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      Atrial Vectorcardiogram in Mitral Valve Disease

      ,

      Cardiology

      S. Karger AG

      Vectorcardiography, Mitral valve disease, Atrial vectorcardiogram

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          Abstract

          Atrial vectorcardiograms (P sSPACE-loops) were recorded at high gain from 19 adult patients with mitral valve disease and enlargement of the left atrium using the equilateral tetrahedral reference frame. The P sSPACE-loops of the patients with mitral valve disease differed from P sSPACE-loops of 39 normal subjects in that (1) they were more distorted and contained a large number of high frequency components, (2) in the transverse plane projection they were more ‘open’ in appearance and enclosed a larger area when they were not of figure-of-eight configuration, and (3) those with a figure-of-eight configuration had maximal mean instantaneous vectors (MMIV) which were definitely abnormal. Catheterization data from seven patients failed to show a significant relationship with configuration of the P sSPACE-loops.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1973
          1973
          29 October 2008
          : 58
          : 2
          : 80-88
          Affiliations
          Department of Medicine, Tulane University School of Medicine and Charity Hospital of Louisiana, New Orleans, La
          Article
          169620 Cardiology 1973;58:80–88
          10.1159/000169620
          4270817
          © 1973 S. Karger AG, Basel

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          Page count
          Pages: 9
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