Dobutamine stress echocardiography in detecting restenosis after percutaneous coronary intervention / 中华超声影像学杂志

ABSTRACT

Objective To determine the accuracy and usefulness of dobutamine stress echocardiography(DSE) in detecting restenosis after percutaneous coronary intervention (PCI). Methods DSE was conducted in 47 patients before coronary angiography, 6 months to 18 months after PCI. The standard protocol of DSE was 5,10,20,30 ?g?kg~(-1)?min~(-1) with subsequent incremental increases every 3 minutes to a maximum dose of 40 ?g?kg~(-1)?min~(-1). Consistency of the results was compared between DSE and coronary angiography.Results Compared with coronary angiographic results, DSE had a low sensitivity(64%) but high specificity(86%) for detection of restenosis after PCI. The total accuracy was 72%. Conclusions DSE can assess restenosis after PCI with lower cost and safety.