Value of dobutamine stress tissue Doppler in evaluation ofLV functional improvement after elective PCI
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Aim: To clarify the value of dobutamine stress tissue Doppler in the evaluation of LV functional improvement after elective PCI. Methods: The study included 60 patients with hibernating viable myocardium proved by DSE referred for an evaluation of myocardial viability prior to revascularization. Hemodynamic and echocardiographic variables (LVEF, WMSI and TDI Sm) were assessed at rest and during stress. I month after PCI Follow up echocardiography and TDI were done. Patients were divided into 2 groups: (Group I); 18 patients (30%) with no global functional recovery and (Group II): 42 patients (70%) with global functional recovery.