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      Accuracy of Two-Dimensional Echocardiographic Planimetry of the Mitral Valve Area before and after Balloon Valvuloplasty

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          The purpose of this study was to assess the accuracy of planimetry after percutaneous balloon mitral valvuloplasty (PBMV). The mitral valve area (MVA) was estimated in 34 patients before and after PBMV, using two-dimensional echocardiographic planimetry, Doppler pressure half-time (PHT), and the Gorlin formula. There was no significant difference in the correlation of planimetry and PHT before (r = 0.53, p = 0.001) and after PBMV (r = 0.56, p < 0.001). A similar correlation was found between planimetry and the Gorlin formula (r = 0.44, p = 0.01 before PBMV, r = 0.37, p = 0.03 after PBMV). The concordance between planimetry, PHT, and the Gorlin formula in classifying patients into mild, moderate, or severe mitral stenosis was not worse after PBMV. Planimetry-derived MVA was not less accurate after PBMV than before PBMV. However, the correlation between the two echocardiographic measurements and the Gorlin formula was only moderate.

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          Hydraulic formula for calculation of the area of the stenotic mitral valve, other cardiac valves, and central circulatory shunts. I

           R Gorlin,  S.G. Gorlin (1951)

            Author and article information

            S. Karger AG
            December 1998
            15 October 2008
            : 90
            : 3
            : 227-230
            Department of Cardiology, Washington Hospital Center, Washington, D.C., USA
            6848 Cardiology 1998;90:227–230
            © 1998 S. Karger AG, Basel

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            Page count
            Figures: 1, Tables: 1, References: 12, Pages: 4
            Noninvasive and Diagnostic Cardiology


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