• J. Am. Coll. Cardiol. · Oct 2017

    Heart Rate and Outcomes in Hospitalized Patients With Heart Failure With Preserved Ejection Fraction.

    • Phillip H Lam, Daniel J Dooley, Prakash Deedwania, Steven N Singh, Deepak L Bhatt, Charity J Morgan, Javed Butler, Selma F Mohammed, Wen-Chih Wu, Gurusher Panjrath, Michael R Zile, Michel White, Cherinne Arundel, Thomas E Love, Marc R Blackman, Richard M Allman, Wilbert S Aronow, Stefan D Anker, Gregg C Fonarow, and Ali Ahmed.
    • Center for Health and Aging, Veterans Affairs Medical Center, Washington, DC; Department of Medicine, Georgetown University, Washington, DC; Division of Cardiology, MedStar Washington Hospital Center, Washington, DC.
    • J. Am. Coll. Cardiol. 2017 Oct 10; 70 (15): 1861-1871.

    BackgroundA lower heart rate is associated with better outcomes in patients with heart failure (HF) with reduced ejection fraction (EF). Less is known about this association in patients with HF with preserved ejection fraction (HFpEF).ObjectivesThe aims of this study were to examine associations of discharge heart rate with outcomes in hospitalized patients with HFpEF.MethodsOf the 8,873 hospitalized patients with HFpEF (EF ≥50%) in the Medicare-linked OPTIMIZE-HF (Organized Program to Initiate Lifesaving Treatment in Hospitalized Patients with Heart Failure) registry, 6,286 had a stable heart rate, defined as ≤20 beats/min variation between admission and discharge. Of these, 2,369 (38%) had a discharge heart rate of <70 beats/min. Propensity scores for discharge heart rate <70 beats/min, estimated for each of the 6,286 patients, were used to assemble a cohort of 2,031 pairs of patients with heart rate <70 versus ≥70 beats/min, balanced on 58 baseline characteristics.ResultsThe 4,062 matched patients had a mean age of 79 ± 10 years, 66% were women, and 10% were African American. During 6 years (median 2.8 years) of follow-up, all-cause mortality was 65% versus 70% for matched patients with a discharge heart rate <70 versus ≥70 beats/min, respectively (hazard ratio [HR]: 0.86; 95% confidence interval [CI]: 0.80 to 0.93; p < 0.001). A heart rate <70 beats/min was also associated with a lower risk for the combined endpoint of HF readmission or all-cause mortality (HR: 0.90; 95% CI: 0.84 to 0.96; p = 0.002), but not with HF readmission (HR: 0.93; 95% CI: 0.85 to 1.01) or all-cause readmission (HR: 1.01; 95% CI: 0.95 to 1.08). Similar associations were observed regardless of heart rhythm or receipt of beta-blockers.ConclusionsAmong hospitalized patients with HFpEF, a lower discharge heart rate was independently associated with a lower risk of all-cause mortality, but not readmission.Published by Elsevier Inc.

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