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A direct impedance-based method detected mitral insufficiency frequently during ventricular arrhythmias and in half of the dogs made acutely hypervolemic.
A novel impedance-based method demonstrates that mitral insufficiency frequently occurs during ventricular arrhythmias and acute hypervolemia in a canine model.
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Impedance-based mitral insufficiency detection remains experimental in animals; leaves open translation to human arrhythmias or hypervolemia.
A direct method for studying valvular competence is described based on changes in impedance in the blood induced by injections of concentrated saline. It does not require withdrawal of blood samples and may be repeated at frequent intervals in the same animal. It detected mitral insufficiency in the absence of significant changes in atrial pressure tracings. Mitral insufficiency was observed frequently in association with ventricular arrhythmias, occasionally with atrial arrhythmias and in half of the dogs made acutely hypervolemic.
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FRIEDMAN et al. (1956) studied Mitral insufficiency. Acute hypervolemia and arrhythmias was evaluated on Mitral insufficiency. A direct impedance-based method detected mitral insufficiency frequently during ventricular arrhythmias and in half of the dogs made acutely hypervolemic.
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