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  • Title: Management of acute heart failure following myocardial infarction: hemodynamic advantages of isosorbide dinitrate over frusemide.
    Author: Nelson GI, Silke B, Ahuja RC, Hussain M, Taylor SH.
    Journal: Z Kardiol; 1983; 72 Suppl 3():141-6. PubMed ID: 6666215.
    Abstract:
    The immediate hemodynamic effects of intravenous frusemide (1 mg/kg) and intravenous isosorbide dinitrate (50-200 micrograms/kg/h) were compared in a prospective, randomized, between-group study in 28 men with radiographic and hemodynamic evidence of left ventricular failure following acute myocardial infarction. The diuresis induced by frusemide reduced the left-heart filling pressure and cardiac output and transiently raised systemic blood pressure. In contrast, isosorbide dinitrate was accompanied by a reduction in systemic blood pressure and peripheral resistance, with the result that the cardiac output was not decreased despite a large fall in the pulmonary vascular and left-heart filling pressures. The results indicate that reduction of excessive preload by venodilatation may be hemodynamically superior to that induced by diuresis in terms of both reducing myocardial oxygen consumption and maintaining peripheral perfusion. The influence of these contrasting treatments on the prognosis of these high-risk patients warrants further study.
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