13 The latter fact suggests some increase in myocardial efficiency, although comparisons did not reach statistical significance in the trial by Eichhorn and colleagues. 13 The improved ventricular performance may be predominantly due to the enhanced cardiac contractility and not due to the modest vasodilator effect. 13 This improvement in contractility has been confirmed by relatively load-independent methods (end-systolic
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Bucindolol: a pharmacogenomic perspective on its use in chronic heart failure.
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73 It should be noted that, in the BEST trial, a nominally significant interaction effect of therapy was found only for race (African American vs.