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Objectives. The aim of this multicenter, multinational, prospective, observational study was to assess the relative value of myocardial viability and induced ischemia early after uncomplicated myocardial infarction.Background. Dobutamine–atropine stress echocardiography allows evaluation of rest function (at baseline), myocardial viability (at low dose) and residual ischemia (peak dose, up to 40 μg...
Early after acute myocardial infarction (AMI) residual viability can be detected by 2-D echocardiography during low-dose dobutamine (DOB) infusion. Aim of this study was to evaluate the relationship between signal averaged ECG (SAE) and the amount of viable myocardial tissue in patients with recent MI. Forty-eight pts, 37 males, mean age 60 +/- 8 years, underwent a DOB-echo 14 +/- 3 days after MI...
After myocardial infarction (MI) viable myocardium between normal and necrotic areas may represent a possible substrate for an abnormal signal averaged ECG (SAE). Myocardial viability can be assessed by low-dose dobutamine (Dob)-Echo on the basis of the contractile recovery of a basal asynergy. Aim of this study was to assess whether Dob-induced improvement in contractility may change SAE in patients...
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