Quality of Life as an Independent Predictor for Cardiac Events and Death in Patients With Heart Failure

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  • Kato Naoko
    Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
  • Kinugawa Koichiro
    Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
  • Seki Satomi
    Department of Adult Nursing, Graduate School of Medicine, The University of Tokyo
  • Shiga Taro
    Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
  • Hatano Masaru
    Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
  • Yao Atsushi
    Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
  • Hirata Yasunobu
    Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
  • Kazuma Keiko
    Department of Adult Nursing, Graduate School of Medicine, The University of Tokyo
  • Nagai Ryozo
    Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo

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Abstract

Background: Little is known about health-related quality of life (QOL) in Japanese patients with heart failure. The purpose of this study was to identify factors related to QOL using a disease-specific QOL instrument, and to clarify whether QOL independently predicts clinical outcomes among Japanese patients with heart failure. Methods and Results: A total of 114 outpatients with heart failure were enrolled (mean age 64.7±15.8 years; 73.7% males). The Minnesota Living with Heart Failure Questionnaire (MLHFQ) to assess patient's QOL was used. At baseline, depressive symptoms and chronic kidney disease were significantly associated with worse QOL in multiple regression analysis. During a 2-year follow up, patients with a MLHFQ score ≥26, indicating worse QOL, had a higher incidence of the combined endpoint of cardiac death or hospitalization for heart failure, and a higher all-cause mortality than those with a score <26 (25.3% vs. 7.5%, P=0.011; 18.5% vs. 6.4%, P=0.018; respectively). Multivariate Cox proportional hazard models demonstrated that a higher MLHFQ score was significantly associated with increased risks of cardiac events (hazard ratio, 1.02, 95% confidential interval, 1.001-1.05, P=0.038) and of all-cause death (hazard ratio, 1.04, 95% confidential interval, 1.02-1.07, P=0.001). Conclusions: Depressive symptoms and chronic kidney disease are major determinants of impaired QOL, and the MLHFQ score is an independent predictor of both cardiac events and death among Japanese patients with heart failure. (Circ J 2011; 75: 1661-1669)<br>

Journal

  • Circulation Journal

    Circulation Journal 75 (7), 1661-1669, 2011

    The Japanese Circulation Society

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