Heart and Brain Interconnection　– Clinical Implications of Changes in Brain Function During Heart Failure –

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  • Kim Min-Seok
    Department of Internal Medicine, Asan Medical Center Heart Institute, University of Ulsan College of Medicine
  • Kim Jae-Joong
    Department of Internal Medicine, Asan Medical Center Heart Institute, University of Ulsan College of Medicine

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Abstract

Heart failure (HF) is a highly prevalent disorder worldwide and, consequently, a burden on the healthcare systems of many nations. Although the effects of HF are systemic, many therapeutic targets are focused on cardiac dysfunction. The brain is closely related to the heart, but there are few reports on the relationship between these organs. We describe the effects of the brain on HF progression. Specific brain regions control sympathetic drive and neurohumoral factors, which play an important role in disease exacerbation. In addition, we review some of our previous studies on deranged cerebral metabolism and reduced cerebral blood flow during HF. Although the reasons underlying these effects during HF remain uncertain, we propose plausible mechanisms for these phenomena. In addition, the clinical implications of such conditions in terms of predicting prognosis are discussed. Finally, we investigate cognitive impairment in patients with HF. Cognitive impairment through cerebral infarction or hypoperfusion is associated with adverse outcomes, including death. This brief review of brain function during the development of HF should assist with future strategies to better manage patients with this condition. (Circ J 2015; 79: 942–947)

Journal

  • Circulation Journal

    Circulation Journal 79 (5), 942-947, 2015

    The Japanese Circulation Society

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