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- W1599629765 abstract "Background: The aim of this study was to examine trends of clinical outcome and to clarify surrogate markers when titrating β-blocker in heart failure patients with reduced left ventricular ejection fraction (HFrEF, LVEF <50%). Methods and Results: Consecutive HFrEF patients starting on β-blocker were divided into 2 groups according to time of dose fixation attainment: before 31 December 2005 (group 1, n=108) or after 1 January 2006 (group 2, n=119). There were no significant differences in patient characteristics between the 2 groups at baseline. Beta-blocker fixed dose was higher with lower resting heart rate in group 2 (6.2±5.7mg/day vs. 9.5±9.1mg/day in carvedilol equivalent dose, P=0.001; 74.2±11.1beats/min vs. 70.2±9.7beats/min, P=0.004). The rate of HF hospitalization and/or all-cause death after 36 months was lower in group 2 than in group 1 (22% vs. 38%, P=0.011; hazard ratio, 0.90; P=0.012). Cox regression analysis showed that β-blocker ≥10mg/day and achieved heart rate ≤71beats/min predicted a better outcome (both P<0.05). Conclusions: Recent improvement of clinical outcome among HFrEF patients may be attributable to the up-titration policy accompanying lowered heart rate. Resting heart rate ≤71beats/min and β-blocker ≥10mg/day (ie, 50% of the target dose for Japanese patients) could be surrogate markers when titrating β-blocker. (Circ J 2013; 77: 1001–1008)" @default.
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- W1599629765 date "2013-01-01" @default.
- W1599629765 modified "2023-09-30" @default.
- W1599629765 title "Trend of Clinical Outcome and Surrogate Markers During Titration of β-Blocker in Heart Failure Patients With Reduced Ejection Fraction" @default.
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- W1599629765 doi "https://doi.org/10.1253/circj.cj-12-1241" @default.
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