No beneficial effects of coronary thrombectomy on left ventricular systolic and diastolic function in patients with acute S-T elevation myocardial infarction: A randomized clinical trial

Objective. We sought to evaluate the effect of acute coronary thrombectomy, as adjunctive treatment to primary percutaneous coronary intervention, on the systolic and diastolic left ventricular function, in patients with acute S-T elevation myocardial infarction. Methods. In a prospective randomized study, patients with acute S-T elevation myocardial infarction were randomized to treatment with primary percutaneous coronary intervention with or without thrombectomy. Outcome measures were left ventricular volumes and ejection fraction in addition to systolic long-axis function, estimated from the tissue Doppler systolic velocities of the mitral ring. Diastolic function was assessed by mitral inflow and diastolic velocities of the mitral ring movement.