Correlation of Right Ventricular Wall Stress With Plasma B-Type Natriuretic Peptide Levels in Patients With Pulmonary Hypertension

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  • Uchiyama Nami
    Department of Cardiovascular Medicine and Hypertension, Kagoshima University Graduate School of Medicine and Dental Sciences
  • Yuasa Toshinori
    Department of Cardiovascular Medicine and Hypertension, Kagoshima University Graduate School of Medicine and Dental Sciences
  • Miyata Masaaki
    Department of Cardiovascular Medicine and Hypertension, Kagoshima University Graduate School of Medicine and Dental Sciences
  • Horizoe Yoshihisa
    Department of Cardiovascular Medicine and Hypertension, Kagoshima University Graduate School of Medicine and Dental Sciences
  • Chaen Hideto
    Department of Cardiovascular Medicine and Hypertension, Kagoshima University Graduate School of Medicine and Dental Sciences
  • Kubota Kayoko
    Department of Cardiovascular Medicine and Hypertension, Kagoshima University Graduate School of Medicine and Dental Sciences
  • Takasaki Kunitsugu
    Department of Cardiovascular Medicine and Hypertension, Kagoshima University Graduate School of Medicine and Dental Sciences
  • Mizukami Naoko
    Department of Clinical Laboratory, Kagoshima University Medical and Dental Hospital
  • Kisanuki Akira
    Department of Health Sciences, Kagoshima University Faculty of Medicine, Kagoshima University
  • Ohishi Mitsuru
    Department of Cardiovascular Medicine and Hypertension, Kagoshima University Graduate School of Medicine and Dental Sciences

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<p>Background: This study was designed to investigate the relationship between right ventricular wall stress (RVWS) and plasma B-type natriuretic peptide (BNP) levels in patients with pulmonary hypertension (PH). </p><p>Methods and Results: The 57 consecutive PH patients and 8 control subjects were enrolled. Right heart catheterization (RHC), echocardiography, and BNP measurements were performed, and RVWS and left ventricular wall stress (LVWS) were calculated with the formula based on Laplace’s law. Systolic RVWS and end-diastolic RVWS were higher in PH patients compared with controls (systolic RVWS: 77±41 vs. 17±5 kdynes/cm2(P<0.0001), end-diastolic RVWS: 15±12 vs. 8±2 kdynes/cm2(P<0.0005)). Univariate analyses showed that logBNP at baseline correlated with systolic RVWS (r=0.58, P<0.0001) and end-diastolic RVWS (r=0.61, P<0.0001). We performed multivariate regression analysis and determined that end-diastolic RVWS was an independent determinant of logBNP in patients with PH. In addition, change in plasma BNP levels after treatment correlated with change in systolic RVWS (r=0.70, P<0.0001) and change in end-diastolic RVWS (r=0.68, P<0.0001). </p><p>Conclusions: Both systolic and end-diastolic RVWS were elevated in patients with PH, and correlated with the symptoms of PH. End-diastolic RVWS was an independent determinant of plasma BNP levels in PH patients. </p>

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  • Circulation Journal

    Circulation Journal 83 (6), 1278-1285, 2019-05-24

    一般社団法人 日本循環器学会

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