Title: Evaluation on the impact of percutaneous coronary intervention in patients with non-infarcted coronary artery disease with two-dimensional strain
Abstract: Objective To observe the value of two-dimensional strain using velocity vector imaging(VVI) in evaluating the therapeutic effect of percutaneous coronary intervention(PCI) in patients with non-infarcted coronary artery disease(CAD).Methods Twenty non-infarcted CAD patients underwent PCI(PCI group) and 20age and sex matched subjects(control group) confirmed by coronary angiography(CAG) were enrolled.VVI were acquired before CAG and PCI procedures for all subjects,and were repeated in PCI group before discharge and 3months after PCI.The longitudinal,radial,circumferential regional strain and strain rate,as well as left ventricular torsion were analyzed.The regional myocardial deformation parameters in territory of the stenostic coronary artery in PCI group(ischemic segments) were compared with those of corresponding segments in control group(normal segments).Post PCI changes of myocardial strain and left ventricular torsion were also followed up to assess the effect of PCI procedure on left ventricular myocardial function.Results Compared to the control group,the radial deformation function of the ischemic segments was damaged,with significantly lower values of radial peak systolic strain rate(SRs) and strain,radial peak late-diastolic strain rate(SRa) in PCI group before operation(all P0.05).Left ventricular torsion obviously decreased in PCI group before operation compared with that in control group,despite ejection fraction.Radial peak systolic strain was improved shortly in group PCI before discharge(P0.01),while radial SRs and SRa were improved in PCI group 3months after operation.Conclusion VVI can identify the subtle abnormalities of regional and global function secondary to the ischemic,which are ignored by the routine echocardiography.Radial strain can be improved early after PCI.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot