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  • Title: Systemic and pulmonary flow in mitral stenosis: evidence for a bronchial vein shunt.
    Author: Babic UU, Popovic Z, Grujicic S, Pejcic P, Djurisic Z, Vucinic M.
    Journal: Cardiology; 1991; 78(4):311-6. PubMed ID: 1889049.
    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/m2 and systemic flow index averaged 2.15 +/- 0.60 l/min/m2, 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 +/- 0.37 l/min/m2, 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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