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      Systemic and Pulmonary Flow in Mitral Stenosis: Evidence for a Bronchial Vein Shunt

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          Abstract

          We measured pulmonary and systemic flows in 22 patients with mitral stenosis and in 7 controls. In patients with mitral stenosis, pulmonary flow index averaged 2.33 ± 0.41 l/min/m<sup>2</sup> and systemic flow index averaged 2.15 ± 0.601/min/m<sup>2</sup>, p = 0.045. There was a strong correlation between the difference in pulmonary and systemic flow indexes and the difference in mean left and right atrial pressure (r = 0.749, p = 0.00008). After a successful dilatation in 17 patients, there was a significant drop in the difference between pulmonary and systemic flow indexes (0.26 ± 0.41 vs. 0.07 ± 0.371/min/m<sup>2</sup>, p = 0.048). We conclude that chronic elevation of left atrial pressure leads to a left to right shunt probably through bronchial veins.

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          Author and article information

          Journal
          CRD
          Cardiology
          10.1159/issn.0008-6312
          Cardiology
          S. Karger AG
          0008-6312
          1421-9751
          1991
          1991
          12 November 2008
          : 78
          : 4
          : 311-316
          Affiliations
          Center for Cardiovascular Surgery ‘Dr. Dragisa Misovic’, Beograd, Yugoslavia
          Article
          174810 Cardiology 1991;78:311–316
          10.1159/000174810
          1889049
          © 1991 S. Karger AG, Basel

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          Page count
          Pages: 6
          Categories
          General Cardiology

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