The prognostic value of tissue Doppler imaging in assessment of left ventricular function in patients with non-ST segment elevation myocardial infarction (NSTEMI) after successful revascularization

Abstract

Background: The left ventricular ejection fraction (LVEF) is well recognized as a reliable indicator of cardiovascular prognosis in individuals with ischemic heart disease (IHD). This work aimed to assess the left ventricular (LV) performance following percutaneous coronary intervention (PCI) among individuals with non-ST segment elevation myocardial infarction (NSTEMI) following successful revascularization by pulsed wave (PW) - tissue Doppler Imaging (TDI) in comparison with two-dimensional (2 D) echocardiography. Methods: This current work had been conducted on 40 individuals with NSTEMI, underwent conventional M-mode and 2 D echo-Doppler and TDI examinations. All patients were subjected to conventional echocardiography, TDI, coronary angiography and PCI. Results: Troponin and creatine kinase MB (CKMB) were significantly greater following 1h contrasted to 0 h (p1.27, >1.05 and ≤6.4 with 70.0%, 75.0%, 95.0% and 95.0% sensitivity, 75.0%, 60.0%, 85.0% and 90.0% specificity, 73.7%, 65.2% and 86.4%. Conclusion: The left ventricular function after PCI showed enhancement following successful revascularization among individuals with NSTEMI. PW TDI can be used as valid imaging tool in comparison with 2 D Echocardiography.