the echocardiographic estimation of left ventricular filling pressures in patients with mitral valve stenosis

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ID: 239249
2010
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Abstract
"nBackground: Estimation of Left Ventricular End Diastolic Pressure (LVEDP) among patients with Mitral Stenosis (MS) helps to diagnose diastolic dysfunction and to explain their symptoms. However, Conventional Doppler measurements have limitation in predicting of LVEDP. This study sought to establish whether the correlation between measurements derived from Tissue Doppler echocardiography and LVEDP remains valid in the setting of severe mitral stenosis. "n"nMethods: Thirty three patients with moderate to severe MS who had indication for left heart catheterization enrolled during 1387-88 in Imam Khomeini Hospital in Tehran, Iran. The mean diastolic transmitral pressure gradient and mitral valve area (MVA) were calculated, and Two-dimensional, M-mode, color Doppler and tissue Doppler Imaging indices such as: early diastolic mitral inflow velocity (E), annular early diastolic velocity (Ea), E/A ratio, Isovolemic relaxation time (IVRT), Pulmonary Vein systolic and diastolic flow velocities, Velocity Propagation, LA size, TE-Ea, Tei Index were obtained in maximum three hours before cardiac catheterization. The echocardiography analysis was performed offline without knowledge of hemodynamic data Linear correlation and multiple linear regression were used for analysis. p< 0.05 was considered significant. "n"nResults: In univariate analysis, E/Ea was associated with LVEDP significantly (p = 0.04, r = 0.38). There was also a significant correlation between TE-Ea and LVDP (p = 0.01, r = -0.44). In multiple linear regression Tei Index (ß = 0.4, p< 0.02), and TE-Ea (ß = 0.5, p = 0.02) were showed as independent predictors of LVEDP (R2 = 49%). "n"nConclusion: Although we observed a moderate correlation between Doppler measurements and LVEDP in patients with severe MS, more similar studies are required.
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Authors ;Sattarzadeh Badkoubeh R;Tavoosi A;Heidari K;Rezaei Hemami M
Journal asian journal of chemistry
Year 2010
DOI
DOI not found
URL
http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/16447.pdf&manuscript_id=16447
Keywords
echocardiography mitral stenosis doppler pressuremedicine (general)

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