive stress echocardiography and the result of coronary angiography

Introduction Stress echocardiography quickly overtook the simple stress test in the diagnosis of coronary artery disease because disorders of the left ventricle's kinetic can be detected long before electrocardiographic abnormality. The objective of this study was to determine the association between stress echocardiography and the result of coronarography. Method We performed a retrospective descriptive study from November 2019 to December 2020. Patients with a positive stress echocardiography (exercise or dobutamine) and who have done a coronary angiography at the hospital of Perigueux were included. Results 57 patients were selected including 39 with exercise and 18 with dobutamine stress echocardiography. The average age was 64.84. The mean of the theoretical maximum heart rate was 89.24%. Degradation of kinetics only on peak was common in unknown patients for a coronary artery disease, while degradation on both peak and recovery concerned more those with a history of coronary artery disease (P = 0.0234). Degradation of kinetics was more common in multivessel coronary artery disease, but the association was not significant. The compliance with stopping betablocker before the examination (P = 0.0084), the existence of a significant coronary lesion (P = 0.0075) influenced the topography concordance of coronary lesion between echography and coronary angiography. The length (P = 0.2587), the multivessel type of lesions on coronary angiography (P = 0.1748) did not influence the topographic concordance. This concordance was better with exercise than with dobutamine with a significant difference (P = 0.048). Conclusion The knowledge both these factors which can modify the moment of the degradation of the kinetics and the parameters which can influence the concordance echography-coronary angiography can help us to have ideas to interpret this exam which is operator dependent.