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      Clinical Value of the Pitch of the Third Heart Sound in Ischemic Heart Disease

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          Abstract

          The study investigates the genesis of the third heart sound (S3) in ischemic heart disease based on a mass-spring model. In such a system, the natural frequency of vibration, Fn, depends on the elastic constant, k, and the mass, m, according to the following relationship: Fn = 1/2 π k/m. To identify the cardiac structures representing k and m, the correlations between the energy of the S3 spectrum and the echocardiographic parameters were searched for. The results are consistent with a model in which k is represented by the thickness of the left ventricle and m by its blood content. The k/m ratio emerges as an important determining factor of the acoustic quality of S3, and yields information on the dysfunction of the left ventricle in ischemic heart disease.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1990
          1990
          12 November 2008
          : 77
          : 2
          : 86-92
          Affiliations
          aIstituto di Clinica Medica, Università di Ferrara; bDivisione Cardiologica, Ospedale di Legnago, Italia; cDepartment of Cardiology, KU Leuven, Belgium
          Article
          174588 Cardiology 1990;77:86–92
          10.1159/000174588
          2397490
          © 1990 S. Karger AG, Basel

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          Page count
          Pages: 7
          Categories
          Original Paper

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