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Research Article| Volume 68, ISSUE 4, P764-772, April 2018

Association of non-alcoholic steatohepatitis with subclinical myocardial dysfunction in non-cirrhotic patients

  • Yong-ho Lee
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

    Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Kwang Joon Kim
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Myung eun Yoo
    Affiliations
    Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Gyuri Kim
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Hye-jin Yoon
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Kwanhyeong Jo
    Affiliations
    Department of Nuclear Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Jong-Chan Youn
    Affiliations
    Division of Cardiology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Republic of Korea

    Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Mijin Yun
    Affiliations
    Department of Nuclear Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Jun Yong Park
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Chi Young Shim
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

    Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Byung-Wan Lee
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

    Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Seok-Min Kang
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

    Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Jong-Won Ha
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

    Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Bong-Soo Cha
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

    Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, Republic of Korea
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  • Eun Seok Kang
    Correspondence
    Corresponding author. Address: Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea. Tel.: +82 2 2228 1968; fax: +82 2 393 6884.
    Affiliations
    Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea

    Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, Republic of Korea
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Published:November 23, 2017DOI:https://doi.org/10.1016/j.jhep.2017.11.023

      Highlights

      • Patients with NAFLD had alterations in cardiac remodeling.
      • Hepatic steatosis and fibrosis are associated with diastolic heart dysfunction.
      • Those without NAFLD were more likely to have higher myocardial glucose uptake.
      • Hepatic fibrosis was correlated with decreased myocardial glucose uptake.

      Background & Aims

      Non-alcoholic fatty liver disease (NAFLD) is associated with increased cardiovascular risk. Among categories of NAFLD, hepatic fibrosis is most likely to affect mortality. Myocardial function and its energy metabolism are tightly linked, which might be altered by an insulin resistant condition such as NAFLD. We investigated whether hepatic steatosis and fibrosis were associated with myocardial dysfunction relative to myocardial glucose uptake.

      Methods

      A total of 308 patients (190 without NAFLD, 118 with NAFLD) were studied in a tertiary care hospital. Myocardial glucose uptake was evaluated at fasted state using [18F]-fluorodeoxyglucose-positron emission tomography (18FDG-PET). Hepatic steatosis and fibrosis were assessed by transient liver elastography (Fibroscan®) with controlled attenuation parameter, which quantifies hepatic fat and by surrogate indices (fatty liver index and NAFLD fibrosis score). Cardiac structure and function were examined by echocardiogram.

      Results

      Compared to those without NAFLD, patients with NAFLD had alterations in cardiac remodeling, manifested by increased left ventricular mass index, left ventricular end-diastolic diameter, and left atrial volume index (all p <0.05). Hepatic steatosis was significantly associated with left ventricular filling pressure (E/e’ ratio), which reflects diastolic dysfunction (p for trend <0.05). Those without NAFLD were more likely to have higher myocardial glucose uptake compared to those with NAFLD. Significant hepatic fibrosis was also correlated with diastolic dysfunction and impaired myocardial glucose uptake. Using multivariable linear regression, E/e’ ratio was independently associated with hepatic fibrosis (standardized β = 0.12 to 0.27; all p <0.05). Association between hepatic steatosis and E/e’ ratio was also significant (standardized β = 0.10 to 0.15; all p <0.05 excluding the model adjusted for adiposity).

      Conclusions

      Hepatic steatosis and fibrosis are significantly associated with diastolic heart dysfunction. This association is linked with myocardial glucose uptake evaluated by 18FDG-PET.

      Lay summary

      Non-alcoholic fatty liver disease is associated with an increased risk of cardiovascular disease. More severe forms of non-alcoholic fatty liver disease, where hepatic fibrosis occurs, are linked to increased mortality. In this study, we have shown that hepatic steatosis and fibrosis are associated with subclinical myocardial dysfunction. This association is linked to altered myocardial glucose uptake.

      Graphical abstract

      Keywords

      Linked Article

      • Non-alcoholic fatty liver disease: A risk factor for myocardial dysfunction?
        Journal of HepatologyVol. 68Issue 4
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          There is mounting evidence that besides increasing the risk of cirrhosis, end-stage liver disease and hepatocellular carcinoma, non-alcoholic fatty liver disease (NAFLD) also affects risk of disease in organs beyond the liver.1 For example, NAFLD is an independent risk factor for cardiovascular disease (CVD),2 type 2 diabetes3 and chronic kidney disease,4 and NAFLD also increases risk of cardiac arrhythmias and aortic valve disease.1 However, whether NAFLD is a risk factor for impaired myocardial function is uncertain.
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