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  • Title: Hemodynamic effects of digoxin in acute myocardial infarction in man: a randomized controlled trial.
    Author: Marchionni N, Pini R, Vannucci A, Conti A, De Alfieri W, Calamandrei M, Di Bari M, Ferrucci L, Moschi G, Lombardi A.
    Journal: Am Heart J; 1985 Jan; 109(1):63-9. PubMed ID: 3880992.
    Abstract:
    Hemodynamic effects of digoxin in acute myocardial infarction (AMI) have been acknowledged to depend on the basal cardiocirculatory state. In the present study, the effects of digoxin in patients with AMI were evaluated in four hemodynamic subsets, based on the relationship between mean pulmonary capillary wedge pressure (PCWP, in mm Hg) and left ventricular stroke work index (LVSWI, in g-m/m2): subset 1: normal (less than or equal to 15 mm Hg) PCWP and normal (greater than or equal to 35 g-m/m2) LVSWI; subset 2: elevated (greater than 15 mm Hg) PCWP and normal LVSWI; subset 3: reduced (less than 35 g-m/m2) LVSWI and normal PCWP; and subset 4: elevated PCWP and LVSWI moderately reduced to a range between 16 and 34 g-m/m2. Forty patients were admitted to the study and were randomly assigned to one of two groups in each subset: control group (19 patients) and treated group (21 patients). Five patients were randomized into each of the subsets 2, 3, and 4 in both the control and treated groups, while in subset 1 there were four control and six digoxin-treated patients. Control patients were administered a placebo saline solution and digoxin-treated patients received 0.50 mg of the drug intravenously in 20 minutes. The effects of the placebo and of the drug were evaluated at 30, 60, and 90 minutes from the end of the infusion. Hemodynamic data did not vary in the control group, and digoxin did not exert any relevant effect in subsets 1 and 2. After drug infusion, cardiac index (Cl, in L/min/m2) significantly increased in subset 3 patients.(ABSTRACT TRUNCATED AT 250 WORDS)
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